EN 4700-006:2025

Aerospace series - Steel and heat-resisting alloys for wrought products - Technical specification - Part 006: Pre-production and production forgings

This document specifies the requirements for the ordering, manufacture, testing, inspection and delivery of pre-production and production forgings in steel and heat-resisting alloys.

Luft- und Raumfahrt - Stahl und Hochwarmfesten Legierungen - Umgeformte Erzeugnisse - Technische Lieferbedingungen - Teil 006: Ausfallmuster und Serienschmiedestücke

No Scope available

Série aérospatiale - Acier et alliages résistant à chaud pour les produits corroyés - Spécification technique - Partie 006 : Pièces types et pièces de série

Le présent document spécifie les exigences relatives aux commandes, à la fabrication, aux essais, aux contrôles et à la livraison des pièces types et pièces de série en acier et alliages résistant à chaud.

Aeronavtika - Jeklo in zlitine, odporne proti vročini - Gneteni izdelki - Tehnična specifikacija - 006. del: Vzorci in izkovki za proizvodnjo

General Information

• Status: Published
• Publication Date: 09-Dec-2025
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 3 - Steels & Heat Resisting Alloys
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 10-Dec-2025
• Completion Date: 10-Dec-2025
• Ref Project: SIST EN 4700-006:2026 - Aerospace series - Steel and heat-resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings

Relations

• Replaces: EN 4700-006:2010 - Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 006: Pre-production and production forgings
• Effective Date: 30-Aug-2023

Overview

EN 4700-006:2025 - published by CEN (prepared by ASD‑STAN) - is the European technical specification for pre‑production and production forgings made from steel and heat‑resisting alloys for aerospace applications. It defines requirements for ordering, manufacture, testing, inspection and delivery of wrought forgings and supersedes EN 4700‑006:2010. The standard was approved December 2025 and is to be adopted as a national standard across CEN member bodies.

Key topics and technical requirements

• Scope and applicability: Requirements for pre‑production (qualification) and serial production forgings in steels and heat‑resisting alloys for aerospace components.
• Wording of order: Clear ordering information is mandated (quantities, delivery dates, material standard, delivery condition, dimensions/tolerances, packing, test definitions).
• Qualification & re‑qualification: Procedures for initial qualification using pre‑production forgings and conditions triggering re‑qualification (drawing changes, new dies, different forging stock, long production gaps).
• Release testing and sampling procedures: Four sampling procedures are defined - Procedure A (separate forged samples from same batch), B (separate heat‑treatment control samples from different batch, used with procedure X), C (integral samples removed from forgings) and D (machined samples from selected forgings).
• Process control (Procedure X): Periodic cut‑up testing to ensure ongoing conformity during serial production; can be required alongside other sampling procedures.
• Testing, inspection and traceability: Requirements include tensile, hardness, impact, non‑destructive testing, inspection and test reports, and traceability to heat/batch. Reference to dedicated test methods and inspection schedules is required.
• Health & safety: Delivery condition must comply with applicable health and safety laws and a product safety data sheet is required.
• Documentation & reporting: Inspection and test reports, manufacturing/inspection schedules and capability/statistical process control provisions are specified.

Practical applications and users

• Who uses it: Aerospace forging manufacturers, procurement professionals, quality/production engineers, metallurgists, inspection authorities and OEMs specifying forged steel or high‑temperature alloy components.
• Typical use cases: Specifying supplier contracts, qualifying new forging processes or dies, establishing batch release/testing regimes, developing inspection schedules and ensuring traceability for flight‑critical parts.

Related standards (examples referenced)

• EN 4258 (series organization), EN 4259 (terms), EN 2078 (inspection/test report), EN 2002 series (tensile/creep test methods), EN 4050 (ultrasonic inspection), EN ISO 6892‑1 (tensile testing).
• Also references aerospace industry documents (AMS, ASTM) where applicable.

Keywords: EN 4700‑006:2025, aerospace forging standard, pre‑production forgings, production forgings, steel and heat‑resisting alloys, forging qualification, process control testing, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2026
Aeronavtika - Jeklo in zlitine, odporne proti vročini - Gneteni izdelki - Tehnična
specifikacija - 006. del: Vzorci in izkovki za proizvodnjo
Aerospace series - Steel and heat-resisting alloys - Wrought products - Technical
specification - Part 006: Pre-production and production forgings
Luft- und Raumfahrt - Stahl und Hochwarmfesten Legierungen - Umgeformte
Erzeugnisse - Technische Lieferbedingungen - Teil 006: Ausfallmuster und
Serienschmiedestücke
Série aérospatiale - Aciers et alliages résistant à chaud - Produits corroyés -
Spécification technique - Partie 006 : Pièces types et pièces de série
Ta slovenski standard je istoveten z: EN 4700-006:2025
ICS:
49.025.10 Jekla Steels
77.140.85 Železni in jekleni kovani Iron and steel forgings
izdelki
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4700-006
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 49.025.10 Supersedes EN 4700-006:2010
English Version
Aerospace series - Steel and heat-resisting alloys for
wrought products - Technical specification - Part 006: Pre-
production and production forgings
Série aérospatiale - Acier et alliages résistant à chaud Luft- und Raumfahrt - Stahl und Hochwarmfesten
pour les produits corroyés - Spécification technique - Legierungen - Umgeformte Erzeugnisse - Technische
Partie 006 : Pièces types et pièces de série Lieferbedingungen - Teil 006: Ausfallmuster und
Serienschmiedestücke
This European Standard was approved by CEN on 8 September 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4700-006:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 7
4 Wording of order . 7
5 Health and safety . 7
6 Technical requirements . 8
6.1 General. 8
6.2 Qualification requirements . 8
6.3 Re-qualification requirements. 8
6.4 Release requirements . 8
6.5 Process control testing (procedure X) . 9
6.6 Retests . 9
6.7 Special tests . 10
6.8 Capability clause . 10
6.9 Statistical process control. 10
6.10 Inspection and test report . 10
6.11 Traceability . 11
7 Requirements . 11
Bibliography . 33

European foreword
This document (EN 4700-006:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by June 2026, and conflicting national standards shall be withdrawn at
the latest by June 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 4700-006:2010.
EN 4700-006:2010:
 update of Clause 2 “Normative references”;
 Table 2: addition of a note in line 17 and addition of ASTM E340 and ASTM E381 for steels in
line 51.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Introduction
This document is part of the series of EN metallic material standards for aerospace applications.
The general organization of this series is described in EN 4258.
1 Scope
This document specifies the requirements for the ordering, manufacture, testing, inspection and
delivery of pre-production and production forgings in steel and heat-resisting alloys.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2002-001, Aerospace series — Metallic materials — Test methods — Part 001: Tensile testing at
ambient temperature
EN 2002-002, Aerospace series — Metallic materials — Test methods — Part 002: Tensile testing at
elevated temperature
EN 2002-005, Aerospace series — Test methods for metallic materials — Part 005: Uninterrupted creep
and stress-rupture testing
EN 2002-16, Aerospace series — Metallic materials — Test methods — Part 16: Non-destructive
testing — Penetrant testing
EN 2003-002, Aerospace series — Steels — Test methods — Part 002: Izod impact test
EN 2032-001, Aerospace series — Metallic materials — Part 001: Conventional designation
EN 2032-2, Aerospace series — Metallic materials — Part 2: Coding of metallurgical condition in delivery
condition
EN 2078, Aerospace series — Metallic materials — Manufacturing schedule, inspection schedule,
inspection and test report — Definition, general principles, preparation and approval
EN 2950, Aerospace series — Test method — Wrought heat resisting alloys Semi-finished products and
parts — Conditions for macrographic and micrographic examination — Atlas of structures and defects
EN 2951, Aerospace series — Metallic materials — Micrographic determination of content of non-metallic
inclusions
EN 3874, Aerospace series — Test methods for metallic materials — Constant amplitude force-controlled
low cycle fatigue testing
EN 3987, Aerospace series — Test methods for metallic materials — Constant amplitude force-controlled
high cycle fatigue testing
EN 3988, Aerospace series — Test methods for metallic materials — Constant amplitude strain-
controlled low cycle fatigue testing
EN 4050-1, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates,
forging stock and forgings — Part 1: General requirements

Published as ASD-STAN prEN at the date of publication of this document, available at:
https://www.asd-stan.org/.
EN 4050-4, Aerospace series — Test method for metallic materials — Ultrasonic inspection of bars, plates,
forging stock and forgings — Part 4: Acceptance criteria
EN 4258, Aerospace series — Metallic materials — General organization of standardization — Links
between types of European standards and their use
EN 4259:2022, Aerospace series — Metallic materials — Definition of general terms
EN 10027-1, Designation systems for steels — Part 1: Steel names
EN 10079, Definition of steel products
TR 2410, Aerospace series — Metallic materials — Relationship between dimensional standards and
material standards
EN ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method (ISO 148-1)
EN ISO 643, Steels — Micrographic determination of the apparent grain size (ISO 643)
EN ISO 3651-1, Determination of resistance to intergranular corrosion of stainless steels — Part 1:
Austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in nitric acid medium by
measurement of loss in mass (Huey test) (ISO 3651-1)
EN ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2:
Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing
sulfuric acid (ISO 3651-2)
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1)
EN ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (ISO 6508-1)
EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
(ISO 6892-1)
EN ISO 6892-2, Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature
(ISO 6892-2)
AMS 2315, Determination of delta ferrite content
AMS 2750, Pyrometry
ASTM E709, Standard guide for magnetic particle testing
ASTM E1444, Standard practice for magnetic particle testing for aerospace

Published as ASD-STAN TR, available at: https://www.asd-stan.org/.
Published by Society of Automotive Engineers (SAE), available at: https://www.sae.org/.
Published by American Society for Testing and Materials (ASTM International), available at:
https://www.astm.org/.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 4259:2022 and the following
apply. For definitions specific to steel, EN 10079 applies.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
 ISO Online browsing platform: available at https://www.iso.org/obp
 IEC Electropedia: available at https://www.electropedia.org/
3.1
batch
quantity of bars and sections consisting of the same nominal dimensions or having the same heat
treatment condition
Note 1 to entry: For the general case, see EN 4259:2022.
Note 2 to entry: For heat treatment using a continuous furnace, a continuous run of less than or equal to eight
hours (or: ≤ 8 h) may be considered as the same heat treatment charge.
[SOURCE: EN 4259:2022, Table 1, No. 4, modified – Addition of Note 1 to entry]
4 Wording of order
The order shall clearly indicate:
a) quantities to be supplied;
b) dates of delivery;
c) material standard number;
d) delivery condition and metallurgical code of products;
e) dimensions and tolerances or reference to an appropriate dimensional standard;
f) product designation, when required;
g) forwarding address;
h) nature and type of packing, if required;
i) surface protection, if appropriate;
j) definition and frequency of any special tests and their retest procedures, if required.
5 Health and safety
The products in the delivery condition shall fulfil the current health and safety laws of the area of the
country where they are to be delivered.
A product safety data sheet shall be available.
6 Technical requirements
6.1 General
The product shall satisfy the requirements of the order, drawing inspection schedule or material
standard: see Table 2, line 5.
The order, drawing or inspection schedule shall specify the tests to be performed upon (i) pre-forgings
for qualification and/or requalification (ii) serial production forgings for process control testing
(procedure X: see 6.5) and (iii) batch release when cut-up testing or forgings is required. Unless
otherwise specified on the order, drawing or inspection schedule, acceptance criteria for the tests are
stated in the material standard, the requirements for each line of which are detailed in Table 2 and
Table 3 of this document. Table 2 relates to lines 1 to 29 (inclusive) of the material standard and Table 3
relates to lines 30 onwards in which the subline format is also used. If a particular test is needed but not
shown in a specific line in Table 2 and Table 3, the requirement shall be specified on the order, drawing,
inspection schedule or material standard.
6.2 Qualification requirements
See line 100 in Table 3 of this document.
Qualification shall normally comprise assessment of pre-production forgings. See Table 2, sub-line 4.2.
6.3 Re-qualification requirements
Re-qualification of serial production forgings may be required, in the following cases:
a) modification of the drawing;
b) use of forging stock from a different source;
c) modifications to the forging stock form and/or manufacturer route;
d) modifications to an existing die;
e) use of a new (replacement) die;
f) modifications to the forging manufacturing route;
g) when a significant time interval (usually several years) had elapsed between forging campaigns for
a specific part number;
h) when required by the purchaser for any other reason.
Re-qualification testing requirements, especially location of test pieces, shall be identical to those used
for the initial qualification of the pre-production forgings unless otherwise specified on the order,
drawing or inspection schedule.
6.4 Release requirements
Release testing shall be the responsibility of the manufacturer. The sampling procedure for release
testing shall be one of the following, as specified on the order, drawing or inspection schedule. Where
no procedure is specified, procedure A shall be used:
 procedure A: separate forged test samples shall be procedure produced from the same batch of
forging stock as that used to make the serial production forgings. Procedure A may be used
alone unless denoted AX on the drawing, order or inspection schedule in which case it shall be
applied only in conjunction with procedure X (see subclause 6.5);
 procedure B: separate forged heat treatment control test samples shall be prepared which
conform to the same material standard as the production forgings, but from a different batch of
forging stock. Procedure B shall only be used when full heat treatment of the serial production
forgings is carried out by the manufacturer and only in conjunction with procedure X (see
subclause 6.5);
 procedure C: integral test samples shall be removed from each forging. The order, drawing or
inspection schedule shall specify how many test samples shall be tested per batch. Procedure C
may be used alone unless denoted CX on the drawing, order or inspection schedule in which
case it shall be applied only in conjunction with procedure X (see subclause 6.5);
 procedure D: test samples shall be machined from forging(s) selected from each production
batch and at locations specified on the order, drawing or inspection schedule.
When required, the manufacturer shall inform the purchaser of the planned dates for extraction of
samples and release testing in order that these operations may be witnessed.
6.5 Process control testing (procedure X)
Procedure X is a process control procedure consisting of periodic “cut-up” testing to ensure that the
serial production forgings continue to conform to the specified requirements.
If procedure X is invoked by the order, drawing or inspection/manufacturing schedule and/or if
procedures B, AX or CX are used for release tests (see subclause 6.4), forgings shall be selected from
series production at the frequency stated therein. It is recommended that the maximum number of
forgings manufactured between repeat “cut-up” testing conforming to procedure X shall be as stated in
the following Table 1:
Table 1 — Number of forgings
Mass of forging Number of forgings
kg
≤ 1 ≤ 2 000
1 < mass ≤ 2 ≤ 1 000
2 < mass ≤ 5 ≤ 400
5 < mass ≤ 25 ≤ 200
> 25 As stated on the order, drawing, inspection schedule
The testing requirements, including the location, type and size of test pieces shall be identical to those
used for qualification of the pre-production.
6.6 Retests
Retests shall be required if the specified acceptance criteria are not fully met during qualification
testing on pre-production forgings, process control testing (procedure X) or batch release testing.
If the test procedure or test piece preparation is faulty, testing shall be re-applied at the original
frequency after rectification of the original cause of failure. At least one of the retests shall be on
forgings from which the unsatisfactory result was obtained (unless already rejected by the
manufacturer after suitable identification of the cause of failure). If insufficient material remains, the
purchaser shall advise as to how to proceed.
If all retest results fulfil the specified acceptance criteria, the pre-production forging
qualification/process control test (procedure X) shall be deemed satisfactory or the batch shall be
accepted, as appropriate.
If one or more retest results fail to fulfil the specified acceptance criteria, the following actions shall
be taken:
a) for qualification testing of pre-production forgings, advice shall be sought from the purchaser as to
whether the retest results are acceptable for that part of the forging. If so, this shall be denoted by a
note on the drawing, together with values which are acceptable for that location. Alternatively, if it
is essential that the specified acceptance criteria are achieved at all locations, the purchaser may
request modifications to be made to the manufacturer route;
b) for process control testing (procedure X), the tests shall be repeated on a second forging taken as
close as possible to the above in the production sequence and/or and extensive review shall be
made of the manufacturing records of forgings made since the previous control tests. Serial
production of the forging in question (and others if appropriate/deemed necessary) shall not
continue until the cause of the unsatisfactory values has been ascertained and rectified);
c) for batch release testing, the batch shall be either:
 rejected, or
 partially of fully re-heat treated if it is believed that re-heat treatment can rectify the cause of
the failure and then tested as a completely new batch from which the conforming products
shall be accepted. The re-heat treatment shall be stated on the inspection and test report.
No products or test sample shall be re-heat treated more than once.
6.7 Special tests
Special tests and/or inspections may be required by the purchaser. In such cases, the nature of the test,
method, frequency and technical requirements shall be specified on the order, drawing or inspection
schedule and shall be mutually agreed by the manufacturer and purchaser.
6.8 Capability clause
The capability clause normally applies only to forgings of suitable size and configuration during process
control testing (procedure X) and/or batch release testing when invoking procedure D. The number of
batches after which sufficient statistical evidence is deemed to justify cessation of testing for a
particular property (or reduced frequency of testing) shall be mutually agreed between the
manufacturer and purchaser. However, this in no way reduces, the obligations of the manufacturer to
fulfil the requirements. If subsequent testing indicates that the product does not comply with the
requirements, the batch shall be rejected.
6.9 Statistical process control
Reduction in the extent of release testing, other than that specified in subclause 6.7 above may be
negotiated with the purchaser on the basis of appropriate statistical process control and/or
statistical data.
6.10 Inspection and test report
The manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078
stating the following:
a) manufacturer's name and address;
b) order number;
c) drawing and/or part number;
d) material standard number;
e) delivery condition and metallurgical code of the product;
f) quantity of forgings;
g) cast and batch number;
h) batch and/or test samples heat treatment, if appropriate;
i) results of all tests, retests and chemical analyses.
6.11 Traceability
Each product shall be traceable to the cast, production batch and/or heat treatment batch at all stages
of manufacture, testing and delivery.
7 Requirements
Requirements are given in Table 2 and Table 3.
Table 2 — Technical requirements for lines 1 to 29, where appropriate
Material standard line
Requirements Frequency of testing
reference
Qualification Release
No. Title
1 Material designation EN 2032-001 and EN 10027-1 if applicable — —
The chemical composition of the alloy shall comply with requirements of the material a) 1 per cast in a) 1 per cast in
2 Chemical composition
standard. the case of air the case of air
melted or melted or
The test samples used for chemical analysis shall be representative of the melt.
vacuum vacuum
The method of analysis shall be at the option of the manufacturer, but in cases of dispute, the
induction induction
reference method set out in the relevant EN or ISO standard shall be used. If no EN or ISO
melted melted
standard exists, a fundamental and agreed method of chemical analysis calibrated against
product product
accepted reference standards shall be used.
b) 1 per VAR b) 1 per VAR or
In the case of remelted material, samples shall be normally taken from positions as follows:
ingot or 2 per ESR ingot
a) vacuum arc remelted (VAR) ingots: the bottom of each ingot or ingot product;
ESR ingot
b) electroflux or electroslag remelted (ESR) ingots: the top and bottom ends of each ingot or
representing
ingot product.
top and
An analysis shall be made of each sample and certificates of analysis shall be supplied to the
bottom
purchaser. The elements to be determined shall be as required by the material specification or
positions
as agreed between the manufacturer and the purchaser.
Elements not quoted in the material standard shall not be intentionally added to the alloy
without the agreement of the purchaser, except for the purpose of finishing the heat (e.g.
addition of deoxidant); reasonable precautions shall be taken to prevent their inclusion during
manufacture. The purchaser, in agreement with the manufacturer, may set a limit to the
amount of one or more such elements and may require the amount of such elements to be
stated in the certificate of analysis.
The specified ranges of chemical composition are based on cast analyses. Any subsequent
analytical checks shall take into consideration the heterogeneity normal to the alloy.
Additionally for remelted products, the samples shall be representative for the remelted ingot,
taking into account any macro segregation.
The test samples used for chemical analysis shall be representative of the product and shall be
taken from location corresponding to top and bottom of each ingot produced after the final
melting stage. The method of chemical analysis shall be at the discretion of the manufacturer
unless otherwise stated in the material standard or order. In cases of dispute, the method of
chemical analysis shall be agreed between the manufacturer and purchaser preferably using
existing chemical analysis standards. The measured chemical composition shall be stated on
the certificate of conformance.
Material standard line
Requirements Frequency of testing
reference
Qualification Release
No. Title
3 Method of melting 1 General — —
The alloy shall be made by the process required by the material standard, unless otherwise
agreed between the manufacturer and purchaser. If the material standard permits alternative
processes, the manufacturer shall decide which of them shall be used unless the purchaser
states a particular preference on his order. In all instances, the process by which the alloy was
made shall be indicated on the release note.
2 Consumable electrode remelted material
2.1 Except as provided in 2.3 or 2.4 at no time during remelting shall material of any other
composition or type be introduced into the melting chamber, i.e. starter material and
electrode stub-ends shall be of the same composition as the material being remelted.
2.2 Whenever possible and except as provided in 2.3, weld material used to join electrodes
together and to join the electrode to the stub-end shall be of the same composition as the
material being remelted. If such weld material is not obtainable, material of a similar
composition to, or compatible with, the material being remelted may be used at the discretion
of the manufacturer, unless the purchaser indicates that his prior agreement is required.
2.3 Alternatively to 2.1 and 2.2, for electro-flux and vacuum arc remelting, the stub and any
weld material may be different from that being remelted, provided that the remelted material
is not contaminated with material from the stub-ends or weld and that, for vacuum arc
remelting, the stub welding takes place outside the furnace. Remelting shall be terminat
...