ASTM B367-22

Standard Specification for Titanium and Titanium Alloy Castings

ABSTRACT
This specification covers the standard requirements for titanium and titanium alloy castings intended for general corrosion resistant and industrial applications. Materials for this specification shall be melted by conventional processes used for reactive metals such as consumable electrode and induction-slag, plasma arc, induction-skull, and electron beam melting processes. The materials shall undergo chemical, pour, and product analysis to determine the chemical composition which shall conform to the requirements for nitrogen, carbon, hydrogen, iron, oxygen, aluminum, vanadium, tin, ruthenium, palladium, cobalt, molybdenum, chromium, nickel, niobium, zirconium, silicon, and titanium. All castings shall be supplied in the as-cast condition except when post-weld heat treatment is required wherein it shall consist of a stress relief performed at certain temperatures. The surface of the castings shall be free of adhering mold material, scale, cracks, and hot tears as determined by visual inspection.
SCOPE
1.1 This specification covers titanium and titanium alloy castings intended for general corrosion resistant and industrial applications. as follows:  
1.1.1 Grade C-2—UNS R52550. Unalloyed titanium,  
1.1.2 Grade C-3—UNS R52551. Unalloyed titanium,  
1.1.3 Grade C-5—UNS R56409. Titanium alloy (6 % aluminum, 4 % vanadium),  
1.1.4 Grade C-7—UNS R52700. Unalloyed titanium plus 0.12 to 0.25 % palladium,  
1.1.5 Grade C-8—UNS R52703. Unalloyed titanium plus 0.12 to 0.25 % palladium,  
1.1.6 Grade C-9—UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),  
1.1.7 Grade C-12—UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),  
1.1.8 Grade C-16—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,  
1.1.9 Grade C-17—UNS R52702. Unalloyed titanium plus 0.04 to 0.08 % palladium, and  
1.1.10 Grade C-38—UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron).  
1.2 This specification is intended for use of purchasers and/or producers of reactive metal castings for defining the requirements and assuring the properties of castings for unique corrosion-resistant applications, that is, not for commodity items which must meet all potential purchasers’ requirements.  
1.2.1 Users are advised to use the specification as a basis for obtaining castings which will meet minimum acceptance requirements established and revised by consensus of the members of the committee.  
1.2.2 User requirements considered more stringent may be met by the addition to the purchase order of one or more supplementary requirements, which may include, but are not limited to, those listed in Sections S1 through S8.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2022
• ICS: 77.150.50 - Titanium products
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.01 - Titanium

Relations

• Refers: ASTM E8/E8M-24 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Jan-2024
• Refers: ASTM E18-18 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Jul-2018
• Refers: ASTM E18-17 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Jul-2017
• Refers: ASTM E8/E8M-16 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 15-Jul-2016
• Refers: ASTM A802-95(2015) - Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination
• Effective Date: 01-Nov-2015
• Refers: ASTM E8/E8M-15 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Feb-2015
• Refers: ASTM E10-14 - Standard Test Method for Brinell Hardness of Metallic Materials
• Effective Date: 01-May-2014
• Refers: ASTM E8/E8M-13 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Jun-2013
• Refers: ASTM E18-12 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Dec-2012
• Refers: ASTM E10-12 - Standard Test Method for Brinell Hardness of Metallic Materials
• Effective Date: 01-Jan-2012
• Refers: ASTM E8/E8M-11 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Dec-2011
• Refers: ASTM E18-11 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Nov-2011
• Refers: ASTM A802-95(2010)e2 - Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination
• Effective Date: 01-Oct-2010
• Refers: ASTM E10-10 - Standard Test Method for Brinell Hardness of Metallic Materials
• Effective Date: 01-Jun-2010
• Refers: ASTM E446-10 - Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
• Effective Date: 01-Jan-2010

Overview

ASTM B367-22: Standard Specification for Titanium and Titanium Alloy Castings sets the internationally recognized requirements for producing titanium and titanium alloy castings used in corrosion-resistant and industrial applications. Published by ASTM International, this standard is essential for ensuring material quality, chemical composition, and consistency in titanium casting products. The specification addresses a range of titanium grades, encompassing unalloyed titanium and various titanium alloys with additives for enhanced properties.

Key Topics

• Scope & Purpose: Defines the standard requirements for titanium and titanium alloy castings, including chemical composition, melting processes, and acceptable manufacturing methods.
• Material Grades: Covers multiple grades such as C-2, C-3, C-5, C-7, C-8, C-9, C-12, C-16, C-17, and C-38, each with distinct alloying elements and targeted performance characteristics.
• Melting & Manufacture:
  • Conventional processes: consumable electrode, induction-slag, plasma arc, induction-skull, and electron beam melting.
  • Emphasis on processes suitable for reactive metals to prevent contamination and maintain material integrity.
• Chemical Analysis: Requires analysis for elements such as nitrogen, carbon, hydrogen, iron, oxygen, aluminum, vanadium, tin, palladium, nickel, molybdenum, and more.
• Heat Treatment: Specifies conditions for stress-relief heat treatments when post-weld processing is required. Generally, castings are supplied as-cast, unless otherwise specified.
• Workmanship & Inspection: Establishes that surfaces must be free of mold material, cracks, scale, and hot tears, and details visual inspection criteria.

Applications

ASTM B367-22 is widely applied in industries where corrosion resistance and structural integrity are critical, including:

• Chemical Processing: Equipment components in corrosive environments (reactors, pumps, valves).
• Power Generation: Parts exposed to aggressive chemicals and high temperatures.
• Marine Engineering: Structural and pressure parts requiring resistance to seawater corrosion.
• Aerospace: Specialty castings for non-commodity aircraft components where unique properties are required.
• Medical Devices: Select implantable and surgical hardware components, where biocompatibility and corrosion resistance are essential.
• General Industrial: Production of custom titanium cast parts in environments requiring high corrosion resistance.

Using this specification in procurement ensures that titanium castings meet established consensus-based thresholds for chemical purity, mechanical properties, and surface quality. Supplementary requirements available under the standard allow tailoring of inspections, such as radiographic and liquid penetrant examination, and mechanical properties testing, to meet stricter user applications.

Related Standards

ASTM B367-22 references and is commonly used in conjunction with several other ASTM standards and industry documents, including:

• ASTM E8/E8M - Tension Testing of Metallic Materials
• ASTM E10/E18 - Brinell and Rockwell Hardness Testing
• ASTM E165/E165M - Liquid Penetrant Testing for General Industry
• ASTM E94/E94M - Radiographic Examination using Industrial Radiographic Film
• ASTM E539, E1409, E1447, E1941, E2371 - Chemical Analysis Methods for Titanium and Titanium Alloys
• ASTM A802/A802M - Steel Castings, Surface Acceptance Standards, Visual Examination

Compliance with ASTM B367-22 helps manufacturers and purchasers ensure the reliability and performance of titanium castings in demanding applications where standards for quality, safety, and material performance are paramount.

Keywords: ASTM B367-22, titanium castings, titanium alloy casting standard, corrosion resistance, industrial titanium standards, chemical analysis, heat treatment titanium, ASTM International

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B367 −22
Standard Specification for
Titanium and Titanium Alloy Castings
This standard is issued under the fixed designation B367; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
1.1 This specification covers titanium and titanium alloy
conversions to SI units that are provided for information only
castings intended for general corrosion resistant and industrial
and are not considered standard.
applications. as follows:
1.4 This international standard was developed in accor-
1.1.1 Grade C-2—UNS R52550. Unalloyed titanium,
dance with internationally recognized principles on standard-
1.1.2 Grade C-3—UNS R52551. Unalloyed titanium,
ization established in the Decision on Principles for the
1.1.3 Grade C-5—UNS R56409. Titanium alloy (6 %
Development of International Standards, Guides and Recom-
aluminum, 4 % vanadium),
mendations issued by the World Trade Organization Technical
1.1.4 Grade C-7—UNS R52700. Unalloyed titanium plus
Barriers to Trade (TBT) Committee.
0.12 to 0.25 % palladium,
1.1.5 Grade C-8—UNS R52703. Unalloyed titanium plus
2. Referenced Documents
0.12 to 0.25 % palladium,
1.1.6 Grade C-9—UNS R56320. Titanium alloy (3 %
2.1 ASTM Standards:
aluminum, 2.5 % vanadium),
A802 Practice for Steel Castings, Surface Acceptance
1.1.7 Grade C-12—UNS R53400. Titanium alloy (0.3 %
Standards, Visual Examination
molybdenum, 0.8 % nickel),
E8/E8M Test Methods for Tension Testing of Metallic Ma-
1.1.8 Grade C-16—UNS R52402. Unalloyed titanium plus
terials
0.04 to 0.08 % palladium,
E10 Test Method for Brinell Hardness of Metallic Materials
1.1.9 Grade C-17—UNS R52702. Unalloyed titanium plus
E18 Test Methods for Rockwell Hardness of Metallic Ma-
0.04 to 0.08 % palladium, and
terials
1.1.10 Grade C-38—UNS R54250. Titanium alloy (4 %
E29 Practice for Using Significant Digits in Test Data to
aluminum, 2.5 % vanadium, 1.5 % iron).
Determine Conformance with Specifications
E94/E94M Guide for Radiographic Examination Using In-
1.2 This specification is intended for use of purchasers
dustrial Radiographic Film
and/or producers of reactive metal castings for defining the
E165/E165M Practice for Liquid Penetrant Testing for Gen-
requirements and assuring the properties of castings for unique
eral Industry
corrosion-resistant applications, that is, not for commodity
E446 Reference Radiographs for Steel Castings Up to 2 in.
items which must meet all potential purchasers’ requirements.
(50.8 mm) in Thickness
1.2.1 Usersareadvisedtousethespecificationasabasisfor
E2626 Guide for Spectrometric Analysis of Reactive and
obtaining castings which will meet minimum acceptance
Refractory Metals (Withdrawn 2017)
requirements established and revised by consensus of the
members of the committee.
3. Terminology
1.2.2 User requirements considered more stringent may be
met by the addition to the purchase order of one or more
3.1 Definitions of Terms Specific to This Standard:
supplementary requirements, which may include, but are not
3.1.1 lot, n—shall consist of all castings of the same design
limited to, those listed in Sections S1 through S8.
produced from the same pour.
1 2
This specification is under the jurisdiction of ASTM Committee B10 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Reactive and Refractory Metals and Alloys and is the direct responsibility of contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Subcommittee B10.01 on Titanium. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2022. Published April 2022. Originally the ASTM website.
approved in 1961. Last previous edition approved in 2017 as B367 – 13 (2017). The last approved version of this historical standard is referenced on
DOI: 10.1520/B0367-22. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B367−22
3.1.2 pour, n—shallconsistofallmaterialmeltedandcastat shall conform to the analysis in Table 1 within the check
one time. analysis variations shown in Table 2 or shall be subject to
rejection by the purchaser.
4. Ordering Information
7. Heat Treatment
4.1 Orders for castings to this specification shall include the
7.1 Unless otherwise specified in the contract, all castings
following as required, to describe the requirements adequately:
willbesuppliedintheas-castconditionexceptwhenpost-weld
4.1.1 Description of the castings by pattern number or
heat treatment is required.
drawing. Dimensional tolerances shall be included on the
casting drawing,
7.2 Ifpost-weldheattreatmentisrequired,itshallconsistof
4.1.2 Quantity,
a stress relief performed at 1075 6 25 °F (580 6 14 °C) for
4.1.3 Grade designation (see Table 1),
Grades C-2, C-3, C-7, C-8, C-12, C-16 and C-17, and 1200 6
4.1.4 Options in the specification, and
25 °F(650 614 °C)forGradesC-5,C-6,C-9,C-18,andC-38.
4.1.5 Supplementary requirements desired, including the
Time at temperature shall be a minimum of ⁄2 h plus an
standards of acceptance.
additional ⁄2 h at temperature per inch of thickness for section
sizes greater than 1 in. (25 mm). After heat treatment, the
5. Materials and Manufacture
castings should be cooled in air or in the furnace to ambient
5.1 Materials for this specification shall be melted by temperature unless otherwise agreed upon between the pur-
conventional processes used for reactive metals. Typical meth-
chaser and producer.
ods include the consumable electrode and induction-slag,
8. Methods of Chemical Analysis
plasma arc, induction-skull, and electron beam melting pro-
cesses.
8.1 The chemical analysis shall normally be conducted
using theASTM standard test methods referenced in2.1. Other
6. Chemical Composition
industry standard methods may be used where the ASTM test
6.1 Pour Analysis—An analysis of each pour shall be made methods in 2.1 do not adequately cover the elements in the
material or by agreement between the producer and purchaser.
by the producer from a sample such as a casting or test bar that
is representative of the pour. The chemical composition deter- Alternate techniques are discussed in Guide E2626.
mined shall conform to the requirements specified for the
9. Workmanship, Finish, and Appearance
relevant grade in Table 1.
6.1.1 The elements listed in Table 1 are intentional alloy
9.1 All castings shall be made in a workman-like manner
additions or elements which are inherent to the manufacture of
and shall conform to the dimensions in drawings furnished by
titanium sponge, ingot or mill product.
the purchaser before manufacturing is started. If the pattern is
6.1.1.1 Elements other than those listed in Table 1 are
supplied by the purchaser, the dimensions of the casting shall
deemed to be capable of occurring in the grades listed in Table
be as predicted by the pattern.
1 by and only by way of unregulated or unanalyzed scrap
9.2 The surface of the casting shall be free of adhering mold
additions to the ingot melt. Therefore product analysis for
material, scale, cracks, and hot tears as determined by visual
elements not listed in Table 1 shall not be required unless
examination.Othersurfacediscontinuitiesshallmeetthevisual
specified and shall be considered to be in excess of the intent
acceptance standards specified in the order. Practice A802 or
of this specification.
other visual standards may be used to define acceptable surface
6.1.2 Elements intentionally added to the melt must be
discontinuities and finish. Unacceptable surface discontinuities
identified, analyzed, and reported in the chemical analysis.
shall be removed and their removal verified by visual exami-
6.2 When agreed upon by the producer and the purchaser
nation of the resultant cavities.
and requested by the purchaser in his written purchase order,
chemical analysis shall be completed for specific residual 10. Repair by Welding
elements not listed in this specification.
10.1 If repairs are required, these shall be made using a
6.3 Product Analysis—Product analysis tolerances do not welding procedure and operators certified to quality require-
broaden the specified heat analysis requirements, but cover ments established by the producer. The procedures developed
variations between laboratories in the measurement of chemi- shall be consistent with standard practices recommended for
cal content. The producer shall not ship material which is reactive metal alloys. The producer shall maintain documenta-
outside the limits specified in Table 1 for the applicable grade. tion on procedure and welder qualifications. Procedure modi-
Product analysis limits shall be as specified in Table 2. fications or special arrangements shall be as agreed upon
between the producer and the purchaser.
6.4 Sampling—Samples for chemical analysis may be made
by the purchaser on a representative casting from any lot. Due 10.2 The composition of the deposited weld metal shall be
to the possibility of oxygen or other interstitial contamination, within the chemical requirements for each grade established in
samples for oxygen, carbon, hydrogen, and nitrogen analysis Table 1.
shall be taken no closer than ⁄4 in. (6.3 mm) to a cast surface 10.2.1 Unalloyed titanium Grades C-2 and C-3, and low-
except that castings too thin for this shall be analyzed on alloy Grades C-12, C-7, C-8, C-16, and C-17 castings shall be
representative material. The chemical composition determined stress-relieved if the repair is considered capable of adding
B367−22
TABLE 1 Chemical Requirements
A,B,C,D,E
Composition, Weight Percent
Oxygen Other Other
range Iron Elements, Elements,
UNS Carbon, or Nitrogen, Hydrogen, range max. max.
Grade Number max. max. max. max. or max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Cobalt Zirconium Niobium Tin Silicon each total
C-2 R52550 0.10 0.40 0.05 0.015 0.20 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
C-3 R52551 0.10 0.40 0.05 0.015 0.25 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
C-5 R56409 0.10 0.25 0.05 0.015 0.40 5.5- 3.5- -- -- -- -- -- -- -- -- -- -- 0.1 0.4
6.75 4.5
C-6 R54520 0.10 0.20 0.05 0.015 0.50 4.0- -- -- -- -- -- -- -- -- -- 2.0- -- 0.1 0.4
6.0 3.0
C-7 R52700 0.10 0.40 0.05 0.015 0.20 - - - - 0.12- -- -- -- -- -- -- -- -- -- 0.1 0.4
0.25
C-8 R52703 0.10 0.40 0.05 0.015 0.25 - - - - 0.12- -- -- -- -- -- -- -- -- -- -- --
0.25
C-9 R56320 0.10 0.20 0.05 0.015 0.25 2.5- 2.0- -- -- -- -- -- -- -- -- -- -- -- --
3.5 3.0
C-12 R53400 0.10 0.25 0.05 0.015 0.30 - - - - - - - - 0.6- 0.2- -- -- -- -- -- -- 0.1 0.4
0.9 0.4
C-16 R52402 0.10 0.18 0.03 0.015 0.30 - - - - 0.04- -- -- -- -- -- -- -- -- -- 0.1 0.4
0.08
C-17 R52702 0.10 0.20 0.03 0.015 0.25 - - - - 0.04- -- -- -- -- -- -- -- -- -- 0.1 0.4
0.08
C-18 R58465 0.08 0.20 0.03 0.015 0.25 2.5- 2.0- 0.04- -- -- -- -- -- -- -- -- -- 0.1 0.4
3.5 3.0 0.08
C-38 R54250 0.08 0.20- 0.03 0.015 1.2- 3.5- 2.0- -- -- -- -- -- -- -- -- -- -- 0.1 0.4
0.30 1.8 4.5 3.0
A
At minimum, one pour analysis shall be completed and reported for all elements listed for the respective grade in this table.
B
If the casting is subjected to thermal or chemical processing following the pour, final product hydrogen shall be reported in lieu of pour hydrogen. Lower hydrogen may be obtained by negotiation with the manufacturer.
C
Single values are maximum. The percentage of titanium is determined by difference.
D
Other elements need not be reported unless the concentration level is greater than 0.1 % each, or 0.4 % total. Other elements may not be added intentionally. Other elements may be present in titanium or titanium
alloys in small quantities and are inherent to the manufacturing process. In titanium these elements typically include aluminum, vanadium, tin, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium,
palladium, yttrium, copper, silicon, cobalt, tantalum, nickel, boron, manganese, and tungsten.
E
The purchaser may, in the written purchase order, request analysis for specific elements not listed in thi
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B367 − 13 (Reapproved 2017) B367 − 22
Standard Specification for
Titanium and Titanium Alloy Castings
This standard is issued under the fixed designation B367; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers titanium and titanium alloy castings intended for general corrosion resistant and industrial
applications. as follows:
1.1.1 Grade C-2—UNS R52550. Unalloyed titanium,
1.1.2 Grade C-3—UNS R52550.R52551. Unalloyed titanium,
1.1.3 Grade C-5—UNS R56400.R56409. Titanium alloy (6 % aluminum, 4 % vanadium),
1.1.4 Grade C-7—UNS R52700. Unalloyed titanium plus 0.12 to 0.25 % palladium,
1.1.5 Grade C-8—UNS R52700.R52703. Unalloyed titanium plus 0.12 to 0.25 % palladium,
1.1.6 Grade C-9—UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),
1.1.7 Grade C-12—UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),
1.1.8 Grade C-16—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,
1.1.9 Grade C-17—UNS R52252.R52702. Unalloyed titanium plus 0.04 to 0.08 % palladium, and
1.1.10 Grade C-38—UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron).
1.2 This specification is intended for use of purchasers and/or producers of reactive metal castings for defining the requirements
and assuring the properties of castings for unique corrosion-resistant applications, that is, not for commodity items which must
meet all potential purchasers’ requirements.
1.2.1 Users are advised to use the specification as a basis for obtaining castings which will meet minimum acceptance
requirements established and revised by consensus of the members of the committee.
1.2.2 User requirements considered more stringent may be met by the addition to the purchase order of one or more supplementary
requirements, which may include, but are not limited to, those listed in Sections S1 through S8.
This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee
B10.01 on Titanium.
Current edition approved Nov. 1, 2017April 1, 2022. Published November 2017April 2022. Originally approved in 1961. Last previous edition approved in 20132017 as
B367 – 13.B367 – 13 (2017). DOI: 10.1520/B0367-13R17.10.1520/B0367-22.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B367 − 22
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A802/A802MA802 Practice for Steel Castings, Surface Acceptance Standards, Visual Examination
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E10 Test Method for Brinell Hardness of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E94E94/E94M Guide for Radiographic Examination Using Industrial Radiographic Film
E142 Method for Controlling Quality of Radiographic Testing (Withdrawn 2000)
E165E165/E165M Practice for Liquid Penetrant Testing for General Industry
E446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
E539 Test Method for Analysis of Titanium Alloys by Wavelength Dispersive X-Ray Fluorescence Spectrometry
E1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion
E1447 Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion Thermal
Conductivity/Infrared Detection Method
E1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis
E2371 Test Method for Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma
Atomic Emission Spectrometry (Performance-Based Test Methodology)
E2626 Guide for Spectrometric Analysis of Reactive and Refractory Metals (Withdrawn 2017)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 lot, n—shall consist of all castings of the same design produced from the same pour.
3.1.2 pour, n—shall consist of all material melted and cast at one time.
4. Ordering Information
4.1 Orders for castings to this specification shall include the following as required, to describe the requirements adequately:
4.1.1 Description of the castings by pattern number or drawing. Dimensional tolerances shall be included on the casting drawing,
4.1.2 Quantity,
4.1.3 Grade designation (see Table 1),
4.1.4 Options in the specification, and
4.1.5 Supplementary requirements desired, including the standards of acceptance.
5. Materials and Manufacture
5.1 Materials for this specification shall be melted by conventional processes used for reactive metals. Typical methods include
the consumable electrode and induction-slag, plasma arc, induction-skull, and electron beam melting processes.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
B367 − 22
TABLE 1 Chemical Requirements
A,B,C,D,E
Composition, Weight Percent
Oxygen Other Other
range Iron Elements, Elements,
UNS Carbon, or Nitrogen, Hydrogen, range max. max.
Grade Number max. max. max. max. or max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Cobalt Zirconium Niobium Tin Silicon each total
— — — — — — — — — — — — — — — — — — — —
C-2 R52550 0.10 0.40 0.05 0.015 0.20 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
— — — — — — — — — — — — — — — — — — — —
C-3 R52550 0.10 0.40 0.05 0.015 0.25 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
C-3 R52551 0.10 0.40 0.05 0.015 0.25 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
— — — — — — — — — — — — — — — — — — — —
C-5 R56400 0.10 0.25 0.05 0.015 0.40 5.5- 3.5- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
6.75 4.5
C-5 R56409 0.10 0.25 0.05 0.015 0.40 5.5- 3.5- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
6.75 4.5
C-6 R54520 0.10 0.20 0.05 0.015 0.50 4.0- - - - - - - - - - - - - - - - - - - 2.0- - - 0.1 0.4
6.0 3.0
C-7 R52700 0.10 0.40 0.05 0.015 0.20 - - - - 0.12- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.25
C-8 R52700 0.10 0.40 0.05 0.015 0.25 - - - - 0.12- - - - - - - - - - - - - - - - - - - - - - -
0.25
C-8 R52703 0.10 0.40 0.05 0.015 0.25 - - - - 0.12- - - - - - - - - - - - - - - - - - - - - - -
0.25
C-9 R56320 0.10 0.20 0.05 0.015 0.25 2.5- 2.0- - - - - - - - - - - - - - - - - - - - - - - - -
3.5 3.0
— — — — — — — — — — — — — — — — — — — —
C-12 R53400 0.10 0.25 0.05 0.015 0.30 - - - - - - - - 0.6- 0.2- - - - - - - - - - - - - 0.1 0.4
0.9 0.4
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
C-16 R52402 0.10 0.18 0.03 0.015 0.30 - - - - 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.08
— — — — — — — — — — — — — — — — — — — —
C-17 R52252 0.10 0.20 0.03 0.015 0.25 - - - - 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.08
C-17 R52702 0.10 0.20 0.03 0.015 0.25 - - - - 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.08
C-18 R58465 0.08 0.20 0.03 0.015 0.25 2.5- 2.0- 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
3.5 3.0 0.08
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — —
C-38 R54250 0.08 0.20- 0.03 0.015 1.2- 3.5- 2.0- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
0.30 1.8 4.5 3.0
B367 − 22
A
At minimum, one pour analysis shall be completed and reported for all elements listed for the respective grade in this table.
B
If the casting is subjected to thermal or chemical processing following the pour, final product hydrogen shall be reported in lieu of pour hydrogen. Lower hydrogen may be obtained by negotiation with the manufacturer.
C
Single values are maximum. The percentage of titanium is determined by difference.
D
Other elements need not be reported unless the concentration level is greater than 0.1 % each, or 0.4 % total. Other elements may not be added intentionally. Other elements may be present in titanium or titanium
alloys in small quantities and are inherent to the manufacturing process. In titanium these elements typically include aluminum, vanadium, tin, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium,
palladium, yttrium, copper, silicon, cobalt, tantalum, nickel, boron, manganese, and tungsten.
E
The purchaser may, in the written purchase order, request analysis for specific elements not listed in this specification.

B367 − 22
6. Chemical Composition
6.1 Pour Analysis—An analysis of each pour shall be made by the producer from a sample such as a casting or test bar that is
representative of the pour. The chemical composition determined shall conform to the requirements specified for the relevant grade
in Table 1.
6.1.1 The elements listed in Table 1 are intentional alloy additions or elements which are inherent to the manufacture of titanium
sponge, ingot or mill product.
6.1.1.1 Elements other than those listed in Table 1 are deemed to be capable of occurring in the grades listed in Table 1 by and
only by way of unregulated or unanalyzed scrap additions to the ingot melt. Therefore product analysis for elements not listed in
Table 1 shall not be required unless specified and shall be considered to be in excess of the intent of this specification.
6.1.2 Elements intentionally added to the melt must be identified, analyzed, and reported in the chemical analysis.
6.2 When agreed upon by the producer and the purchaser and requested by the purchaser in his written purchase order, chemical
analysis shall be completed for specific residual elements not listed in this specification.
6.3 Product Analysis—Product analysis tolerances do not broaden the specified heat analysis requirements, but cover variations
between laboratories in the measurement of chemical content. The producer shall not ship material which is outside the limits
specified in Table 1 for the applicable grade. Product analysis limits shall be as specified in Table 2.
6.4 Sampling—Samples for chemical analysis may be made by the purchaser on a representative casting from any lot. Due to the
possibility of oxygen or other interstitial contamination, samples for oxygen, carbon, hydrogen, and nitrogen analysis shall be taken
no closer than ⁄4 in. (6.3 mm) to a cast surface except that castings too thin for this shall be analyzed on representative material.
The chemical composition determined shall conform to the analysis in Table 1 within the check analysis variations shown in Table
2 or shall be subject to rejection by the purchaser.
7. Heat Treatment
7.1 Unless otherwise specified in the contract, all castings will be supplied in the as-cast condition except when post-weld heat
treatment is required.
7.2 If post-weld heat treatment is required, it shall consist of a stress relief performed at 1075 6 25°F25 °F (580 6 14°C)14 °C)
for Grades C-2, C-3, C-7, C-8, C-12, C-16 and C-17, and 1200 6 25°F25 °F (650 6 14°C)14 °C) for Grades C-5, C-6, C-9, C-18,
1 1
and C-38. Time at temperature shall be a minimum of ⁄2 h plus an additional ⁄2 h at temperature per inch of thickness for section
sizes greater than 1 in. (25 mm). After heat treatment, the castings should be cooled in air or in the furnace to ambient temperature
unless otherwise agreed upon between the purchaser and producer.
TABLE 2 Check Analysis Tolerances
Maximum or Range, Permissible Variation in
Element
Weight % Check Analysis
Nitrogen 0.05 +0.02
Carbon 0.10 +0.02
Hydrogen 0.015 +0.003
Iron 1.2–1.8 ±0.20
Iron 0.50 +0.15
0.40 +0.08
0.25 +0.05
0.20 +0.04
Oxygen 0.25 +0.05
0.20 +0.04
Aluminum 2.5–6.75 ±0.40
Vanadium 2.0–4.5 ±0.15
Tin 2.0–3.0 ±0.15
Palladium 0.04–0.25 ±0.02
Molybdenum 0.2–0.4 ±0.04
Nickel 0.3–0.9 ±0.05
Other (each) 0.10 +0.02
B367 − 22
8. Methods of Chemical Analysis
8.1 The chemical analysis shall normally be conducted using the ASTM standard test methods referenced in 2.1. Other industry
standard methods may be used where the ASTM test methods in 2.1 do
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