Petroleum and natural gas industries - Drilling and production equipment - Drill-through equipment (ISO 13533:2001)

Erdöl- und Erdgasindustrie - Bohr- und Fördereinrichtungen - Drill-through equipment (ISO 13533:2001)

Diese Internationale Norm enthält Festlegungen für die Anforderungen an in der Erdöl- und Erdgasindustrie eingesetztes Drill-through-Equipment im Hinblick auf Betriebsverhalten, Konstruktion, Werkstoffe, Prüfung und Kontrolle, Schweißen, Kennzeichnen, Handhabung, Lagerung und Versand. Weiterhin enthalten sind Definitionen der Betriebsbedingungen hinsichtlich Druck, Temperatur und Bohrlochflüssigkeiten, für die die Ausrüstungen ausgelegt sind.
Diese Internationale Norm gilt und stellt Anforderungen auf für die folgenden speziellen Ausrüstungen:
a) Backenpreventer;
b) Backenklötze, -packer und -kopfdichtungen;
c) Ringpreventer;
d) Ringpackungssätze;
e) hydraulische Anschlussstücke;
f) Preventerzwischenflansche;
g) Übergangsstücke;
h) Einzelverbindungen;
i) Klemmen.
Die Austauschbarkeit im Hinblick auf die Maße ist auf die End- und Auslassanschlüsse beschränkt.
Übliche Ausrüstungen, wie sie in dieser Internationalen Norm definiert werden, sind in Bild 1 und Bild 2 dargestellt; Empfehlungen für Ausfallprotokolle werden in Anhang F gegeben.
Diese Internationale Norm gilt nicht für den Feldeinsatz oder für Einsatzprüfungen von Drill-through-Equipment.

Industries du pétrole et du gaz naturel - Equipements de forage et de production - Equipements a travers lesquels s'effectue le forage (ISO 13533:2001)

Industrija za predelavo nafte in zemeljskega plina - Vrtalna in proizvodna oprema - Oprema za prevrtavanje (ISO 13533:2001)

General Information

Status
Published
Publication Date
30-Apr-2004
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2004
Due Date
01-May-2004
Completion Date
01-May-2004

RELATIONS

Buy Standard

Standard
SIST EN ISO 13533:2004
English language
109 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN ISO 13533:2004
01-maj-2004

Industrija za predelavo nafte in zemeljskega plina - Vrtalna in proizvodna oprema -

Oprema za prevrtavanje (ISO 13533:2001)

Petroleum and natural gas industries - Drilling and production equipment - Drill-through

equipment (ISO 13533:2001)

Erdöl- und Erdgasindustrie - Bohr- und Fördereinrichtungen - Drill-through equipment

(ISO 13533:2001)

Industries du pétrole et du gaz naturel - Equipements de forage et de production -

Equipements a travers lesquels s'effectue le forage (ISO 13533:2001)
Ta slovenski standard je istoveten z: EN ISO 13533:2001
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 13533:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 13533:2004
---------------------- Page: 2 ----------------------
SIST EN ISO 13533:2004
EUROPEAN STANDARD
EN ISO 13533
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2001
ICS 75.180.10
English version
Petroleum and natural gas industries - Drilling and production
equipment - Drill-through equipment (ISO 13533:2001)

Industries du pétrole et du gaz naturel - Equipements de Erdöl- und Erdgasindustrie - Bohr- und Fördereinrichtungen

forage et de production - Equipements à travers lesquels - Drill-through equipment (ISO 13533:2001)

s'effectue le forage (ISO 13533:2001)
This European Standard was approved by CEN on 17 November 2001.

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 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 Management Centre has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,

Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13533:2001 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 13533:2004
EN ISO 13533:2001 (E)
CORRECTED 2002-09-25
Foreword

This document (EN ISO 13533:2001) has been prepared by Technical Committee ISO/TC 67

"Materials, equipment and offshore structures for petroleum and natural gas industries" in

collaboration with Technical Committee CEN/TC 12 "Materials, equipment and offshore

structures for petroleum and natural gas industries", the secretariat of which is held by

AFNOR.

This European Standard shall be given the status of a national standard, either by publication

of an identical text or by endorsement, at the latest by June 2002, and conflicting national

standards shall be withdrawn at the latest by June 2002.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of

the following countries are bound to implement this European Standard: Austria, Belgium,

Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United

Kingdom.
Endorsement notice

The text of ISO 13533:2001 has been approved by CEN as EN ISO 13533:2001 without any

modifications.

NOTE Normative references to International Standards are listed in Annex ZA (normative).

---------------------- Page: 4 ----------------------
SIST EN ISO 13533:2004
EN ISO 13533:2001 (E)
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications

This European Standard incorporates by dated or undated reference, provisions from other

publications. These normative references are cited at the appropriate places in the text and the

publications are listed hereafter. For dated references, subsequent amendments to or revisions

of any of these publications apply to this European Standard only when incorporated in it by

amendment or revision. For undated references the latest edition of the publication referred to

applies (including amendments).

NOTE Where an International Publication has been modified by common modifications,

indicated by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 6506-1 1999 Metallic materials - Brinell hardness test - EN ISO 6506-1 1999
Part 1: Test method
ISO 6507-1 1997 Metallic materials - Vickers hardness test EN ISO 6507-1 1997
- Part 1: Test method
ISO 6508-1 1999 Metallic materials - Rockwell hardness EN ISO 6508-1 1999
test - Part 1: Test method (scales A, B,
C, D, E, F, G, H, K, N, T)
ISO 10423 2001 Petroleum and natural gas industries - EN ISO 10423 2001
Drilling and production equipment -
Wellhead and christmas tree equipment
ISO 11961 1996 Petroleum and natural gas industries - EN ISO 11961 1996
Steel pipes for use as drill pipe -
Specification
---------------------- Page: 5 ----------------------
SIST EN ISO 13533:2004
---------------------- Page: 6 ----------------------
SIST EN ISO 13533:2004
INTERNATIONAL ISO
STANDARD 13533
First edition
2001-12-01
Petroleum and natural gas industries —
Drilling and production equipment — Drill-
through equipment
Industries du pétrole et du gas naturel — Équipements de forage et de
production — Équipements à travers lesquels s'effectue le forage
Reference number
ISO 13533:2001(E)
ISO 2001
---------------------- Page: 7 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not

be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this

file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this

area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters

were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event

that a problem relating to it is found, please inform the Central Secretariat at the address given below.

© ISO 2001

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic

or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body

in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland
ii © ISO 2001 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
Contents Page

Foreword......................................................................................................................................................................v

Introduction................................................................................................................................................................vi

1 Scope ..............................................................................................................................................................1

2 Normative references....................................................................................................................................4

3 Terms and definitions ...................................................................................................................................5

4 Abbreviated terms .......................................................................................................................................12

5 Design requirements...................................................................................................................................13

5.1 Size designation ..........................................................................................................................................13

5.2 Service conditions.......................................................................................................................................13

5.3 Equipment-specific design requirements.................................................................................................14

5.4 Design methods...........................................................................................................................................31

5.5 Design verification testing..........................................................................................................................33

5.6 Documentation.............................................................................................................................................33

5.7 Tests for BOP and hydraulic connector operational characteristics.....................................................34

5.8 Design temperature verification testing for non-metallic sealing materials and moulded

sealing assemblies......................................................................................................................................38

5.9 Operating manual requirements ................................................................................................................39

6 Material requirements .................................................................................................................................40

6.1 General..........................................................................................................................................................40

6.2 Written specifications .................................................................................................................................40

6.3 Pressure-containing members...................................................................................................................41

7 Welding requirements.................................................................................................................................47

7.1 General..........................................................................................................................................................47

7.2 Weldment design and configuration .........................................................................................................47

7.3 Welding controls..........................................................................................................................................51

7.4 Welding procedure and performance qualifications ...............................................................................52

7.5 Other requirements .....................................................................................................................................53

8 Quality control requirements .....................................................................................................................56

8.1 General..........................................................................................................................................................56

8.2 Measuring and testing equipment .............................................................................................................57

8.3 Quality control personnel qualifications...................................................................................................57

8.4 Quality control requirements for equipment and parts ...........................................................................57

8.5 Quality control requirements for specific equipment and parts ............................................................58

8.6 Requirements for quality control records.................................................................................................70

9 Marking requirements .................................................................................................................................72

9.1 General..........................................................................................................................................................72

9.2 Types of identification stamping ...............................................................................................................72

9.3 Specific codification requirements of equipment ....................................................................................72

9.4 Product description code (PDC) ................................................................................................................75

10 Storing and shipping...................................................................................................................................77

10.1 Storing for periods greater than 30 days ..................................................................................................77

10.2 Shipping........................................................................................................................................................77

Annex A (normative) Qualification of heat-treating equipment..........................................................................78

Annex B (normative) Requirements for repair and remanufacture....................................................................81

Annex C (informative) Operational characteristics test procedure ...................................................................86

© ISO 2001 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)

Annex D (informative) Procedure for design temperature verification testing.................................................94

Annex E (informative) Purchasing guidelines ......................................................................................................98

Annex F (informative) Failure reporting ..............................................................................................................100

Annex G (informative) Conversion of US Customary units to the SI system (metric) ...................................101

Annex H (informative) List of national/regional standards applicable in context...........................................105

Bibliography ............................................................................................................................................................106

iv © ISO 2001 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO

member bodies). The work of preparing International Standards is normally carried out through ISO technical

committees. Each member body interested in a subject for which a technical committee has been established has

the right to be represented on that committee. International organizations, governmental and non-governmental, in

liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical

Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted

by the technical committees are circulated to the member bodies for voting. Publication as an International

Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 13533 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for

petroleum and natural gas industries, Subcommittee SC 4, Drilling and production equipment.

Annexes A and B form a normative part of this International Standard. Annexes C, D, E, F, G and H are for

information only.
© ISO 2001 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
Introduction

This International Standard is based on API Specification 16A, second edition, 1 June 1998.

This International Standard is intended to provide for the availability of safe and functionally interchangeable drill-

through equipment utilized in the petroleum and natural gas industry.

Users of this International Standard should be aware that further or differing requirements may be needed for

individual applications. This International Standard is not intended to inhibit a vendor from offering, or the purchaser

from accepting, alternative equipment or engineering solutions for the individual application. This may be

particularly applicable where there is innovative or developing technology. Where an alternative is offered, the

vendor should identify any variations from this International Standard and provide details.

For the convenience of users of this International Standard, annex H provides a list of those normative International

Standards cited in clause 2 with national or regional standards which have been found mutually applicable in the

context of the requirements in the text. The user may optionally apply the national or regional standard in the

context of the requirement for which the International Standard is cited.
vi © ISO 2001 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 13533:2004
INTERNATIONAL STANDARD ISO 13533:2001(E)
Petroleum and natural gas industries — Drilling and production
equipment — Drill-through equipment
1 Scope

This International Standard specifies requirements for performance, design, materials, testing and inspection,

welding, marking, handling, storing and shipping of drill-through equipment used for drilling for oil and gas. It also

defines service conditions in terms of pressure, temperature and wellbore fluids for which the equipment will be

designed.

This International Standard is applicable to and establishes requirements for the following specific equipment:

a) ram blowout preventers;
b) ram blocks, packers and top seals;
c) annular blowout preventers;
d) annular packing units;
e) hydraulic connectors;
f) drilling spools;
g) adapters;
h) loose connections;
i) clamps.
Dimensional interchangeability is limited to end and outlet connections.

Typical equipment defined by this International Standard is shown in Figures 1 and 2; recommendations for failure

reporting are outlined in annex F.

This International Standard does not apply to field use or field testing of drill-through equipment.

© ISO 2001 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
Key
1 Ring gaskets ISO 10423 7 Wellhead
2 Annular BOP 8 Casing
3 Clamp 9 End and outlet connections
4 Ram BOP 10 Drill-through equipment ISO 13533
5 Drilling spool 11 Wellhead equipment ISO 10423
6 Valve ISO 10423
Figure 1 — Typical surface drill-through equipment
2 © ISO 2001 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
Key
1 Riser connector
2 Flex/ball joint
3 Annular BOP
4 Hydraulic connector
5 Adapter
6 Ram BOP
7 Valve ISO 10423
8 Hydraulic connector
9 Wellhead
10 Riser equipment
11 Drill-through equipment ISO 13533
12 Wellhead equipment ISO 10423
Figure 2 — Typical subsea drill-through equipment
© ISO 2001 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
2 Normative references

The following normative documents contain provisions, which, through reference in this text, constitute provisions

of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these

publications do not apply. However, parties to agreements based on this International Standard are encouraged to

investigate the possibility of applying the most recent editions of the normative documents indicated below. For

undated references, the latest edition of the normative document referred to applies. Members of IEC and

ISO maintain registers of currently valid International Standards.

ISO 2859-1:1989, Sampling procedures for inspection by attributes — Part 1: Sampling plans indexed by

acceptable quality level (AQL) for lot-by-lot inspection
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method

ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (scales A, B, C, D, E, F, G, H, K,

N, T)
ISO 6892, Metallic materials — Tensile testing at ambient temperature

ISO 10423:2001, Petroleum and natural gas industries — Drilling and production equipment — Wellhead and

christmas tree equipment

ISO 11961:1996, Petroleum and natural gas industries — Steel pipes for use as drill pipe — Specification

ISO 13665, Seamless and welded steel tubes for pressure purposes — Magnetic particle inspection of the tube

body for the detection of surface imperfections
API Bulletin 6AF, Capabilities of API flanges under combinations of load

ASME Boiler and Pressure Vessel Code Section V, Article 5, UT Examination Methods for Materials and

Fabrication

ASME Boiler and Pressure Vessel Code Section VIII, Division 1, Appendix 4, Rounded Indication Charts

Acceptance Standard for Radiographically Determined Rounded Indications in Welds

ASME Boiler and Pressure Vessel Code Section VIII, Division 2, Pressure Vessel — Alternate Rules, Appendix 4,

Design Based on Stress Analysis

ASME Boiler and Pressure Vessel Code Section VIII, Division 2, Pressure Vessel — Alternate Rules, Appendix 6,

Experimental Stress Analysis
ASME Boiler and Pressure Vessel Code Section IX, Articles I, II, III and IV

ASTM A 193:1999, Specification for Alloy Steel and Stainless Steel Bolting Materials for High Temperature Service

ASTM A 320:1999, Specification for Alloy Steel Bolting Materials for Low Temperature Service

ASTM A 370:1997, Test Methods and Definitions for Mechanical Testing of Steel Products

ASTM A 453:1999, Specification for Bolting Materials, High Temperature, 50 to 120 ksi Yield Strength, with

Expansion Coefficients Comparable to Austenitic Steels
ASTM D 395:1998, Standard Test Methods for Rubber Property — Compression Set

ASTM D 412:1998, Test Methods for Vulcanized Rubber, Thermoplastic Rubbers and Thermoplastic Elastomers

ASTM D 471:1998, Standard Test Method for Rubber Property — Effect of Liquids
4 © ISO 2001 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
ASTM D 1414:1994, Standard Test Methods for Rubber O-Rings

ASTM D 1415:1994, Standard Test Method for Rubber Property — International Hardness

ASTM D 1418:1999, Standard Practice for Rubber and Rubber Lattices — Nomenclature

ASTM D 2240:1997, Test Method for Rubber Property — Durometer Hardness
ASTM E 94:1993, Standard Guide for Radiographic Testing
ASTM E 140:1999, Hardness Conversion Tables for Metals
ASTM E 165:1995, Standard Test Method for Liquid Penetrant Examination

ASTM E 569:1997, Standard Practice for Acoustic Emission Monitoring of Structures During Controlled Simulation

ASTM E 747:1997, Standard Practice for Design, Manufacture, and Material Grouping Classification of Wire Image

Quality Indicators (IQI) used for Radiography

ASNT-SNT-TC-1A:1992, Recommended Practice for Personnel Qualification and Certification in Nondestructive

Testing

NACE MR0175–2000, Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment

SAE AMS-H-6875A:1998, Heat Treatment of Steel Raw Materials
3 Terms and definitions

For the purpose of this International Standard, the following terms and definitions apply.

3.1
acceptance criteria
defined limits placed on characteristics of materials, products or service
3.2
adapter

pressure-containing piece of equipment having end connections of different nominal size designation and/or

pressure rating
3.3
annular blowout preventer

blowout preventer that uses a shaped elastomeric sealing element to seal the space between the tubular and the

wellbore or an open hole
3.4
blind connection

end or outlet connection with no centre bore, used to completely close off a connection

3.5
blind-shear ram

closing and sealing component in a ram blowout preventer that first shears the tubular in the wellbore and then

seals off the bore or acts as a blind ram if there is no tubular in the wellbore
3.6
blind ram

closing and sealing component in a ram blowout preventer that seals the open wellbore

© ISO 2001 – All rights reserved 5
---------------------- Page: 17 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
3.7
blowout preventer
BOP

equipment (or valve) installed at the wellhead to contain wellbore pressure either in the annular space between the

casing and the tubulars or in an open hole during drilling, completion, testing or workover operations

3.8
body

any portion of equipment between end connections, with or without internal parts, which contains wellbore pressure

3.9
bolting
threaded fasteners used to join end or outlet connections
3.10
calibration
comparison and adjustment to a standard of known accuracy
3.11
cast, verb
pour molten metal into a mould to produce an object of desired shape
3.12
casting, noun

object at or near finished shape obtained by solidification of a substance in a mould

3.13
chemical analysis
determination of the chemical composition of material
3.14
clamp, noun
device with internal angled shoulders used to fasten mating hubs
3.15
clamping load
axial load applied to clamp hubs by the clamp due to bolt tightening
3.16
closure bolting

threaded fasteners used to assemble pressure-containing parts other than end and outlet connections

3.17
conformance
compliance with specified requirements in every detail
3.18
corrosion-resistant ring groove
ring groove lined with metal resistant to metal-loss corrosion
3.19
critical component
part having requirements specified in this International Standard
3.20
data acquisition system
system for storing and/or providing permanent copies of test information
EXAMPLES Strip chart recorders, circular chart recorders or computer systems.
6 © ISO 2001 – All rights reserved
---------------------- Page: 18 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
3.21
date of manufacture
date of the manufacturer's final acceptance of finished equipment
3.22
drilling spool

pressure-containing piece of equipment having end connections, used below or between drill-through equipment

NOTE When outlet connections are provided, they shall be manufactured in accordance with this International Standard.

3.23
end connection

flange (studded or open-face), hub connection or other end connection (3.47) used to join together equipment

and integral to that equipment
3.24
equipment

any single completed unit that can be used for its intended purpose without further processing or assembly

3.25
fabrication weld
weld joining two or more parts
3.26
flange

protruding rim, with holes to accept bolts and having a sealing mechanism, used to join pressure-containing

equipment together by bolting to another flange
3.27
forge, verb

plastically deform metal, usually hot, into desired shapes with compressive force, with open or closed dies

3.28
forging, noun
shaped metal part formed by the forging method
3.29
full-penetration weld
weld that extends throughout the complete wall section of the parts joined
3.30
gasket-seating load

that portion of the clamping load required to seat the gasket and bring the hub faces into contact

3.31
gasket-retaining load

that portion of the clamping load required to offset the separating force the gasket exerts on the hubs when

pressurized
3.32
heat-affected zone
HAZ

that portion of the base metal which has not been melted, but whose mechanical properties or microstructure has

been altered by the heat of welding or cutting
3.33
heat
cast lot
material originating from a final melt

NOTE For remelted alloys, a heat is defined as the raw material originating from a single remelted ingot.

© ISO 2001 – All rights reserved 7
---------------------- Page: 19 ----------------------
SIST EN ISO 13533:2004
ISO 13533:2001(E)
3.34
heat treatment
heat treating
alternate step
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.