ASTM B338-08

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Designation: B 338 – 08
Standard Specification for
Seamless and Welded Titanium and Titanium Alloy Tubes
1
for Condensers and Heat Exchangers
This standard is issued under the fixed designation B 338; 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 Department of Defense.
1. Scope 1.1.11.1 Grade 16H—Unalloyed titanium plus 0.04 to
2 0.08 % palladium (Grade 16 with 58 ksi minimum UTS),
1.1 This specification covers the requirements for 28
1.1.12 Grade 17—Unalloyed titanium plus 0.04 to 0.08 %
grades of titanium and titanium alloy tubing intended for
palladium,
surface condensers, evaporators, and heat exchangers, as fol-
1.1.13 Grade 18—Titanium alloy (3 % aluminum, 2.5 %
lows:
vanadium) plus 0.04 to 0.08 % palladium,
1.1.1 Grade 1—Unalloyed titanium,
1.1.14 Grade 26—Unalloyed titanium plus 0.08 to 0.14 %
1.1.2 Grade 2—Unalloyed titanium,
ruthenium,
1.1.2.1 Grade 2H—Unalloyed titanium (Grade 2 with 58
1.1.14.1 Grade 26H—Unalloyed titanium plus 0.08 to
ksi minimum UTS),
0.14 % ruthenium (Grade 26 with 58 ksi minimum UTS),
1.1.3 Grade 3—Unalloyed titanium,
1.1.15 Grade 27—Unalloyed titanium plus 0.08 to 0.14 %
1.1.4 Grade 7—Unalloyed titanium plus 0.12 to 0.25 %
ruthenium,
palladium,
1.1.16 Grade 28—Titanium alloy (3 % aluminum, 2.5 %
1.1.4.1 Grade 7H—Unalloyed titanium plus 0.12 to 0.25 %
vanadium) plus 0.08 to 0.14 % ruthenium,
palladium (Grade 7 with 58 ksi minimum UTS),
1.1.17 Grade 30—Titanium alloy (0.3 % cobalt, 0.05 %
1.1.5 Grade 9—Titanium alloy (3 % aluminum, 2.5 % va-
palladium),
nadium),
1.1.18 Grade 31—Titanium alloy (0.3 % cobalt, 0.05 %
1.1.6 Grade 11—Unalloyed titanium plus 0.12 to 0.25 %
palladium),
palladium,
1.1.19 Grade 33—Titanium alloy (0.4 % nickel, 0.015 %
1.1.7 Grade 12—Titanium alloy (0.3 % molybdenum,
palladium, 0.025 % ruthenium, 0.15 % chromium),
0.8 % nickel),
1.1.20 Grade 34—Titanium alloy (0.4 % nickel, 0.015 %
1.1.8 Grade 13—Titanium alloy (0.5 % nickel, 0.05 % ru-
palladium, 0.025 % ruthenium, 0.15 % chromium),
thenium),
1.1.21 Grade 35—Titanium alloy (4.5 % aluminum, 2 %
1.1.9 Grade 14—Titanium alloy (0.5 % nickel, 0.05 % ru-
molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),
thenium),
1.1.22 Grade 36—Titanium alloy (45 % niobium),
1.1.10 Grade 15—Titanium alloy (0.5 % nickel, 0.05 %
1.1.23 Grade 37—Titanium alloy (1.5 % aluminum), and
ruthenium),
1.1.24 Grade 38—Titanium alloy (4 % aluminum, 2.5 %
1.1.11 Grade 16—Unalloyed titanium plus 0.04 to 0.08 %
vanadium, 1.5 % iron).
palladium,
NOTE 1—H grade material is identical to the corresponding numeric
grade (that is, Grade 2H = Grade 2) except for the higher guaranteed
1
This specification is under the jurisdiction of ASTM Committee B10 on
minimum UTS, and may always be certified as meeting the requirements
Reactive and Refractory Metals and Alloys and is the direct responsibility of
of its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H are
Subcommittee B10.01 on Titanium.
intended primarily for pressure vessel use.
Current edition approved May 15, 2008. Published June 2008. Originally
TheHgradeswereaddedinresponsetoauserassociationrequestbased
approved in 1958. Last previous edition approved in 2006 as B 338 – 06a.
2
on its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports,
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB-338 in Section II of that Code. where over 99 % met the 58 ksi minimum UTS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B338–08
1.2 Tubingcoveredbythisspecificationshallbeheattreated 4.1.8 Special mechanical properties, if desired (Section 8
by at least a stress relief as defined in 5.3. and Table 3),
1.3 The values stated in inch-pound units are to be regarded 4.1.9 Nondestructive tests (Section 11),
as standard. The values given in parentheses are mathematical 4.1.10 Packaging (Section 23),
conversions to SI units that are provided for information only 4.1.11 Inspection (Section 17), and
and are not considered standard. 4.1.12 Certification (Section 21).
NOTE 2—Tube is available to specified outside diameter and wall
2. Referenced Documents
thickness (state minimum or average wall).
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2.1 ASTM Standards:
A 370 Test Methods and Definitions for MechanicalTesting 5. Materials and Manufacture
of Steel Products
5.1 Seamless tube shall be made from hollow billet by any
E8 Test Methods for Tension Testing of Metallic Materials
cold reducing or cold drawing pro
...