ASTM B861-08a

    Standard Specification for Titanium and Titanium Alloy Seamless Pipe

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    1. Scope

    1.1 This specification covers the requirements for 34 grades of titanium and titanium alloy seamless pipe intended for general corrosion resisting and elevated temperature service as follows:

    1.1.1 Grade 1Unalloyed titanium, low oxygen,

    1.1.2 Grade 2Unalloyed titanium, standard oxygen,

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

    1.1.3 Grade 3Unalloyed titanium, medium oxygen,

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

    1.1.5 Grade 7Unalloyed titanium plus 0.12 to 0.25 % palladium, standard oxygen,

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

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

    1.1.7 Grade 11Unalloyed titanium plus 0.12 to 0.25 % palladium, low oxygen,

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

    1.1.9 Grade 13Titanium alloy (0.5 % nickel, 0.05 % ruthenium), low oxygen,

    1.1.10 Grade 14Titanium alloy (0.5 % nickel, 0.05 % ruthenium), standard oxygen,

    1.1.11 Grade 15Titanium alloy (0.5 % nickel, 0.05 % ruthenium), medium oxygen,

    1.1.12 Grade 16Unalloyed titanium plus 0.04 to 0.08 % palladium, standard oxygen,

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

    1.1.13 Grade 17Unalloyed titanium plus 0.04 to 0.08 % palladium, low oxygen,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    1.1.28 Grade 36Titanium alloy (45 % niobium),

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

    1.1.30 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.


    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

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    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

    ANSI/ASME Standards

    B 36.10 Carbon, Alloy and Stainless Steel Pipes

    B 36.19M-1985 Stainless Steel Pipe

    B.1.20.1 Pipe Threads, General Purpose (Inch)


    ICS Code

    ICS Number Code 77.150.50 (Titanium products)

    UNSPSC Code

    UNSPSC Code 40171624(Industrial titanium pipe); 12141746(Titanium Ti)


    DOI: 10.1520/B0861-08A

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