ECISS/TC 13 - Flat products for cold working - Qualities, dimensions, tolerances and specific tests

This European Standard specifies dimensional and cross-sectional tolerances for cold rolled steel sections produced on roll-forming machines.
It applies to cold-rolled sections for general use (standard sections) produced from steels conforming to EN 10025, EN 10142 and EN 10147 and in the form of rectangular L, U, C, Z and Omega cross sections as well as split tubes (see Figures 1 to 6).
It also applies to cold rolled sections for special applications (special sections) produced from steels listed in clause 5 with other radii, tolerances and shapes.
NOTE   Examples of special sections are sections for steel-framed buildings, door frames and sections for rolling stock, automobiles and bridge engineering (see Figures 7 and 8).
This European Standard does not apply to drawn, pressed or folded cold formed sections, cold rolled steel piling or sections manufactured on the basis of special standards.

This European Standard applies to uncoated hot rolled narrow steel strip, of width less than 600 mm, made of the steel grades covered by the following: EURONORMS 84, 96, 120, 156; European Standards EN 10025, EN 10028, EN 10083-1, EN 10083-2, EN 10083-3, EN 10113-2, EN 10113-3, EN 10155 and EN 10207; draft European Standards prEN 10088-2, prEN 10111, prEN 10137-2, prEN 10137-3, prEN 10149-2, prEN 10149-3 and prEN 10208-2. Note: This European Standard may be applied to other types of steels if agreed at the time of ordering.

1.1  This European Standard applies to cold rolled narrow strip in coils and cut lengths in thicknesses up to 10 mm and of widths less than 600 mm, made from mild, unalloyed and alloyed steels in accordance with table 1.           These products are suitable for cold forming. They are also suitable for surface coating. On the other hand, they are not suitable for hardening treatment followed by tempening.           1.2  Ths European Standard does not cover cold rolled flat products for which a separate standard already exists, particularly the following products:           -   cold rolled non oriented magnetic steel sheet and strip (EN 10106);  -   grain-oriented magnetic steel sheet and strip (EN 10107); -   sam-processed steel strip for the construction of magnetic circuits ( EN 10126 and EN 10165);           -   cold rolled narrow strip for the manufacture of springs (EURONORM 132);           -  high yield strength steels for cold forming (EN 10268);           -  cold rolled uncoated low carbon steel flat products for cold forming (EN 10130);  -  cold reduced blackplate (EN 10205);           -  sheet and strip for enamelling (EN 10209).

This European Standard defines the measurement conditions for surface roughness parameters of metallic flat products, both uncoated (cold and hot rolled pickled steel) and coated with metallic coatings (e.g. zinc, aluminium, tin, chromium) [see subclause 3.1].

This European Standard applies to cold rolled uncoated steel flat products for cold forming with higher yield strength. The thickness is equal to or less than 3 mm.
These products are delivered in sheet, wide strip, slit wide strip, narrow strip or cut lengths obtained from slit wide strip, narrow strip or sheet.

This European standard applies to cold rolled non-coated low carbon steel flat products in rolled widths equal to or over 600 mm and in thicknesses equal to orless than 3 mm, delivered in sheet, wide strip, slit wide strip or cut lengths obtained from slit wide strip or sheet. It does not apply to cold rolled narrow strip (rolling width < 600 mm) nor to cold rolled flat products for which there is a specific standard, in particular the following: - cold rolled low carbon steel flat products for cold forming (EN 10130), cold rolled non-grain oriented magnetic steel sheet and strip (prEN 10106),...

This European standard specifies the grades of continuously hot rolled tow caroon steel sheet and strip (in coils) for cold forming.           Depending on its actual width, strip is classified as:           - hot rolled wide strip if its width is greater than or equal to 600 mm; - hot rolled slit wide strip, if its width is less than 600 mm.           For each grade, it specifies the chemical composition and the mechanical properties.           This European Standard is applicable to products of thickness not less than 1,5 mm and not exceeding 8 mm.           This European Standard is not applicable to products covered by other standards, such as:           - hot roiled products of non-alloy structural steels for general use (EN 10025); - steel sheet for pressure purposes (EN 10028); - steel sheet for welded gas cylinders (EN 10120); - quenched and tempered steels (EN 10083-1 and EN 10083-2).

The second paragraph should read as follows: It does not apply to cold-rolled narrow strip (rolling width < 600 mm) nor to flat cold-rolled products for which there is a specific standard, in particular the following: - cold-rolled non-grain oriented magnetic steel sheet and strip (prEN 10106), - semi-processed steel strip for the construction of magnetic circuits (prEN 10126 and prEN 10165); - cold-rolled blackplate in coils for the production of tinplate or electrolytic chrome iron (EN 10205).

The object of this European Standard is to define the chemical and mechanical properties and inspection conditions for cold-rolled flat products made of high yield strength steels for cold forming. The steels included are of high strength low-alloy (HSLA) type, where the principal strengtheming mechanism is via microalloying additions of dispersed elements such as Nb, Ti or V.  This European Standard is applicable to cold-rolled flat products of thickness less than or equal to 3 mm.

This European Standard applies to cold rolled narrow strip in coils and cut length in thicknesses up to 10 mm and of widths less than 600 mm, made from unalloyed and alloyed steels with the exception of stainless and heat-resisting steels and the products given in 1.2. The application of this European Standard to products with other dimensions shall be agreed separately.

This European Standard applies to cold-rolled uncoated low carbon and high yield strength steel flat products for cold forming with a minimum thickness of 0,35 mm and unless otherwise agreed at the time of ordering less than or equal to 3 mm thick, delivered in sheet, wide strip, slit wide strip, or cut lengths obtained from slit wide strip or sheet.

[As modified by Amendment A1 :1998]  This European Standard applies to cold-rolled non-coated low carbon steel flat products in rolled widths equal to or over 600 mm for cold forming, with a minimum thickness of 0,35 mm, and unless otherwise agreed at the time of the order, equal to or less than 3 mm, delivered in sheet, coil, slit coil, or cut lengths obtained from slit coil or sheet.           It does not apply to cold-rolled narrow strip (rolling width < 600 mm) nor to flat cold-rolled products for which there is a specific standard in particular the following:           - cold-rolled non-grain oriented magnetic steel sheet and strip (EN 10106); - semi-processed steel strip for the construction or magnetic circuits CEN 10126 and EN 10165); - blackplate in coils (EN 10205); - steel sheet and strip for welded gas cylinders (EN 10120); - hot-rolled flat products in high yield strength steels for cold forming EN 10149-2-3); - cold-rolled flat products in high yield strength steels for cold forming (prEN 10268); - cold-rolled uncoated non alloy mild steel narrow strip for cold forming (pr EN 10139); - cold-rolled low carbon steel flat products for vitreous enamelling (EN 10209); - cold-rolled structural steels for general purposes.