GB/T 2965-2023Titanium and titanium alloy bars (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 2965-2007 "Titanium and Titanium Alloy Rods". Compared with GB/T 2965-2007, except for structural adjustment and editing In addition to sexual changes, the main technical changes are as follows.

a) Added "Classification and Labeling" (see Chapter 4);

b) Changed the product specification range (see 4.1, 3.1.1 of the 2007 version);

c) The technical requirements for TA1, TA2, TA3, and TA5 products have been changed, and TA4 has been deleted (see Chapter 5, Chapter 3 of the 2007 edition and Appendix A);

d) Added technical requirements for TA1G, TA2G, TA3G, TA4G, TA18, TB6, TC17, TC18, TC21, and TC25 products (See Chapter 5);

e) The overall dimensions and their allowable deviations have been changed (see 5.2, 3.4 of the 2007 edition);

f) The analysis method of chemical composition has been changed (see 6.1, 4.1 of the 2007 edition);

g) Changed the inspection method of overall dimensions and their allowable deviations (see 6.2, 4.8 of the 2007 edition);

h) The test method for room temperature tensile properties has been changed (see 6.3, 4.2 of the 2007 edition);

i) Changed the test method for high temperature tensile properties (see 6.4, 4.3 of the 2007 edition);

j) Changed the test method of beta transition temperature (see 6.6, 4.5 of the 2007 edition);

k) Changed the sampling requirements (see Table 4, Table 6 of the 2007 version);

l) The judgment of inspection results has been changed (see 7.5, 5.5 of the 2007 edition);

m) The grade, chemical composition and room temperature mechanical properties of industrial pure titanium in the old standard in Appendix B are deleted (see Appendix B of the 2007 version).

1 Scope

This document specifies the classification and marking, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of titanium and titanium alloy bars. Save the accompanying documents and order form contents.

This document applies to titanium and titanium alloy round and rectangular bars produced by forging and rolling.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 228.1-2021 Tensile testing of metallic materials Part 1: Room temperature test method

GB/T 228.2 Tensile testing of metallic materials Part 2: High temperature test methods

GB/T 2039 Uniaxial tensile creep test method for metallic materials

GB/T 3620.1 Titanium and titanium alloy grades and chemical compositions

GB/T 3620.2 Allowable deviations in chemical composition of titanium and titanium alloy processed products

GB/T 4698 (all parts) Chemical analysis methods for titanium sponge, titanium and titanium alloys

GB/T 5168 High and low magnification structural inspection methods for titanium and titanium alloys

GB/T 5193 Ultrasonic inspection method for titanium and titanium alloy processed products

GB/T 6611 Terminology and metallographic diagrams of titanium and titanium alloys

GB/T 8180 Packaging, marking, transportation and storage of titanium and titanium alloy processed products

GB/T 23604 Sampling method for testing mechanical properties of titanium and titanium alloy products

GB/T 23605 Method for determination of beta transition temperature of titanium alloys

GB/T 34647 Titanium and titanium alloy product status codes

GB/T 38982 Testing method for overall dimensions of titanium and titanium alloy processed products

GB/T 39799 Dimensions, shapes, weights and tolerances of titanium and titanium alloy rods and wires

YS/T 1262 Chemical analysis method for titanium sponge, titanium and titanium alloys. Determination of multi-element content by inductively coupled plasma atomic emission. radioactive spectroscopy

3 Terms and definitions

The terms and definitions defined in GB/T 6611, GB/T 34647 and GB/T 38982 apply to this document.

4 Classification and tagging