GB/T 2520-2008 in English

《GB/T 2520-2008冷轧电镀锡钢板及钢带》由TC183（全国钢标准化技术委员会）归口，TC183SC6（全国钢标准化技术委员会钢板钢带分会）执行，主管部门为中国钢铁工业协会。
本标准规定了冷轧电镀锡钢板及钢带的分类和代号、尺寸、外形、重量、技术要求、检验和试验、包
装、标志和质量证明书等。
本标准适用于公称厚度为０．１５ ｍｍ～０．６０ ｍｍ 的一次冷轧电镀锡钢板及钢带以及公称厚度为
０．１２ｍｍ～０．３６ｍｍ 的二次冷轧电镀锡钢板及钢带（以下简称钢板及钢带）。

1 Scope

This standard specifies classification and code, dimension, shape, weight, technical requirements, inspection and test, packaging, marking and quality certificate.
This standard is applicable to single cold-reduced electrolytic tinplate with nominal thickness of 0.15mm~0.60mm and double cold-reduced electrolytic tinplate (hereinafter referred to as tinplate) with nominal thickness of 0.12mm~0.36mm.

2 Normative References

The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard.
GB/T 228 Metallic Materials - Tensile Testing at Ambient Temperature (GB/T 228-2002, eqv ISO 6892:1998)
GB/T 230.1 Metallic Rockwell Hardness Test - Part 1: Test Method (Scales A, B, C, D, E,F, G, H, K, N and T) (GB/T 230.1-2004, ISO 6508-1:1999, MOD)
GB/T 247 General Rule of Acceptance, Package, Mark and Certification for Steel Plates (Sheets) and Strips
GB/T 708 Dimension Shape Weight and Tolerance for Cold-rolled Steel Plates and Sheets
GB/T 728-1998 Ingot Tin
GB/T 1838 Tin Coated Sheet(Strip) - Tin Coating Mass Testing Method
GB/T 8170 Rules for Rounding off of Numberical Values
GB/T 17505 Steel and Steel Products: General Technical Delivery Requirements (GB/T 17505-1998, eqv ISO 404: 1992)
GB/T 22316 Test Methods of Corrosion Resistance for Electrolytic Tinplate
YB/T 136-1998 Tin plate - Testing Method of Oil and Chromium on Surface

3 Terms and Definitions

For the purposes of this standard, the following terms and definitions apply.
3.1 Electrolytic tinplate

Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification and Code
5 Information Required during Ordering
6 Dimension, Shape, Weight and Tolerances
7 Technical Requirements
8 Inspection and Test
9 Packaging, Marking and Quality Certificate
10 Rules for Rounding off of Numerical Values
11 Approximate Compare for Temper Codes in Relevant Standards at Home and abroad
Appendix A (Normative) Marking Method for Thick Surface of Differentially Coated Tinplate
Appendix C (Normative) Conversion of HR15T and HR30Tm
Appendix D (Informative) Compare between the Temper Codes in this Standard and those (or Steel Grade Codes) in Relevant Standard