ECISS/TC 105 - Steels for heat treatment, alloy steels, free-cutting steels and stainless steels

This document specifies the technical delivery requirements for bright steel products in the drawn, peeled/turned or additional ground condition and they are intended for mechanical purposes, for example for machine parts. The bright steel products are subdivided into the following steel types:
a)       non-alloy general engineering steels;
b)       non-alloy free-cutting steels;
c)        non-alloy and alloy case-hardening steels;
d)       non-alloy and alloy steels for quenching and tempering.
Bright products of stainless steels are not part of this document, they are covered by ISO 16143-4.

This document specifies the technical delivery conditions for hot or cold rolled sheet/plate and strip of standard grades and special grades of corrosion resistant stainless steels for general purposes.
NOTE   General purposes include the use of stainless steels in contact with foodstuffs.
The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this document, unless otherwise specified in the document.
This document does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.

This document specifies the technical delivery conditions for semi-finished products, hot or cold formed bars, rods, wire, sections and bright products of standard grades and special grades of corrosion resistant stainless steels for general purposes.
NOTE   General purposes include the use of stainless steels in contact with foodstuffs.
The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this document, unless otherwise specified in this document.
This document does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.

This document lists the chemical composition of stainless steels, which are subdivided in accordance with their main properties into corrosion resistant steels, heat resistant steels and creep resistant steels (see Annex C) and specified in the European Standards given in Table 1.
Table 1 — Overview of material standards for stainless steels
(...)
Reference data on some physical properties are given in Annex E, Tables E.1 to E.8.
Empirical formulae for steel grade microstructure classification and pitting resistance ranking are given in Annex D.
NOTE 1   A matrix that shows which steels are included in which standard is given in Annex B.
NOTE 2   Valve steels are specified in EN 10090.
NOTE 3   Steel castings are specified in various European Standards (see Bibliography).
NOTE 4   Tool steels are specified in EN ISO 4957.
NOTE 5   Welding consumables are specified in various European Standards (see Bibliography).

This document applies to bright steel products in the drawn, turned or ground condition delivered in straight lengths. This document is mainly applied to stainless steels of EN 10088-3 and other product standards, e.g. tool steels, roller bearing steels.
This document can also be used for cold heading steels in the form of bars and wire; in case of wire, the thickness and tolerances apply but not the length and the straightness.
The non-alloy and alloy steels of EN 10277 are no longer included.
This document does not cover cold rolled products and cut lengths produced from strip or sheet by cutting.

This document specifies the technical delivery requirements for five groups of wrought ball and roller bearing steels as listed in Table 3, namely
—     through-hardening bearing steels (steels with about 1 % C and 1 % to 2 % Cr),
—     case-hardening bearing steels,
—     induction-hardening bearing steels (unalloyed and alloyed),
—     stainless bearing steels, and
—     high-temperature bearing steels.
This document is applicable to the products and heat-treatment conditions given in Table 1 and the surface conditions given in Table 2.

This document specifies an order for listing elements within the chemical composition of steels and most other iron-based alloys, excluding foundry irons.

This document specifies the technical delivery requirements for
—    semi-finished products, hot formed (e.g. blooms, billets, slabs) (see NOTE 1),
—    bars (see NOTE 1),
—    wire rod,
—    finished flat products, and
—    hammer or drop forgings (see NOTE 1)
manufactured from the case-hardening non-alloy or alloy steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.
The steels are, in general, intended for the manufacture of case-hardened machine parts.
NOTE 1   Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammerforged bars are covered under semi-finished products or bars and not under the term “hammer and drop forgings”.
NOTE 2   For International Standards relating to steels conforming with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.

This document specifies the technical delivery conditions for cold rolled narrow steel strip made of non alloy and alloy steel grades in the form of coils and cut lengths in rolling widths less than 600 mm. Cold rolled narrow steel strip is available in grades of case hardening steel and of steels for quenching and tempering for general and special applications particularily springs.
-   Case hardening steels in thicknesses up to and including 10 mm;
-   steels for quenching and tempering in thicknesses up to and including 6 mm in the conditions annealed (+A), annealed and skin passed (+LC) or cold rolled (+CR);
-   steels in the quenched and tempered condition (+QT) in thicknesses between 0,30 mm and 3,00 mm.
In special cases supplementary requirements or deviations with respect to this document can be agreed between the purchaser and the supplier at the time of enquiry and order (see 5.2 and Annex A).
In addition to the requirements of this document, the general technical delivery requirements specified in EN 10021 apply.
This document does not cover cold rolled flat products for which separate standards exist, e.g.:
-   cold rolled uncoated low carbon steel narrow strip for cold forming (EN 10139);
-   cold rolled steel flat products with higher yield strength for cold forming (EN 10268).

ISO 683-5:2017 gives the technical delivery requirements for
-      semi-finished products, e.g. blooms, billets, slabs (see note 1),
-      bars (see note 1),
-      wire rod,
-      hot-rolled plates (see note 2), and
-      hammer or drop forgings (see note 1)
manufactured from the nitriding steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1, rows 2 to 5, and in one of the surface conditions given in Table 2.
The steels are generally intended for the fabrication of quenched and tempered and, subsequently, nitriding machine parts.
The requirements for mechanical properties given in this document are restricted to the sizes given in Table 6.
NOTE 1       Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are in the following covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2       The term "plate" includes in the following also wide flats unless otherwise stated.
In special cases, variations in these technical delivery requirements or additions to these requirements can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex B).
In addition to this document, the general technical delivery requirements of ISO 404 are applicable.

This document specifies technical delivery requirements for the surface quality of round bars, squares, hexagons and wire rod in the hot rolled condition with nominal dimensions dN from 5 mm to 200 mm. This document is applicable to bright products and tool steels, if agreed at the time of enquiry and order between manufacturer and purchaser.
By agreement between manufacturer and purchaser, this document can also be applied to other special profiles.
This document is particularly applicable to steels for engineering and structural applications.
This document does not include any requirements for the permissible depth of surface decarburization.
NOTE       The determination of depth of surface decarburization is presented in ISO 3887.
The material standards for steel bars and wire rod can exclude the application of one or other of the surface quality classes of this document. They can also cover requirements for surface quality which deviate from this document. In these cases the requirements of the material standard prevail.

This document specifies requirements for the following grades of wrought tool steels:
a)    non-alloy cold-work tool steels;
b)    alloy cold-work tool steels;
c)    alloy hot-work tool steels;
d)    high-speed tool steels.
If not stated otherwise, this document applies to all types of hot-rolled, forged, cold-drawn or cold-rolled products or products produced by powder metallurgy, which are supplied in one of the surface and heat-treatment conditions given in 6.2 and Table 1.
NOTE       Tables 2, 4, 6 and 8 cover only those steels which have gained certain international importance, which does not mean, however, that they are available in all industrial countries. In addition, a number of other steels for tools are specified in regional, national or company standards.
Where the heat resistance of the tools is of particular importance, as for example in the case of tools for hot forming glass, the material selection is based on ISO 4955.

ISO 683-1:2016 specifies the technical delivery requirements for
-      semi-finished products, hot formed, e.g. blooms, billets, slabs (see Note 1),
-      bars (see Note 1),
-      wire rod,
-      finished flat products, and
-      hammer or drop forgings (see Note 1)
manufactured from the direct hardening non-alloy steels and the non-alloy flame- and induction-hardening steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.
The steels are, in general, intended for the manufacture of quenched and tempered or austempered (see 3.2 and Note 2) and flame- or induction-hardened machine parts (see Tables 9 and 11), but can also be partly used in the normalized condition (see Table 10).
The requirements for mechanical properties given in ISO 683-1:2016 are restricted to the sizes given in Tables 9 and 10.
NOTE 1       Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are, in the following, covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2       For the purposes of simplification, the term "quenched and tempered" is, unless otherwise indicated, used in the following also for the austempered condition.
NOTE 3       For International Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.
NOTE 4       ISO 683-1 :2016 does not apply to bright products and bars and wire rod for cold heading. For such products, see ISO 683‑18 and ISO 4954.
In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement between the manufacturer and purchaser at the time of enquiry and order (see 5.2 and Annex B).
In addition to ISO 683-1:2016, the general technical delivery requirements of ISO 404 are applicable.

ISO 683-2:2016 specifies the technical delivery requirements for
-      semi-finished products, hot formed, e.g. blooms, billets, slabs (see Note 1),
-      bars (see Note 1),
-      wire rod,
       finished flat products, and
-      hammer or drop forgings (see Note 1)
manufactured from the direct hardening alloy steels and the alloy flame- and induction-hardening steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.
The steels are, in general, intended for the manufacture of quenched and tempered or austempered (see 3.2 and Note 2) and flame- or induction-hardened machine parts (see Tables 8 and 9).
The requirements for mechanical properties given in ISO 683-2:2016 are restricted to the sizes given in the relevant Table 8.
NOTE 1       Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are in the following covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2       For the purposes of simplification, the term "quenched and tempered" is, unless otherwise indicated, used in the following also for the austempered condition.
NOTE 3       For International Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.
NOTE 4       ISO 683-2 :2016 does not apply to bright products and bars and wire rod for cold heading. For such products, see ISO 683‑18 and ISO 4954.
In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex B).
In addition to ISO 683-2:2016, the general technical delivery requirements of ISO 404 are applicable.

ISO 683-4:2016 gives the technical delivery requirements for semi-finished products (e.g. blooms, billets, slabs), bars and wire rod, manufactured from the free-cutting steels listed in Table 2 and supplied in one of the treatment conditions given for the different types of products in Table 1, rows 2 to 4.
It covers three groups of free-cutting steels for mechanical purposes as listed in Table 2, namely
a)    not intended for heat treatment,
b)    suitable for case-hardening, and
c)    suitable for quenching and tempering.
Free-cutting steels are often used as bright bars. For these products, refer to ISO 683‑18.
In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex B).
In addition to ISO 683-4:2016, the general technical delivery requirements of ISO 404 are applicable.

1.1   The scope of this part of EN 10088 is to specify the technical delivery conditions for hot or cold rolled sheet/plate and strip of standard and special grades of corrosion resisting stainless steels for construction purposes in addition to the general technical delivery conditions specified in EN 10021.
1.2   This European Standard does not apply to components manufactured by further processing of the product forms listed in 1.1 with quality characteristics altered as a result of such further processing.

ISO 9444-2:2009 specifies the tolerances on dimensions and form for continuously hot-rolled stainless steel wide strip in actual widths from 600 mm to 2 500 mm and for sheet/plate cut from such strip.

ISO 18286:2008 specifies requirements for tolerances for hot-rolled stainless steel plates (quarto plates) made on a reversing mill with the following characteristics: nominal thickness, t, from 4 mm to 250 mm; and nominal width, w, equal to or greater than 600 mm.
Tolerances for plate of width w less than 600 mm cut or slit from wider plate should be agreed upon between manufacturer and purchaser at the time of enquiry and order.
ISO 18286:2008 is not applicable to round plates, custom-made plates, checker plate or bulb plate for flooring or wide flats, nor to continuous-process plates (plate made with coiling).

1.1   The scope of this part of EN 10088 is to specify the technical delivery conditions for hot or cold formed bars, rods, wire, sections and bright products of standard and special grades of corrosion resisting stainless steels for construction purposes in addition to the general technical delivery conditions specified in EN 10021.
1.2   This European Standard does not apply to components manufactured by further processing of the product forms listed in 1.1 with quality characteristics altered as a result of such further processing.

This document specifies the technical delivery requirements for the following steel products intended for use in the construction industry:
bars (including hammer-forged bars);
wide flats;
hot-rolled strip and sheet/plate;
forgings.
They are manufactured from the direct hardening non alloy steels for quenching and tempering and the direct hardening alloy steels for quenching and tempering and supplied in one of the heat treatment conditions given for the different types of products in Table 1.
These steels are generally intended for the manufacture of quenched and tempered parts, but can also be used in the normalized condition.
The requirements for mechanical properties are restricted to part sizes given in Tables 4 and 5.
NOTE 1   In accordance with EN 10020, the steels covered by this standard are quality and special steels. The differences between quality and special steels are characterized by the following requirements, which are valid for special steels only:
   the minimum impact values in the quenched and tempered condition (for non alloy special steels in the case of mean percentages by mass of carbon < 0,50 % only);
   limited oxide inclusion content;
   lower maximum contents for phosphorus and sulphur.
NOTE 2   This standard does not apply for bright steel products.
NOTE 3   This standard only applies for the manufacture of products without any further cold or hot forming and no additional heat treatment, i.e. the properties are according to the delivery condition (+N, +QT).
In addition to the specifications of this European Standard, the general technical delivery conditions given in EN 10021 will be applicable unless otherwise specified.

ISO 9445-2:2009 specifies the tolerances on dimensions and form for continuously cold-rolled stainless steel wide strip and plate/sheet, in thicknesses from 0,30 mm to 8,0 mm and in rolling widths from 600 mm to 2 100 mm. It also applies to slit cold-rolled wide strip in widths less than 600 mm manufactured from wide strip by longitudinal slitting and to cut lengths manufactured from such strip.

ISO 9445-1:2009 specifies the tolerances on dimensions and form for continuously cold-rolled stainless steel narrow strip, in thicknesses of up to and including 3 mm and in rolling widths of less than 600 mm. It also applies to cut lengths taken from such strip.
Narrow strip and cut lengths with widths of less than 600 mm, which are manufactured from wide strip by longitudinal slitting, are covered in ISO 9445-2.

1.1   This European Standard covers the grades of wrought steels and alloys listed in Table 1 and Table 2, which are usually employed for components and equipment, for which the main requirement is their creep resistance under mechanical long-time stressing at temperatures above 500 C.
NOTE   Heat resisting grades given in EN 10095 [9] may also be used for similar applications if so agreed.
1.2   This European Standard specifies the technical delivery conditions for semi-finished products, for hot or cold rolled sheet/plate and strip, hot or cold formed (cold drawn) bars, rods, wire and sections.
1.3   The general technical delivery conditions specified in EN 10021:2006 apply in addition to the specifications of this European Standard, unless otherwise specified in this European Standard.
1.4   This European Standard does not apply to components manufactured by further processing the product forms listed in 1.2 with quality characteristics altered as a result of such further processing.
1.5   This European Standard shall not be used for aerospace and pressure purposes.
1.6   For steels and alloys with similar chemical composition, but intended for different applications, see the Bibliography.

1.1 This European Standard specifies the technical delivery requirements for round and flat bars and rod manufactured from the alloy steels listed in table 3, intended for hot-formed and subsequently heat-treated springs or cold-formed and subsequently heat-treated springs. The products are supplied in one of the heat-treatment conditions given for the different types of products in table 1, lines 2 to 6, and in one of the surface conditions given in table 2.

1.1 This European Standard applies to cold rolled narrow strip of thickness up to and including 3 mm in rolled widths less than 600 mm made from the stainless steel grades listed in table 1. The steels are currently used in the conditions given in table 4 for the production of springs and spring parts that are exposed to corrosive effects and sometimes slightly increased temperatures (see A.1).

TC - Table 2, one value for an upper limit different from E and F

1.1 This European standard covers the grades of wrought steels and nickel alloys listed in tables 1 to 3 which are usually employed for products, for which the main requirement is their resistance to the effects of hot gases and products of combustion at temperatures above 550° C. 1.2 This EN 10095 specifies the technical delivery conditions for semi-finished products, for hot or cold rolled sheet/plate and strip, hot or cold formed bars, rods and sections of heat resisting steels and nickel alloys.

This European Standard gives the technical delivery requirements for semi-finished products and bars of the alloy special steels listed in table 3 and 5. The prodcuts are supplied in the conditions given in table 1, line 2 to 4, and in one of the surface conditions given in table 2. In special cases, variations in these technical delivery requirements or additions to them may form the subject of an agreement at the time of enquiry and order (see Annex A).

1.1 This European Standard applies to the grades of wrought high-alloy materials listed in table 1. These valve materials are used for intake and exhaust valves in reciprocating internal combustion engines. It is applicable to bars, wire, rod and forgings and for the surface finishes listed in note 3 of 6.3. 1.2 This European Standard does not apply to alloys resistant to wear and corrosion which are used to protect valve seat surfaces.

This document specifies the technical delivery requirements for bright steel bars in the drawn, peeled/turned or ground condition and they are intended for mechanical purposes, for example for machine parts. The bright bars are subdivided into the following steel types:
a)   non-alloy general engineering steels;
b)   non-alloy free-cutting steels;
c)   non-alloy and alloy case-hardening steels;
d)   non-alloy and alloy steels for quenching and tempering.
This document lists the mechanical characteristics for products up to 100 mm in thickness. For larger dimensions, the manufacturer and purchaser agree on mechanical properties at the time of enquiry and order.
It does not cover cold rolled products and cut lengths produced from strip or sheet by cutting. Bright steel products of stainless steels are to be found in EN 10088 3.
In addition to this document, the general technical delivery requirements of EN 10021 are applicable.

This European Standard specifies the technical delivery conditions for hot or cold rolled sheet/plate and strip of standard grades and special grades of corrosion resisting stainless steels for general purposes.
NOTE   General purposes include the use of stainless steels in contact with foodstuffs.
The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this European Standard, unless otherwise specified in this European Standard.
This European Standard does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.

This European Standard specifies the technical delivery conditions for semi-finished products, hot or cold formed bars, rods, wire, sections and bright products of standard grades and special grades of corrosion resisting stainless steels for general purposes.
NOTE   General purposes include the use of stainless steels in contact with foodstuffs.
The general technical delivery conditions specified in EN 10021 apply in addition to the specifications of this European Standard, unless otherwise specified in this European Standard.
This European Standard does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.

This European Standard lists the chemical composition of stainless steels, which are subdivided in accordance with their main properties into corrosion resisting steels, heat resisting steels and creep resisting steels and specified in the European Standards given in Table 1.
(...)
Reference data on some physical properties are given in Tables E.1 to E.8.
NOTE 1   A matrix that shows which steels are included in which standard is given in Annex B.
NOTE 2   Valve steels are specified in EN 10090.
NOTE 3   Steel castings are specified in various European Standards (see Bibliography).
NOTE 4   Tool steels are specified in EN ISO 4957.
NOTE 5   Welding consumables are specified in various European Standards (see Bibliography).

This European Standard applies to bright steel products in the drawn, turned or ground condition delivered in straight lengths. It does not cover cold rolled products and cut lengths produced from strip or sheet by cutting.

ISO 683-17:2014 specifies the technical delivery requirements for five groups of wrought ball and roller bearing steels: through-hardening bearing steels (steels with about 1 % C and 1 % to 2 % Cr), case-hardening bearing steels, induction-hardening bearing steels (unalloyed and alloyed), stainless bearing steels, and high-temperature bearing steels.

This document specifies the technical delivery requirements for
—          semi-finished products, hot formed, e.g. blooms, billets, slabs (see NOTE 1),
—          bars (see NOTE 1),
—          wire rod,
—          finished flat products, and
—          hammer or drop forgings (see NOTE 1)
manufactured from the case-hardening non-alloy or alloy steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.
The steels are, in general, intended for the manufacture of case-hardened machine parts.
NOTE 1    Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2    For International Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.
In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex A).
In addition to this document, the general technical delivery requirements of ISO 404 are applicable.

1.1 This part of EN 10132 applies to: - non-alloy and alloy cold rolled narrow steel strip thicknesses up to 6 mm; - non-alloy and alloy cold rolled narrow steel strip in the quenched and tempered condition in thicknesses between 0,30 mm and 3,00 mm for springs and for other special applications. 1.2 This EN 10132-4 is complemented by EN 10132-1.

1.1 This part of EN 10132 specifies the general technical delivery conditions for non-alloy and alloy cold rolled narrow steel strip in rolling widths < 600 mm for heat treatment. 1.2 In special cases supplementary requirements or deviations with respect to this European Standard may be agreed between the purchaser and the supplier at the time of enquiry and order (see annex A). 1.3 In addition to the requirements of this standard, the general technical delivery requirements specified in EN 10021 apply.

1.1 This Part of EN 10132 applies to non-alloy and alloy cold rolled narrow steel strip for case hardening with thicknesses up to 10 mm for general applicattions. 1.2 This EN 10132-2 is complemented by EN 10132-1.

1.1 This part of EN 10132 applies to non-alloy and alloy cold rolled narrow steel strip in thicknesses up to 6 mm for quenching and tempering, and in the quenched and tempered condition with thicknesses between 0,30 mm and 3,00 mm for general and for specific applications. 1.2 This EN 10132-3 is complemented by EN 10132-1.

1.1 This European Standard specifies the technical delivery requirements for - semi-finished products, e.g. blooms, billets, slabs; - bars; - rod; - wide flats; - hot- or cold-rolled stirp and sheet/plate; - forgings
manufactured from the nitriding steels listed in table 3 and supplied in one of the heat-treatment conditions given for the different types of products in table 1, line 2 to 4 and in one of the surface conditions given in table 2.
The steels are, in general, intended for the fabrication of quenched and tempered and generally machined subsequently nitrided parts.
NOTE 1 Some grades from EN 10083-1 are also used for nitriding treatment.
NOTE 2 Related European Standards are given in annex E.
NOTE 3 Hammer-forged semi-finished products (blooms, billets, slabs etc.) and hammer-forged bars are in the following covered under semi-finished products or bars and not under the term "forgings".
1.2 In special cases, variations in these technical delivery requirements or additions to them may from the subject of an agreement at the time of enquiry and order (see annex B).
1.3 In addition to the specifications of this European Standard, the general technical delivery requirements of EN 10021 are applicable.

ISO 683-3:2016 specifies the technical delivery requirements for
- semi-finished products, hot formed, e.g. blooms, billets, slabs (see Note 1),
- bars (see Note 1),
- wire rod,
- finished flat products, and
- hammer or drop forgings (see Note 1)
manufactured from the case-hardening non-alloy or alloy steels listed in Table 3 and supplied in one of the heat-treatment conditions given for the different types of products in Table 1 and in one of the surface conditions given in Table 2.
The steels are, in general, intended for the manufacture of case-hardened (see 3.1) machine parts.
NOTE 1 Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are covered under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 2 For International Standards relating to steels complying with the requirements for the chemical composition in Table 3, however, supplied in other product forms or treatment conditions than given above or intended for special applications, and for other related International Standards, see the Bibliography.
In special cases, variations in these technical delivery requirements or additions to them can form the subject of an agreement at the time of enquiry and order (see 5.2 and Annex A).
In addition to ISO 683-3:2016, the general technical delivery requirements of ISO 404 are applicable.

This European standard specifies the requirements for the surface quality of hot rolled round bars and rods with nominal diameters of 5 mm

This international standard covers the grades of wrought tool steels listed in tables 2, 4, 6 and 8, namely: a) unalloyed cold-work tool steels (see table 2); b) alloyed cold-work tool steels (see table 4); c) alloyed hot-work tool steels (see table 6); d) high-speed steels (see table 8). If not stated in the following, this international standard applies to all types of hot-rolled, forged or cold-drawn products which are supplied in one of the surface and heat-treatment conditions given in 5.1.2 and table 1.

This part of EN 10083, in addition to Part 1, specifies the technical delivery requirements for: semi-finished products, hot formed, e.g. blooms, billets, slabs, bars, rod, wide flats, hot-rolled strip and sheet/plate, forgings, manufactured from the direct hardening alloy steels for quenching and tempering and the alloy flame and induction hardening steels and supplied in one of the heat treatment conditions given for the different types of products in Table 1, lines 2 to 6, and in one of the surface conditions given in Table 2. The steels are generally intended for the fabrication of quenched and tempered, flame or induction hardened machine parts. The requirements for mechanical properties given in this document are restricted to the sizes given in Table 8.

1.1   This European Standard gives the technical delivery requirements for:
-   semi-finished products, hot formed, for example blooms, billets, slabs (see NOTE 2 and NOTE 3),
-   bars (see NOTE 2),
-   rod,
-   wide flats, quarto plates,
-   hot-rolled sheet/plate and strip,
-   hammer and drop forgings (see NOTE 2),
manufactured from the case hardening non alloyed or alloyed steels (see NOTE 4) listed in Table 3 and sup-plied in one of the heat treatment conditions given for the different types of products in Table 1, lines 2 to 7 and in one of the surface conditions given in Table 2.
The steels are in general intended for the fabrication of case-hardened (see Clause 3) machine parts.
NOTE 1   European Standards relating to steels complying with the requirements for the chemical composition in Ta-ble 3 but which are supplied in other product forms or treatment conditions than given above or are intended for special applications, and European Standards for similar steel grades are listed in the Bibliography.
NOTE 2   Hammer-forged semi-finished products (blooms, billets, slabs, etc.), seamless rolled rings and hammer-forged bars are included under semi-finished products or bars and not under the term "hammer and drop forgings".
NOTE 3   Special agreements shall be made when ordering non-deformed continuously cast semi-finished products.
NOTE 4   In accordance with EN 10020, the steels covered by this European Standard are special steels.
1.2   In special cases variations in these technical delivery requirements or additions to them may form the subject of an agreement at the time of enquiry and order (see Annex A).
1.3   In addition to the specifications of this European Standard, the general technical delivery requirements of EN 10021 are applicable, unless otherwise specified.

This part of EN 10277 applies to bright steel bars in the drawn, turned or ground condition, in straight lengths of free-cutting steels.
This EN 10277-3 is complemented by EN 10277-1.

This part of EN 10277 applies to bright steel bars in the drawn, turned or ground condition, in straight lengths of steels for quenching and tempering.
This EN 10277-5 is complemented by EN 10277-1.

This part of EN 10277 applies to bright steel bars in the drawn, turned or ground condition, in straight lengths of case hardening steels.
This EN 10277-4 is complemented by EN 10277-1.

This part of prEN 10277 specifies the general technical delivery conditions for bright steel bars in the drawn, turned or ground condition, in straight lengths and of the following steel types:
a)   steels for general engineering purposes as specified in EN 10277-2;
b)   free-cutting steels as specified in EN 10277-3;
c)   case hardening steels as specified in prEN 10277-4;
d)   steels for quenching and tempering as specified in EN 10277-5.
It does not cover cold rolled products and cut lengths produced from strip or sheet by cutting.
In special cases variations in these technical delivery requirements or additions to them may form the subject of an agreement at the time of enquiry and order (see Annex B).
In addition to the specifications of this European Standard, the general technical delivery requirements of EN 10021 are applicable, unless otherwise specified.