ASTM B381-13(2019)

Standard Specification for Titanium and Titanium Alloy Forgings

ABSTRACT
This specification covers 39 grades of annealed titanium and titanium alloy forgings as Grade F-1, Grade F-2, Grade F-2H, Grade F-3, Grade F-4, Grade F-5, Grade F-6, Grade F-7, Grade F-7H, Grade F-9, Grade F-11, Grade F-12, Grade F-13, Grade F-14, Grade F-15, Grade F-16, Grade F-16H, Grade F-17, Grade F-18, Grade F-19 Grade F-20, Grade F-21, Grade F-23, Grade F-24, Grade F-25, Grade F-26, Grade F-26H, Grade F-27, Grade F-28, Grade F-29, Grade F-30, Grade F-31, Grade F-32, Grade F-33, Grade F-34, Grade F-35, Grade F-36, Grade F-37, and Grade F-38. The grades of titanium and titanium alloy metal covered by this specification shall conform to the requirements as to chemical composition prescribed. Forgings supplied under this specification shall conform to the requirements as to mechanical properties specified, as applicable, such as tensile strength, yield strength, and elongation. Nondestructive test requirements such as ultrasonic test, X-ray, or surface inspection shall be specified by the purchaser, if required.
SCOPE
1.1 This specification2 covers 39 grades of annealed titanium and titanium alloy forgings as follows:  
1.1.1 Grade F-1—UNS R50250. Unalloyed titanium,  
1.1.2 Grade F-2—UNS R50400. Unalloyed titanium,
1.1.2.1 Grade F-2H—UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),  
1.1.3 Grade F-3—UNS R50550. Unalloyed titanium,  
1.1.4 Grade F-4—UNS R50700. Unalloyed titanium,  
1.1.5 Grade F-5—UNS R56400. Titanium alloy (6 % aluminum, 4 % vanadium),  
1.1.6 Grade F-6—UNS R54520. Titanium alloy (5 % aluminum, 2.5 % tin),  
1.1.7 Grade F-7—UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium,
1.1.7.1 Grade F-7H—UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi (400 MPa) minimum UTS),  
1.1.8 Grade F-9—UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),  
1.1.9 Grade F-11—UNS R52250. Unalloyed titanium plus 0.12 to 0.25 % palladium,  
1.1.10 Grade F-12—UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),  
1.1.11 Grade F-13—UNS R53413. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),  
1.1.12 Grade F-14—UNS R53414. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),  
1.1.13 Grade F-15—UNS R53415. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),  
1.1.14 Grade F-16—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,
1.1.14.1 Grade F-16H—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium (Grade 16 with 58 ksi (400 MPa) minimum UTS),  
1.1.15 Grade F-17—UNS R52252. Unalloyed titanium plus 0.04 to 0.08 % palladium,  
1.1.16 Grade F-18—UNS R56322. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 % to 0.08 % palladium,  
1.1.17 Grade F-19—UNS R58640. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),  
1.1.18 Grade F-20—UNS R58645. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 to 0.08 % palladium,  
1.1.19 Grade F-21—UNS R58210. Titanium alloy (3 % aluminum, 2.7 % niobium, 15 % molybdenum, 0.25 % silicon),  
1.1.20 Grade F-23—UNS R56407. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitials, ELI),  
1.1.21 Grade F-24—UNS R56405. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 to 0.08 % palladium,  
1.1.22 Grade F-25—UNS R56403. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 to 0.8 % nickel and 0.04 to 0.08 % palladium,  
1.1.23 Grade F-26—UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,
1.1.23.1 Grade F-26H—UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi (400 MPa) minimum UTS),  
1.1.24 Grade F-27—UNS R52254. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,  
1.1.25 Grade F-28—UNS R56323. Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.08 to 0.14 % ruthenium),  
1.1.26 Grade F-29—UNS R56404. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08 to 0.14 % ruthenium),  
1....

General Information

• Status: Historical
• Publication Date: 30-Jun-2019
• ICS: 77.150.50 - Titanium products
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.01 - Titanium

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B381 −13 (Reapproved 2019)
Standard Specification for
Titanium and Titanium Alloy Forgings
This standard is issued under the fixed designation B381; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.1.15 Grade F-17—UNS R52252. Unalloyed titanium plus
0.04 to 0.08% palladium,
1.1 This specification covers 39 grades of annealed tita-
1.1.16 Grade F-18—UNS R56322. Titanium alloy (3%
nium and titanium alloy forgings as follows:
aluminum, 2.5% vanadium) plus 0.04% to 0.08% palladium,
1.1.1 Grade F-1—UNS R50250. Unalloyed titanium,
1.1.17 Grade F-19—UNS R58640. Titanium alloy (3%
1.1.2 Grade F-2—UNS R50400. Unalloyed titanium,
1.1.2.1 Grade F-2H—UNS R50400. Unalloyed titanium aluminum,8%vanadium,6%chromium,4%zirconium,4%
molybdenum),
(Grade 2 with 58 ksi (400 MPa) minimum UTS),
1.1.3 Grade F-3—UNS R50550. Unalloyed titanium,
1.1.18 Grade F-20—UNS R58645. Titanium alloy (3%
1.1.4 Grade F-4—UNS R50700. Unalloyed titanium,
aluminum,8%vanadium,6%chromium,4%zirconium,4%
1.1.5 Grade F-5—UNS R56400. Titanium alloy (6 % molybdenum) plus 0.04 to 0.08% palladium,
aluminum, 4% vanadium),
1.1.19 Grade F-21—UNS R58210. Titanium alloy (3%
1.1.6 Grade F-6—UNS R54520. Titanium alloy (5 %
aluminum, 2.7 % niobium, 15 % molybdenum, 0.25 %
aluminum, 2.5% tin),
silicon),
1.1.7 Grade F-7—UNS R52400. Unalloyed titanium plus
1.1.20 Grade F-23—UNS R56407. Titanium alloy (6%
0.12 to 0.25% palladium,
aluminum, 4% vanadium, extra low interstitials, ELI),
1.1.7.1 Grade F-7H—UNS R52400. Unalloyed titanium
1.1.21 Grade F-24—UNS R56405. Titanium alloy (6%
plus 0.12 to 0.25% palladium (Grade 7 with 58 ksi (400 MPa)
aluminum, 4% vanadium) plus 0.04 to 0.08% palladium,
minimum UTS),
1.1.22 Grade F-25—UNS R56403. Titanium alloy (6%
1.1.8 Grade F-9—UNS R56320. Titanium alloy (3 %
aluminum, 4% vanadium) plus 0.3 to 0.8% nickel and 0.04 to
aluminum, 2.5% vanadium),
0.08% palladium,
1.1.9 Grade F-11—UNS R52250. Unalloyed titanium plus
1.1.23 Grade F-26—UNS R52404. Unalloyed titanium plus
0.12 to 0.25% palladium,
0.08 to 0.14% ruthenium,
1.1.10 Grade F-12—UNS R53400. Titanium alloy (0.3%
1.1.23.1 Grade F-26H—UNS R52404. Unalloyed titanium
molybdenum, 0.8% nickel),
plus 0.08 to 0.14% ruthenium (Grade 26 with 58 ksi (400
1.1.11 Grade F-13—UNS R53413. Titanium alloy (0.5%
MPa) minimum UTS),
nickel, 0.05% ruthenium),
1.1.12 Grade F-14—UNS R53414. Titanium alloy (0.5% 1.1.24 Grade F-27—UNS R52254. Unalloyed titanium plus
nickel, 0.05% ruthenium), 0.08 to 0.14% ruthenium,
1.1.13 Grade F-15—UNS R53415. Titanium alloy (0.5%
1.1.25 Grade F-28—UNS R56323. Titanium alloy (3%
nickel, 0.05% ruthenium),
aluminum, 2.5% vanadium plus 0.08 to 0.14% ruthenium),
1.1.14 Grade F-16—UNS R52402. Unalloyed titanium plus
1.1.26 Grade F-29—UNS R56404. Titanium alloy (6%
0.04 to 0.08% palladium,
aluminum, 4% vanadium, extra low interstitial, ELI plus 0.08
1.1.14.1 Grade F-16H—UNS R52402. Unalloyed titanium
to 0.14% ruthenium),
plus 0.04 to 0.08% palladium (Grade 16 with 58 ksi (400
1.1.27 Grade F-30—UNS R53530. Titanium alloy (0.3%
MPa) minimum UTS),
cobalt, 0.05% palladium),
1.1.28 Grade F-31—UNS R53532. Titanium alloy (0.3%
cobalt, 0.05% palladium),
This specification is under the jurisdiction of ASTM Committee B10 on
1.1.29 Grade F-32—UNS R55111. Titanium alloy (5%
Reactive and Refractory Metals and Alloys and is the direct responsibility of
aluminum, 1% vanadium, 1% tin, 1% zirconium, 0.8%
Subcommittee B10.01 on Titanium.
CurrenteditionapprovedJuly1,2019.PublishedJuly2019.Originallyapproved molybdenum),
in 1961. Last previous edition approved in 2013 as B381–13. DOI: 10.1520/
1.1.30 Grade F-33—UNS R53442. Titanium alloy (0.4%
B0381-13R19.
nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 %
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB-381 in Section II of that Code. chromium),
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B381−13 (2019)
1.1.31 Grade F-34—UNS R53445. Titanium alloy (0.4% 3. Terminology
nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 %
3.1 Definitions of Terms Specific to This Standard:
chromium),
3.1.1 bar, n—a hot rolled, forged or cold worked semifin-
1.1.32 Grade F-35—UNS R56340. Titanium alloy (4.5%
ished solid section product whose cross sectional area is less
aluminum, 2% molybdenum, 1.6% vanadium, 0.5% iron, 2 2
than 16 in. (10323 mm ).
0.3% silicon),
3.1.2 billet, n—a solid semifinished section, hot rolled or
1.1.33 Grade F-36—UNS R58450. Titanium alloy (45%
forgedfromaningot,withacrosssectionalareagreaterthan16
niobium),
2 2
in. (10323 mm ).
1.1.34 Grade F-37—UNS R52815. Titanium alloy (1.5%
3.1.3 forging, n—any product of work on metal formed to
aluminum), and
a desired shape by impact or pressure in hammers, forging
1.1.35 Grade F-38—UNS R54250. Titanium alloy (4%
machines, upsetters presses or related forming equipment.
aluminum, 2.5% vanadium, 1.5% iron).
NOTE 1—H grade material is identical to the corresponding numeric
4. Ordering Information
grade (that is, Grade 2H = Grade 2) except for the higher guaranteed
minimum UTS, and may always be certified as meeting the requirements
4.1 Ordersforforgingsunderthisspecificationshallinclude
of its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H are
the following information, as applicable:
intended primarily for pressure vessel use.
4.1.1 Grade number (Section 1),
1.2 The values stated in inch-pound units are to be regarded
4.1.2 Tensile properties (Table 1),
as standard. The values given in parentheses are mathematical
4.1.3 Dimensions and tolerances (Section 10),
conversions to SI units that are provided for information only
4.1.4 Sampling, mechanical properties (Section 8),
and are not considered standard.
4.1.5 Methods for chemical analysis (Section 6),
1.3 This international standard was developed in accor-
4.1.6 Marking (Section 17),
dance with internationally recognized principles on standard-
4.1.7 Packaging (Section 17),
ization established in the Decision on Principles for the
4.1.8 Certification (Section 16),
Development of International Standards, Guides and Recom-
4.1.9 Disposition of rejected material (Section 14), and
mendations issued by the World Trade Organization Technical
4.1.10 Supplementary requirements (S1).
Barriers to Trade (TBT) Committee.
5. Materials and Manufacture
2. Referenced Documents
5.1 Material conforming to the latest revision of Specifica-
2.1 ASTM Standards:
tion B348 shall be used when producing forgings to this
B348Specification for Titanium and Titanium Alloy Bars
specification.
and Billets
6. Chemical Composition
E8Test Methods for Tension Testing of Metallic Materials
[Metric] E0008_E0008M
6.1 Thegradesoftitaniumandtitaniumalloymetalcovered
E29Practice for Using Significant Digits in Test Data to
by this specification shall conform to the requirements as to
Determine Conformance with Specifications
chemical composition prescribed in Table 2.
E539Test Method for Analysis of Titanium Alloys by
6.1.1 The elements listed in Table 2 are intentional alloy
WavelengthDispersiveX-RayFluorescenceSpectrometry
additionsorelementswhichareinherenttothemanufacturerof
E1409Test Method for Determination of Oxygen and Nitro-
titanium sponge, ingot or mill product.
gen in Titanium and TitaniumAlloys by Inert Gas Fusion
6.1.1.1 Elements other than those listed in Table 2 are
E1447Test Method for Determination of Hydrogen in Tita-
deemed to be capable of occurring in the grades listed in Table
nium and Titanium Alloys by Inert Gas Fusion Thermal
2 by and only by way of unregulated or unanalyzed scrap
Conductivity/Infrared Detection Method
additions to the ingot melt. Therefore, product analysis for
E1941Test Method for Determination of Carbon in Refrac-
elements not listed in Table 2 shall not be required unless
toryandReactiveMetalsandTheirAlloysbyCombustion
specified and shall be considered to be in excess of the intent
Analysis
of this specification.
E2371Test Method for Analysis of Titanium and Titanium
6.1.2 Elements intentionally added to the melt must be
Alloys by Direct Current Plasma and Inductively Coupled
identified, analyzed, and reported in the chemical analysis.
Plasma Atomic Emission Spectrometry (Performance-
6.2 When agreed upon by the producer and purchaser and
Based Test Methodology)
requested by the purchaser in his written purchase order,
E2626Guide for Spectrometric Analysis of Reactive and
chemical analysis shall be completed for specific residual
Refractory Metals (Withdrawn 2017)
elements not listed in this specification.
6.3 Product Analysis—Product analysis tolerances do not
broaden the specified heat analysis requirements, but cover
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
variations between laboratories in the measurement of chemi-
Standards volume information, refer to the standard’s Document Summary page on
cal content. The manufacturer shall not ship material which is
theASTM website.
outside the limits specified in Table 2 for the applicable grade.
The last approved version of this historical standard is referenced on
www.astm.org. Product analysis limits shall be as specified in Table 3.
B381−13 (2019)
A
TABLE 1 Tensile Requirements
Tensile Strength, min Yield Strength (0.2 % Offset), min or Range
Elongation in 4D, Reduction of Area,
Grade
min, % min, %
ksi (MPa) ksi (MPa)
F-1 35 (240) 20 (138) 24 30
F-2 50 (345) 40 (275) 20 30
B,C
F-2H 58 (400) 40 (275) 20 30
F-3 65 (450) 55 (380) 18 30
F-4 80 (550) 70 (483) 15 25
F-5 130 (895) 120 (828) 10 25
F-6 120 (828) 115 (795) 10 25
F-7 50 (345) 40 (275) 20 30
B,C
F-7H 58 (400) 40 (275) 20 30
F-9 120 (828) 110 (759) 10 25
D
F-9 90 (620) 70 (483) 15 25
F-11 35 (240) 20 (138) 24 30
F-12 70 (483) 50 (345) 18 25
F-13 40 (275) 25 (170) 24 30
F-14 60 (410) 40 (275) 20 30
F-15 70 (483) 55 (380) 18 25
F-16 50 (345) 40 (275) 20 30
B,C
F-16H 58 (400) 40 (275) 20 30
F-17 35 (240) 20 (138) 24 30
F-18 90 (620) 70 (483) 15 25
D
F-18 90 (620) 70 (483) 12 20
E
F-19 115 (793) 110 (759) 15 25
F
F-19 135 (930) 130 to 159 (897) to (1096) 10 20
G
F-19 165 (1138) 160 to 185 (1104) to (1276) 5 20
E
F-20 115 (793) 110 (759) 15 25
F
F-20 135 (930) 130 to 159 (897) to (1096) 10 20
G
F-20 165 (1138) 160 to 185 (1104) to (1276) 5 20
E
F-21 115 (793) 110 (759) 15 35
F
F-21 140 (966) 130 to 159 (897) to (1096) 10 30
G
F-21 170 (1172) 160 to 185 (1104) to (1276) 8 20
F-23 120 (828) 110 (759) 10 25
D H I
F-23 120 (828) 110 (759) 7.5 ,6.0 25
F-24 130 (895) 120 (828) 10 25
F-25 130 (895) 120 (828) 10 25
F-26 50 (345) 40 (275) 20 30
B,C
F-26H 58 (400) 40 (275) 20 30
F-27 35 (240) 20 (138) 24 30
F-28 90 (620) 70 (483) 15 25
D
F-28 90 (620) 70 (483) 12 20
F-29 120 (828) 110 (759) 10 25
D H I
F-29 120 (828) 110 (759) 7.5 ,6.0 15
F-30 50 (345) 40 (275) 20 30
F-31 65 (450) 55 (380) 18 30
F-32 100 (689) 85 (586) 10 25
F-33 50 (345) 40 (275) 20 30
F-34 65 (450) 55 (380) 18 30
F-35 130 (895) 120 (828) 5 20
F-36 65 (450) 60 to 95 (410 to 655) 10 .
F-37 50 (345) 31 (215) 20 30
F-38 130 (895) 115 (794) 10 25
A 2 2
These properties apply to forgings having a cross section no greater than 3 in. (1935 mm ). Mechanical properties of forgings having greater cross sections shall be
negotiated between the manufacturer and the purchaser.
B
Material is identical to the corresponding numeric grade (that is, Grade F-2H = Grade F-2) except for the higher guaranteed minimum UTS, and may be dual certified
with its corresponding numeric grade. Grade F-2H, F-7H, F-16H, and F-26H are intended primarily for pressure vessel use.
C
The H grades were added in response to a user association request based on its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports where over 99%
met the 58 ksi minimum UTS.
D
Properties for material in transformed-beta condition.
E
Properties for material in the solution treated condition.
F
Properties for solution treated and aged condition-Moderate strength (determined by aging temperature).
G
Properties for solution treated and aged condition-High Strength (determined by aging temperature).
H
For product section or wall thickness values <1.0 in.
I
For product section or wall thickness values$1.0 in.
6.4 Sampling—Samples for chemical analysis shall be rep- obtained from the forgings on a test basis and a frequency as
resentative of material being tested. Except for hydrogen and agreed upon between the forger and the purchaser. The utmost
unless otherwise specified, chemical analysis of ingot or billet care must be used in sampling titanium for chemical analysis
shall be reported. Samples for hydrogen determination shall be because of its great affinity for elements such as oxygen,
B381−13 (2019)
TABLE 2 Chemical Requirements
A,B,C,D,E
Composition, Weight Percent
Other Other
Oxygen Iron Elements,Elements,
UNS Carbon, range Nitrogen,Hydrogen, range max. max.
Grade Number max. or max. max. max. or max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Cobalt Zirconium Niobium Tin Silicon each total
F-1 R50250 0.08 0.18 0.03 0.015 0.20 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-2/ R50400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-2H
F-3 R50550 0.08 0.35 0.05 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-4 R50700 0.08 0.40 0.05 0.015 0.50 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-5 R56400 0.08 0.20 0.05 0.015 0.40 5.5- 3.5- -- -- -- -- -- -- -- -- -- -- 0.1 0.4
6.75 4.5
F-6 R54520 0.08 0.20 0.03 0.015 0.50 4.0- -- -- -- -- -- -- -- -- -- 2.0- -- 0.1 0.4
6.0 3.0
F-7/ R52400 0.08 0.25 0.03 0.015 0.30 - - - - 0.12- -- -- -- -- -- -- -- -- -- 0.1 0.4
F-7H 0.25
F-9 R56320 0.08 0.15 0.03 0.015 0.25 2.5- 2.0- -- -- -- -- -- -- -- -- -- -- 0.1 0.4
3.5 3.0
F-11 R52250 0.08 0.18 0.03 0.015 0.20 - - - - 0.12- -- -- -- -- -- -- -- -- -- 0.1 0.4
0.25
F-12 R53400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - 0.6- 0.2- -- -- -- -- -- -- 0.1 0.4
0.9 0.4
F-13 R53413 0.08 0.10 0.03 0.015 0.20 - - - - - - 0.04- 0.4- -- -- -- -- -- -- -- 0.1 0.4
0.06 0.6
F-14 R53414 0.08 0.15 0.03 0.015 0.30 - - - - - - 0.04- 0.4- -- -- -- -- -- -- -- 0.1 0.4
0.06 0.6
F-15 R53415 0.08 0.25 0.05 0.015 0.30 - - - - - - 0.04- 0.4- -- -- -- -- -- -- -- 0.1 0.4
0.06 0.6
F-16/ R52402 0.08 0.25 0.03 0.015 0.30 - - - - 0.04- -- -- -- -- -- -- -- -- -- 0.1
...

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: B381 − 13 B381 − 13 (Reapproved 2019)
Standard Specification for
Titanium and Titanium Alloy Forgings
This standard is issued under the fixed designation B381; 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.
1. Scope*Scope
1.1 This specification covers 39 grades of annealed titanium and titanium alloy forgings as follows:
1.1.1 Grade F-1—UNS R50250. Unalloyed titanium,
1.1.2 Grade F-2—UNS R50400. Unalloyed titanium,
1.1.2.1 Grade F-2H—UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),
1.1.3 Grade F-3—UNS R50550. Unalloyed titanium,
1.1.4 Grade F-4—UNS R50700. Unalloyed titanium,
1.1.5 Grade F-5—UNS R56400. Titanium alloy (6 % aluminum, 4 % vanadium),
1.1.6 Grade F-6—UNS R54520. Titanium alloy (5 % aluminum, 2.5 % tin),
1.1.7 Grade F-7—UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium,
1.1.7.1 Grade F-7H—UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi (400 MPa)
minimum UTS),
1.1.8 Grade F-9—UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),
1.1.9 Grade F-11—UNS R52250. Unalloyed titanium plus 0.12 to 0.25 % palladium,
1.1.10 Grade F-12—UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),
1.1.11 Grade F-13—UNS R53413. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.12 Grade F-14—UNS R53414. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.13 Grade F-15—UNS R53415. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.14 Grade F-16—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,
1.1.14.1 Grade F-16H—UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium (Grade 16 with 58 ksi (400 MPa)
minimum UTS),
1.1.15 Grade F-17—UNS R52252. Unalloyed titanium plus 0.04 to 0.08 % palladium,
1.1.16 Grade F-18—UNS R56322. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 % to 0.08 % palladium,
1.1.17 Grade F-19—UNS R58640. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 %
molybdenum),
1.1.18 Grade F-20—UNS R58645. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 %
molybdenum) plus 0.04 to 0.08 % palladium,
1.1.19 Grade F-21—UNS R58210. Titanium alloy (3 % aluminum, 2.7 % niobium, 15 % molybdenum, 0.25 % silicon),
1.1.20 Grade F-23—UNS R56407. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitials, ELI),
1.1.21 Grade F-24—UNS R56405. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 to 0.08 % palladium,
1.1.22 Grade F-25—UNS R56403. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 to 0.8 % nickel and 0.04 to 0.08 %
palladium,
1.1.23 Grade F-26—UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,
1.1.23.1 Grade F-26H—UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi (400 MPa)
minimum UTS),
1.1.24 Grade F-27—UNS R52254. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,
1.1.25 Grade F-28—UNS R56323. Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.08 to 0.14 % ruthenium),
1.1.26 Grade F-29—UNS R56404. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08 to
0.14 % ruthenium),
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 July 1, 2013July 1, 2019. Published August 2013July 2019. Originally approved in 1961. Last previous edition approved in 20102013 as
ε1
B381 – 10B381 – 13. . DOI: 10.1520/B0381-13.10.1520/B0381-13R19.
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-381 in Section II of that Code.
*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
B381 − 13 (2019)
1.1.27 Grade F-30—UNS R53530. Titanium alloy (0.3 % cobalt, 0.05 % palladium),
1.1.28 Grade F-31—UNS R53532. Titanium alloy (0.3 % cobalt, 0.05 % palladium),
1.1.29 Grade F-32—UNS R55111. Titanium alloy (5 % aluminum, 1 % vanadium, 1 % tin, 1 % zirconium, 0.8 %
molybdenum),
1.1.30 Grade F-33—UNS R53442. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
1.1.31 Grade F-34—UNS R53445. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
1.1.32 Grade F-35—UNS R56340. Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 %
silicon),
1.1.33 Grade F-36—UNS R58450. Titanium alloy (45 % niobium),
1.1.34 Grade F-37—UNS R52815. Titanium alloy (1.5 % aluminum), and
1.1.35 Grade F-38—UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron).
NOTE 1—H grade material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed minimum
UTS, and may always be certified as meeting the requirements of its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H are intended primarily
for pressure vessel use.
1.2 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.
1.3 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:
B348 Specification for Titanium and Titanium Alloy Bars and Billets
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
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 bar, n—a hot rolled, forged or cold worked semifinished solid section product whose cross sectional area is less than 16
2 2
in. (10 323 mm ).
3.1.2 billet, n—a solid semifinished section, hot rolled or forged from an ingot, with a cross sectional area greater than 16 in.
(10 323 mm ).
3.1.3 forging, n—any product of work on metal formed to a desired shape by impact or pressure in hammers, forging machines,
upsetters presses or related forming equipment.
4. Ordering Information
4.1 Orders for forgings under this specification shall include the following information, as applicable:
4.1.1 Grade number (Section 1),
4.1.2 Tensile properties (Table 1),
4.1.3 Dimensions and tolerances (Section 10),
4.1.4 Sampling, mechanical properties (Section 8),
4.1.5 Methods for chemical analysis (Section 6),
4.1.6 Marking (Section 17),
4.1.7 Packaging (Section 17),
4.1.8 Certification (Section 16),
4.1.9 Disposition of rejected material (Section 14), and
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.
B381 − 13 (2019)
A
TABLE 1 Tensile Requirements
Tensile Strength, min Yield Strength (0.2 % Offset), min or Range
Elongation in 4D, Reduction of Area,
Grade
min, % min, %
ksi (MPa) ksi (MPa)
F-1 35 (240) 20 (138) 24 30
F-2 50 (345) 40 (275) 20 30
B,C
F-2H 58 (400) 40 (275) 20 30
F-3 65 (450) 55 (380) 18 30
F-4 80 (550) 70 (483) 15 25
F-5 130 (895) 120 (828) 10 25
F-6 120 (828) 115 (795) 10 25
F-7 50 (345) 40 (275) 20 30
B,C
F-7H 58 (400) 40 (275) 20 30
F-9 120 (828) 110 (759) 10 25
D
F-9 90 (620) 70 (483) 15 25
F-11 35 (240) 20 (138) 24 30
F-12 70 (483) 50 (345) 18 25
F-13 40 (275) 25 (170) 24 30
F-14 60 (410) 40 (275) 20 30
F-15 70 (483) 55 (380) 18 25
F-16 50 (345) 40 (275) 20 30
B,C
F-16H 58 (400) 40 (275) 20 30
F-17 35 (240) 20 (138) 24 30
F-18 90 (620) 70 (483) 15 25
D
F-18 90 (620) 70 (483) 12 20
E
F-19 115 (793) 110 (759) 15 25
F
F-19 135 (930) 130 to 159 (897) to (1096) 10 20
G
F-19 165 (1138) 160 to 185 (1104) to (1276) 5 20
E
F-20 115 (793) 110 (759) 15 25
F
F-20 135 (930) 130 to 159 (897) to (1096) 10 20
G
F-20 165 (1138) 160 to 185 (1104) to (1276) 5 20
E
F-21 115 (793) 110 (759) 15 35
F
F-21 140 (966) 130 to 159 (897) to (1096) 10 30
G
F-21 170 (1172) 160 to 185 (1104) to (1276) 8 20
F-23 120 (828) 110 (759) 10 25
D H I
F-23 120 (828) 110 (759) 7.5 , 6.0 25
F-24 130 (895) 120 (828) 10 25
F-25 130 (895) 120 (828) 10 25
F-26 50 (345) 40 (275) 20 30
B,C
F-26H 58 (400) 40 (275) 20 30
F-27 35 (240) 20 (138) 24 30
F-28 90 (620) 70 (483) 15 25
D
F-28 90 (620) 70 (483) 12 20
F-29 120 (828) 110 (759) 10 25
D H I
F-29 120 (828) 110 (759) 7.5 , 6.0 15
F-30 50 (345) 40 (275) 20 30
F-31 65 (450) 55 (380) 18 30
F-32 100 (689) 85 (586) 10 25
F-33 50 (345) 40 (275) 20 30
F-34 65 (450) 55 (380) 18 30
F-35 130 (895) 120 (828) 5 20
F-36 65 (450) 60 to 95 (410 to 655) 10 .
F-37 50 (345) 31 (215) 20 30
F-38 130 (895) 115 (794) 10 25
A 2 2
These properties apply to forgings having a cross section no greater than 3 in. (1935 mm ). Mechanical properties of forgings having greater cross sections shall be
negotiated between the manufacturer and the purchaser.
B
Material is identical to the corresponding numeric grade (that is, Grade F-2H = Grade F-2) except for the higher guaranteed minimum UTS, and may be dual certified
with its corresponding numeric grade. Grade F-2H, F-7H, F-16H, and F-26H are intended primarily for pressure vessel use.
C
The H grades were added in response to a user association request based on its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports where over 99 %
met the 58 ksi minimum UTS.
D
Properties for material in transformed-beta condition.
E
Properties for material in the solution treated condition.
F
Properties for solution treated and aged condition-Moderate strength (determined by aging temperature).
G
Properties for solution treated and aged condition-High Strength (determined by aging temperature).
H
For product section or wall thickness values <1.0 in.
I
For product section or wall thickness values $1.0 in.
4.1.10 Supplementary requirements (S1).
5. Materials and Manufacture
5.1 Material conforming to the latest revision of Specification B348 shall be used when producing forgings to this specification.
6. Chemical Composition
6.1 The grades of titanium and titanium alloy metal covered by this specification shall conform to the requirements as to
chemical composition prescribed in Table 2.
B381 − 13 (2019)
TABLE 2 Chemical Requirements
A,B,C,D,E
Composition, Weight Percent
Other Other
Oxygen Iron Elements,Elements,
UNS Carbon, range Nitrogen,Hydrogen, range max. max.
Grade Number max. or max. max. max. or max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Cobalt Zirconium Niobium Tin Silicon each total
F-1 R50250 0.08 0.18 0.03 0.015 0.20 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-2/ R50400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-2H
F-3 R50550 0.08 0.35 0.05 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-4 R50700 0.08 0.40 0.05 0.015 0.50 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4
F-5 R56400 0.08 0.20 0.05 0.015 0.40 5.5- 3.5- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
6.75 4.5
F-6 R54520 0.08 0.20 0.03 0.015 0.50 4.0- - - - - - - - - - - - - - - - - - - 2.0- - - 0.1 0.4
6.0 3.0
F-7/ R52400 0.08 0.25 0.03 0.015 0.30 - - - - 0.12- - - - - - - - - - - - - - - - - - - 0.1 0.4
F-7H 0.25
F-9 R56320 0.08 0.15 0.03 0.015 0.25 2.5- 2.0- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
3.5 3.0
F-11 R52250 0.08 0.18 0.03 0.015 0.20 - - - - 0.12- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.25
F-12 R53400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - 0.6- 0.2- - - - - - - - - - - - - 0.1 0.4
0.9 0.4
F-13 R53413 0.08 0.10 0.03 0.015 0.20 - - - - - - 0.04- 0.4- - - - - - - - - - - - - - - 0.1 0.4
0.06 0.6
F-14 R53414 0.08 0.15 0.03 0.015 0.30 - - - - - - 0.04- 0.4- - - - - - - - - - - - - - - 0.1 0.4
0.06 0.6
F-15 R53415 0.08 0.25 0.05 0.015 0.30 - - - - - - 0.04- 0.4- - - - - - - - - - - - - - - 0.1 0.4
0.06 0.6
F-16/ R52402 0.08 0.25 0.03 0.015 0.30 - - - - 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
F-16H 0.08
F-17 R52252 0.08 0.18 0.03 0.015 0.20 - - - - 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
0.08
F-18 R56322 0.08 0.15 0.03 0.015 0.25 2.5- 2.0- 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
3.5 3.0 0.08
F-19 R58640 0.05 0.12 0.03 0.02 0.30 3.0- 7.5- - - - - - - 3.5- 5.5- - - 3.5- - - - - - - 0.15 0.4
4.0 8.5 4.5 6.5 4.5
F-20 R58645 0.05 0.12 0.03 0.02 0.30 3.0- 7.5- 0.04- - - - - 3.5- 5.5- - - 3.5- - - - - - - 0.15 0.4
4.0 8.5 0.08 4.5 6.5 4.5
F-21 R58210 0.05 0.17 0.03 0.015 0.40 2.5- - - - - - - - - 14.0- - - - - - - 2.2- - - 0.15- 0.1 0.4
3.5 16.0 3.2 0.25
F-23 R56407 0.08 0.13 0.03 0.0125 0.25 5.5- 3.5- - - - - - - - - - - - - - - - - - - - - 0.1 0.4
6.5 4.5
F-24 R56405 0.08 0.20 0.05 0.015 0.40 5.5- 3.5- 0.04- - - - - - - - - - - - - - - - - - - 0.1 0.4
6.75 4.5 0.08
F-25 R56403 0.08 0.20 0.05 0.015 0.40 5.5- 3.5- 0.04- - - 0.3- - - - - - - - - - - - - - - 0.1 0.4
6.75 4.5 0.08 0.8
F-26/ R52404 0.08 0.25 0.03 0.015 0.30 - - - - - - 0.08- - - - - - - - - - - - - - - - - 0.1 0.4
F-16H 0.14
F-27 R52254 0.08 0.18 0.03 0.015 0.20
...