ISO 7209:2023

Titanium and titanium alloys - Plate, sheet and strip - Technical delivery conditions

This document specifies requirements for the manufacture and technical delivery conditions of plate, sheet and strip made from titanium and titanium alloys.

Titane et alliages de titane — Tôle, bande et tôle épaisse — Conditions techniques de livraison

General Information

• Status: Published
• Publication Date: 26-Jan-2023
• ICS: 77.120.50 - Titanium and titanium alloys
• Technical Committee: ISO/TC 79/SC 11 - Titanium
• Drafting Committee: ISO/TC 79/SC 11 - Titanium
• Current Stage: 9093 - International Standard confirmed
• Start Date: 24-Aug-2023
• Completion Date: 13-Dec-2025

Relations

• Amended By: ISO 7209:2023/Amd 1:2024 - Titanium and titanium alloys - Plate, sheet and strip - Technical delivery conditions - Amendment 1: Effective utilization of ISO 23515 specifying the designation of chemical composition
• Effective Date: 26-Aug-2023

Overview

ISO 7209:2023 - Titanium and titanium alloys - Plate, sheet and strip - Technical delivery conditions defines the requirements for manufacture and delivery of flat-rolled titanium products. It standardizes the technical delivery conditions for plate, sheet and strip made from titanium and titanium alloys to support consistent quality, commerce and conformity across international markets.

The standard:

• Specifies scope and purchaser information requirements
• Defines product types (plate, sheet, strip) and their dimensional ranges
• Covers manufacturing routes, chemical composition, mechanical properties, tolerances, surface condition and inspection/ certification requirements

Keywords: ISO 7209:2023, titanium plate sheet strip, technical delivery conditions, titanium alloys, mill product certificate.

Key Topics and Technical Requirements

• Product definitions:
  • Plate - flat-rolled product with uniform thickness over 5 mm.
  • Sheet - uniform thickness over 0.20 mm up to and including 5 mm.
  • Strip - flat-rolled product over 0.20 mm, normally supplied in coils.
• Information to be supplied by the purchaser: quantity, designation, dimensions, packaging, inspection, mill product certificate and any certification requirements. A set of optional requirements (restrictive chemistry, product analysis, special mechanical properties, special tolerances, manufacturing method/finish) can be specified at order stage.
• Manufacturing: products are made by hot-working or hot-rolling of ingot/intermediate product, with appropriate cold-rolling, surface conditioning and heat treatment; supplied as solid wrought product in straight lengths or coils.
• Chemical composition: limits and reporting requirements for alloying and residual elements; guidance on which “other elements” to report (e.g., >0.1 % each or >0.4 % total). Chemical analysis methods and referee methods include ASTM E2371, ASTM E539, ASTM E1409 and relevant ISO methods.
• Mechanical properties and tests: tensile properties, bend tests and sampling/test-piece procedures are specified (references include ISO 6892-1 and ISO 7438).
• Dimensional tolerances and surface condition: thickness, width, length, flatness, straightness tolerances plus surface imperfections, non-destructive testing and acceptance/rejection criteria.
• Inspection, marking and documentation: types of inspection documents, mill product certificate requirements, marking and packaging rules and certification options.

Practical Applications and Users

ISO 7209:2023 is used by:

• Titanium mill and sheet manufacturers for production and quality control
• Procurement and specification engineers to define purchase orders and contract terms
• Quality assurance, inspection and testing laboratories to verify compliance (chemical, mechanical, NDT)
• Aerospace, medical, chemical processing, marine and other industries specifying titanium plate, sheet or strip where consistent material delivery conditions are critical

Benefits: harmonized material specifications, clearer purchaser–manufacturer communication, reliable mill certificates and streamlined conformity assessment.

Related Standards

Key referenced documents include ISO 377, ISO 6892-1, ISO 7438, ISO 10474, ISO 28401 and ASTM methods such as ASTM E8/E8M, ASTM E2371, ASTM E539 and ASTM E1409. These provide complementary test methods, sampling rules and terminology used by ISO 7209:2023.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 7209
First edition
2023-01
Titanium and titanium alloys — Plate,
sheet and strip — Technical delivery
conditions
Titane et alliages de titane — Tôle, bande et tôle épaisse —
Conditions techniques de livraison
Reference number
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Information to be supplied by the purchaser . 2
4.1 General information. 2
4.2 Options. 2
5 Manufacturing . 3
6 Requirements . 3
6.1 General . 3
6.2 Chemical composition . 3
6.3 Tensile properties . 6
6.4 Bend test . 7
6.5 Dimensional tolerance . 8
6.5.1 Tolerance of thickness . 8
6.5.2 Tolerance of width . 10
6.5.3 Tolerance of length . 11
6.5.4 Tolerance of flatness .12
6.5.5 Tolerance of straightness . 13
6.6 Surface conditions, imperfections and defects . 13
6.6.1 General .13
6.6.2 Non-destructive inspection . 14
7 Inspection .14
7.1 Types of inspection and inspection documents . 14
7.2 Specific inspection . 15
7.2.1 General .15
7.2.2 Samples and test pieces for chemical composition and mechanical testing
for product analysis . 15
8 Rounding-off procedure.16
9 Reference test and analysis .16
10 Rejection .16
11 Marking . .16
11.1 General . 16
11.2 Products marking . 16
12 Packaging.17
13 Mill product certificate .17
14 Certification .17
Bibliography .18
iii
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys,
Subcommittee SC 11, Titanium.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document was developed in response to worldwide demand for stabilizing the quality assurance
for titanium and titanium alloys by common regulations worldwide.
Determining condition concerning the technical delivery conditions for plate, sheet and strip of titanium
and titanium alloys, such as chemical composition, mechanical properties and dimensional tolerance,
is extremely important to promote commerce of titanium and titanium alloys products in the global
market.
The International Organization for Standardization (ISO) draws attention to the fact that it is claimed
that compliance with this document may involve the use of patents concerning titanium alloys given in
Table 1, Table 2 and Table 3.
ISO takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured ISO that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In
this respect, the statement of the holder of this patent right is registered with ISO. Information may be
obtained from the patent database available at www.iso.org/patents.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those in the patent database. ISO shall not be held responsible for identifying
any or all such patent rights.
v
INTERNATIONAL STANDARD ISO 7209:2023(E)
Titanium and titanium alloys — Plate, sheet and strip —
Technical delivery conditions
1 Scope
This document specifies requirements for the manufacture and technical delivery conditions of plate,
sheet and strip made from titanium and titanium 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.
ISO 377, Steel and steel products — Location and preparation of samples and test pieces for mechanical
testing
ISO 6892-1:2019, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 7438:2020, Metallic materials — Bend test
ISO 10474:2013, Steel and steel products — Inspection documents
ISO 11484, Steel products — Employer's qualification system for non-destructive testing (NDT) personnel
ISO 28401, Light metals and their alloys — Titanium and titanium alloys — Classification and terminology
ASTM E8/E8M, Standard Test Methods for Tension Testing of Metallic Materials
ASTM E29, Practice for Using Significant Digits in test Data to Determine Conformance with Specifications
ASTM E539, Standard Test Method for Analysis of Titanium Alloys by Wavelength Dispersive X-Ray
Fluorescence Spectrometry
ASTM E1409, Test method for determination of oxygen and nitrogen in titanium and titanium alloys by the
inert gas fusion technique
ASTM E1447, Test method for determination of hydrogen in titanium and titanium alloys by the inert gas
fusion thermal conductivity/ Infrared detection method
ASTM E1941, Standard Test method for determination of Carbon in Refractory and Reactive Metals and
Their Alloys by Combustion Analysis
ASTM E2371, Standard Test method for Analysis of Titanium and Titanium alloys by Direct Current Plasma
and Inductively Coupled Plasma Atomic Emission Spectrometry (Performance-Based Test Methodology)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 28401 and the following apply.
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
plate
flat-rolled product of rectangular cross-section with uniform thickness over 5 mm, supplied in straight
lengths (i.e. flat) usually with sheared, sawn or flame-cut/plasma-cut edges or water jet cutting
Note 1 to entry: The thickness does not exceed one-tenth of the width.
3.2
sheet
flat-rolled product of rectangular cross-section with uniform thickness over 0,20 mm and up to and
including 5 mm inclusive, supplied in straight lengths (i.e. flat) usually with sheared or sawn edges or
water jet cutting
Note 1 to entry: The thickness does not exceed one-tenth of the width.
3.3
strip
flat-rolled product of rectangular cross-section with uniform thickness over 0,20 mm, supplied in coils
usually with slit edges
Note 1 to entry: The thickness does not exceed one-tenth of the width.
Note 2 to entry: In some English-speaking countries, “strip” is called “coiled sheet”.
4 Information to be supplied by the purchaser
4.1 General information
The purchase order shall include the following information:
a) quantity (e.g. total mass or total length);
b) designation;
c) dimensions;
d) packaging;
e) inspection (including the type of test piece subjected to tensile testing);
f) mill product certificate;
g) certification (document issued and/or validated by an independent third party that assures that a
product meets specified requirements such as a purchase order).
4.2 Options
A number of options are specified in this document and listed below. If the purchaser does not indicate
a wish to implement any of these options at the time of enquiry and order, the plate or sheet or strip
shall be supplied in accordance with the basic specification.
a) restrictive chemistry (see 6.2);
b) product analysis (see 6.2);
c) special mechanical properties (see 6.3);
d) special tolerance (see 6.5);
e) method of manufacture and finish (see Clause 5 and 6.6).
5 Manufacturing
The plate, sheet and strip shall be manufactured by hot-working or hot-rolling of ingot or intermediate
product followed by appropriate cold-rolling, if necessary, and surface conditioning and heat treatment.
The plate, sheet and strip shall be supplied as solid wrought product with uniform cross-section in
straight shape or in coiled form.
6 Requirements
6.1 General
When supplied in the delivery condition indicated in 4.1 and inspected in accordance with Clause 7, the
plate, sheet and strip shall conform to the requirements of this document.
6.2 Chemical composition
The plate, sheet and strip of titanium and titanium alloys shall conform to the chemical requirements
prescribed in Table 1.
The elements listed in Table 1 are either intentional alloy additions or elements that are inherent to the
manufacture of titanium sponge, ingot or mill product.
The content of any element intentionally added to the formulation of heat shall be reported.
Other elements are those not specified in the relevant designated material such as Cr and Mo of Ti1-
0,18Pd and those not originally specified in the Table 1 such as Co and Hf. Generally, other elements
include aluminium, vanadium, tin, molybdenum, chromium, manganese, zirconium, nickel, copper,
silicon, cobalt, tungsten, hafnium and yttrium except for alloying elements contained in the designation.
The element which is taken as the other element shall be subjected to the agreement between the
purchaser and the manufacturer, and shall be noted in the purchase order.
Other elements should not be reported unless the content is greater than 0,1 % for each, or 0,4 % for
total. The content of yttrium should not be reported unless the content is greater than 0,005 % for each.
When agreed upon between the manufacturer and the purchaser and specified in the purchase order,
other specific residual elements not listed in Table 1 may be added and their content shall be reported.
The chemical analysis shall be conducted by the standard techniques normally used by the manufacturer
and the purchaser. In case of disagreement, the test methods defined in ASTM E2371 or ASTM E539
shall be used as the referee method except for carbon, oxygen, and hydrogen, which are not covered
in these standards. The test methods defined in ISO 22960, ISO 22961 or ISO 22962 may be used as
the referee method for iron instead of ASTM E2371 or ASTM E539. The test method defined in ASTM
E1409 shall be used as a referee method for oxygen and nitrogen, and ISO 22963 may be used as a
referee method for oxygen. The test method defined in ASTM E1447 shall be used as a referee method
for hydrogen and the test method defined in ASTM E1941 shall be used as a referee method for carbon.
Table 1 — Chemical composition
Chemical composition in % mass fraction
Other ele-
H
Fe
ments max
Designation C max O max N max Al V Pd Ru Ni Mo Cr Co Sn
max
max
single total
Ti1 0,08 0,18 0,03 0,015 0,20 0,1 0,4
Ti1H 0,08 0,18 0,03 0,015 0,20 0,1 0,4
Ti2L 0,08 0,20 0,03 0,015 0,25 0,1 0,4
Ti2 0,08 0,25 0,03 0,015 0,30 0,1 0,4
Ti3 0,08 0,35 0,05 0,015 0,30 0,1 0,4
Ti3H 0,08 0,35 0,05 0,015 0,30 0,1 0,4
Ti4 0,08 0,40 0,05 0,015 0,50 0,1 0,4
0,12-
Ti1-0,18Pd 0,08 0,18 0,03 0,015 0,20 0,1 0,4
0,25
0,12-
Ti1H-0,18Pd 0,08 0,18 0,03 0,013 0,20 0,1 0,4
0,25
0,12-
Ti2L-0,18Pd 0,08 0,20 0,03 0,015 0,25 0,1 0,4
0,25
0,12-
Ti2-0,18Pd 0,08 0,25 0,03 0,015 0,30 0,1 0,4
0,25
0,12-
Ti3H-0,018Pd 0,08 0,35 0,05 0,015 0,30 0,1 0,4
0,25
0,04-
Ti1-0,06Pd 0,08 0,18 0,03 0,015 0,20 0,1 0,4
0,08
0,04-
Ti1H-0,06Pd 0,08 0,18 0,03 0,013 0,20 0,1 0,4
0,08
0,04-
Ti2L-0,06Pd 0,08 0,20 0,03 0,015 0,25 0,1 0,4
0,08
0,04-
Ti2-0,06Pd 0,08 0,25 0,03 0,015 0,30 0,1 0,4
0,08
0,2-
Ti2-0,75Ni-0,3Mo 0,08 0,25 0,03 0,015 0,30 0,6-0,9 0,1 0,4
0,4
0,04-
Ti1L-0,5N-0,05Ru 0,08 0,10 0,03 0,015 0,20 0,4-0,6 0,1 0,4
0,06
Table 1 (continued)
Other ele-
H
Fe
ments max
Designation C max O max N max Al V Pd Ru Ni Mo Cr Co Sn
max
max
single total
0,04-
Ti2L-0,5Ni-0,05Ru 0,08 0,15 0,03 0,015 0,30 0,4-0,6 0,1 0,4
0,06
0,04-
Ti2-0,5Ni-0,05Ru 0,08 0,25 0,05 0,015 0,30 0,4-0,6 0,1 0,4
0,06
0,04-
Ti2-0,5Co-0,06Pd 0,08 0,25 0,03 0,015 0,30 0,2-0,8 0,1 0,4
0,08
0,04-
Ti3-0,5Co-0,06Pd 0,08 0,35 0,05 0,015 0,30 0,2-0,8 0,1 0,4
0,08
Ti2-0,45Ni-0,15Cr- 0,01- 0,02- 0,35- 0,1-
0,08 0,25 0,03 0,015 0,30 0,1 0,4
0,03Ru-0,015Pd 0,02 0,04 0,55 0,2
Ti3-0,45Ni-0,15Cr- 0,01- 0,02- 0,35- 0,1-
0,08 0,35 0,05 0,015 0,30 0,1 0,4
0,03Ru-0,015Pd 0,02 0,04 0,55 0,2
4,0-
Ti-5Al-2,5Sn 0,08 0,20 0,03 0,015 0,50 2,0-3,0 0,1 0,4
6,0
1,0-
Ti-1,5Al 0,08 0,25 0,03 0,015 0,30 0,1 0,4
2,0
2,5- 2,0-
Ti-3Al-2,5V 0,08 0,15 0,03 0,015 0,25 0,1 0,4
3,5 3,0
5,5- 3,5-
Ti-6Al-4V 0,08 0,20 0,05 0,015 0,40 0,1 0,4
6,75 4,5
5,5- 3,5-
Ti-6Al-4VELI 0,08 0,13 0,03 0,012 5 0,25 0,1 0,4
6,5 4,5
3,50- 20,0-
Ti-22V-4Al 0,10 0,25 0,05 0,015 1,00 0,1 0,4
4,50 23,0
6.3 Tensile properties
The room temperature tensile properties of the plate, sheet and strip in both longitudinal and
transverse directions of the final rolling shall conform to the requirements prescribed in Table 2.
The tensile testing shall be conducted in a method that is normally used by the manufacturer and the
purchaser and specified in this document. The test piece subjected to tension testing is a rectangular
or circular cross-section test piece with a gauge length of 50 mm, and the type of test piece shall be
included in the purchase order. In case of disagreement, the test piece specified in ISO 6892-1, Annex B
or Annex D shall be used as the referee test piece.
Table 2 — Tensile properties at room temperature
0,2 % Proof strength
Elongation in
Tensile strength (R ) a
m (R )
p0,2
c
50 mm
MPa
Designation
MPa
min%
b b
min max min max
Ti1 240 138 310 24
Ti1H 270 410 165 27
Ti2L 340 510 215 23
Ti2 345 275 450 20
Ti3 450 380 550 18
Ti3H 480 620 345 18
Ti4 550 (750) 483 (655) 15
Ti1-0,18Pd 240 138 310 24
Ti1H-0,18Pd 270 410 165 27
Ti2L-0,18Pd 340 510 215 23
Ti2-0,18Pd 345 275 450 20
Ti3H-0,18Pd 480 620 345 18
Ti1-0,06Pd 240 138 310 24
Ti1H-0,06Pd 240 380 170 24
Ti2L-0,06Pd 345 515 275 20
Ti2-0,06Pd 345 275 450 20
Ti2-0,75Ni-0,3Mo 483 345 - 18
Ti1L-0,5Ni-0,05Ru 275 (450) 170 24
Ti2L-0,5Ni-0,05Ru 410 (530) 275 20
Ti2-0,5Ni-0,05Ru 483 (630) 380 18
Ti2-0,5Co-0,06Pd 345 (515) 275 (450) 20
Ti3-0,5Co-0,06Pd 450 (590) 380 (550) 18
Ti2-0,45Ni-0,15Cr-0,03Ru- 345 275 450 20
0,015Pd
Ti3-0,45Ni-0,15Cr-0,03Ru- 450 380 550 18
0,015Pd
Ti-5Al-2.5Sn 828 793 10
Ti-1,5Al 345 215 (450) 20
a
0,2 % proof strength is specified. When specific yielding point is exhibited, the yield strength (R )
e
shall satisfy the specified strength.
b
Specified number in par
...