GB/T 3620.1-2007 in English

《GB/T 3620.1-2007钛及钛合金牌号和化学成分》由TC243（全国有色金属标准化技术委员会）归口，TC243SC3（全国有色金属标准化技术委员会稀有金属分会）执行，主管部门为中国有色金属工业协会。
本标准规定了钛及钛合金产品的牌号、化学成分等。本标准适用于钛及钛合金压力加工的各种成品和半成品。

1 Scope

This part specifies the designation and composition, etc. of titanium and titanium alloy products.
This part is applicable to various finished products and semifinished products (including ingot) made of titanium and titanium alloy through press working.

2 Normative References

The following standards contain provisions which, through reference in this part, constitute provisions of this part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 3620.2 Titanium and Titanium Alloys - Permissible Variations of Chemical Composition for Wrought Product Analysis
GB/T 4698 (All Parts) Sponge Titanium, Titanium and Titanium Alloys
GB/T 8170 Rules for Rounding off of Numerical Values

3 Composition

3.1 Designation and composition
3.1.1 The designation and composition of titanium and titanium alloy products shall meet the requirements of Table 1.
3.1.2 Boron shall be added according to its nominal amount, and the measured data shall be reported for reference.

Foreword I
1 Scope
2 Normative References
3 Composition
4 Composition Analysis and Analysis Report
5 Others
Appendix A (Normative) Designations and Compositions of Deleted Titanium Alloys
Appendix B (Informative) Comparison of Old and New Domestic Designations of Unalloyed Titanium