GB/T 29091-2012Copper and copper alloy designation and code system (English PDF)

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

This Standard code was prepared in reference wit America ASTM E527:2007 Metal and Alloy Numbering Provision (UNS).

1 Scope

This Standard specifies the designation of grade and code for copper and copper alloy.

This Standard is applicable to the processing, casting and recycling products of copper and copper alloy.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document.

GB/T 11086 Copper and Copper Alloy - Terms and Definitions

3 Terms

The following terms and definitions and those stipulated in GB/T 11086 are applicable to this document.

4 Naming Method of the Grade

4.3 Naming method for the grades of recycling copper and copper alloy Based on the naming method for the grades of recycling copper and copper alloy, the most front end of the grade shall be crowned with the first capital letter of "recycling", namely, the letter "R".

5 Arrangement Principles of Codes

The codes for copper and copper alloy consist of the first capital letter "T" in the Chinese Pinyin of "copper" or the first capital letter "C" in English word of "copper" and five Arabic numerals.

The code number range for processing copper and copper alloy is "10000~79999"; while the code number range for casting copper and copper alloy is "80000~99999".

In the same category, it shall be sequenced as per the copper content from high to low; if the copper content is equal, it shall be sequenced as per the first main additive element content from high to low.