ASTM B348-06a

    Standard Specification for Titanium and Titanium Alloy Bars and Billets

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    1. Scope

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

    1.1.1 Grade 1 Unalloyed titanium,

    1.1.2 Grade 2Unalloyed titanium,

    Grade 2H

    Unalloyed titanium (Grade 2 with 58 ksi minimum UTS),

    1.1.3 Grade 3Unalloyed titanium,

    1.1.4 Grade 4 Unalloyed titanium,

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

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

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

    Grade 7H

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

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

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

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

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

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

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

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

    Grade 16H

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

    1.1.15 Grade 17 Unalloyed 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 21 Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon),

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

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

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

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

    Grade 26H

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

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

    1.1.25 Grade 28Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.08-0.14 % ruthenium),

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

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

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

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

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

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

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

    1.1.33 Grade 36 Titanium alloy (45 % niobium),

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

    1.1.35 Grade 38 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.

    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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E8 Test Methods for Tension Testing of Metallic Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E539 Test Method for Analysis of Titanium Alloys by X-Ray Fluorescence Spectrometry

    E1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique

    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


    ICS Code

    ICS Number Code 77.150.50 (Titanium products)

    UNSPSC Code

    UNSPSC Code 11101711(Non ferrous alloy); 30262000(Titanium bars and sheets)


    DOI: 10.1520/B0348-06A

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