ASTM B381-21

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: Published
• Publication Date: 31-Oct-2021
• ICS: 77.150.50 - Titanium products
• Technical Committee: B10 - Reactive and Refractory Metals and Alloys
• Drafting Committee: B10.01 - Titanium

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:B381 −21
Standard Specification for
1
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
2
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),
1
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.
Current edition approved Nov. 1, 2021. Published November 2021. Originally molybdenum),
approved in 1961. Last previous edition approved in 2019 as B381–13 (2019).
1.1.30 Grade F-33—UNS R53442. Titanium alloy (0.4%
DOI: 10.1520/B0381-21.
2
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
1

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B381−21
1.1.31 Grade F-34—UNS R53445. Titanium alloy (0.4% E2994Test Method for Analysis of Titanium and Titanium
nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % AlloysbySparkAtomicEmissionSpectrometryandGlow
chromium), Discharge Atomic Emission Spectrometry (Performance-
1.1.32 Grade F-35—UNS R56340. Titanium alloy (4.5% Based Method)
aluminum, 2% molybdenum, 1.6% vanadium, 0.5% iron,
3. Terminology
0
...

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 (Reapproved 2019) B381 − 21
Standard Specification for
1
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
2
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
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, 2019Nov. 1, 2021. Published July 2019November 2021. Originally approved in 1961. Last previous edition approved in 20132019 as
B381 – 13.B381 – 13 (2019). DOI: 10.1520/B0381-13R19.10.1520/B0381-21.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-381 in Section II of that Code.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B381 − 21
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),
1.1.27 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
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