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Normas ASTM – AENOR
ASTM B348-08a

ASTM B348-08a

Standard Specification for Titanium and Titanium Alloy Bars and Billets

Fecha:
2010-12-31 /Historical
Superseeded by:
Abstract:

This specification covers annealed bars and grills made from titanium or its alloys. All material grades covered should conform to the required chemical composition requirements. Elements that are intentionally added to the melt should be identified, analyzed and reported in the chemical analysis. Specimens for tension tests should be machined and the tensile properties determined using a specified strain rate through the yield strength and at an increasing rate. Each annealed material may be furnished as either descaled, sandblasted, ground, or rough turned.

Scope:

1.1 This specification covers annealed titanium and titanium alloy bars and billets as follows:

1.1.1 Grade 1Unalloyed titanium,

1.1.2 Grade 2Unalloyed titanium,

1.1.2.1 Grade 2HUnalloyed titanium (Grade 2 with 58 ksi minimum UTS),

1.1.3 Grade 3Unalloyed titanium,

1.1.4 Grade 4Unalloyed titanium,

1.1.5 Grade 5Titanium alloy (6 % aluminum, 4 % vanadium),

1.1.6 Grade 6Titanium alloy (5 % aluminum, 2.5 % tin),

1.1.7 Grade 7Unalloyed titanium plus 0.12 to 0.25 % palladium,

1.1.7.1 Grade 7HUnalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi minimum UTS),

1.1.8 Grade 9Titanium alloy (3 % aluminum, 2.5 % vanadium),

1.1.9 Grade 11Unalloyed titanium plus 0.12 to 0.25 % palladium,

1.1.10 Grade 12Titanium alloy (0.3 % molybdenum, 0.8 % nickel),

1.1.11 Grade 13Titanium alloy (0.5 % nickel, 0.05 % ruthenium),

1.1.12 Grade 14Titanium alloy (0.5 % nickel, 0.05 % ruthenium),

1.1.13 Grade 15Titanium alloy (0.5 % nickel, 0.05 % ruthenium),

1.1.14 Grade 16Unalloyed titanium plus 0.04 to 0.08 % palladium,

1.1.14.1 Grade 16HUnalloyed titanium plus 0.04 to 0.08 % palladiumm (Grade 16 with 58 ksi minimum UTS),

1.1.15 Grade 17Unalloyed titanium plus 0.04 to 0.08 % palladium,

1.1.16 Grade 18Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium,

1.1.17 Grade 19Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),

1.1.18 Grade 20Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 %0.08 % palladium,

1.1.19 Grade 21Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon),

1.1.20 Grade 23Titanium alloy (6 % aluminum, 4 % vanadium with extra low interstitial elements, ELI),

1.1.21 Grade 24Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium,

1.1.22 Grade 25Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 % to 0.8 % nickel and 0.04 % to 0.08 % palladium,

1.1.23 Grade 26Unalloyed titanium plus 0.08 to 0.14 % ruthenium,

1.1.23.1 Grade 26HUnalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi minimum UTS),

1.1.24 Grade 27Unalloyed titanium plus 0.08 to 0.14 % ruthenium,

1.1.25 Grade 28Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.080.14 % ruthenium),

1.1.26 Grade 29Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08 to 0.14 % ruthenium),

1.1.27 Grade 30Titanium alloy (0.3 % cobalt, 0.05 % palladium),

1.1.28 Grade 31Titanium alloy (0.3 % cobalt, 0.05 % palladium),

1.1.29 Grade 32Titanium alloy (5 % aluminum, 1 % tin, 1 % zirconium, 1 % vanadium, 0.8 % molybdenum),

1.1.30 Grade 33Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),

1.1.31 Grade 34Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),

1.1.32 Grade 35Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),

1.1.33 Grade 36Titanium alloy (45 % niobium),

1.1.34 Grade 37Titanium alloy (1.5 % aluminum), and

1.1.35 Grade 38Titanium 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.

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.

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.

Keywords:
bar; billet; titanium; titanium alloy; Palladium (titanium plus palladium)--specifications; Titanium plus palladium--specifications; Titanium (Ti)/alloys--specifications; UNS R50250 (Ti, unalloyed); UNS R50400 (Ti, unalloyed); UNS R50550 (Ti, unalloyed); UNS R50700 (Ti, unalloyed); UNS R52250 (Ti, low-alloyed); UNS R52400 (Ti, low-alloyed); UNS R53400 (Ti alloy); UNS R54520 (Ti alloy); UNS R56400 (Ti alloy); UNS R58030 (Ti alloy)
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