GB/T 5187-2021Copper and copper alloy foil (English PDF)

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020, "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents".

This document replaces GB/T 5187-2008 "Foil of copper and copper alloy"; compared with GB/T 5187-2008, in addition to structural adjustments and editorial changes, the main technical changes of this document are as follows.

a) Add the codes of copper and copper alloys (see 4.1);

b) Change the expression of alloy designation and status (see 4.1; 3.1 of version 2008);

c) Add foils of the designations of TU3(C10200), TP2(C12200), H66(C26800), TCr1.0-0.15(C18150), TSn1.5-0.8-0.06(C19040), TFe0.1(C19210), TFe2.5(C19400), BSi3.2-0.7 (C70250) (see 4.1);

d) Change the thickness range of oxygen-free copper and pure copper foil from 0.012 mm ~ 0.15 mm to 0.009 mm ~ 0.150 mm; change the width uniformly to <=650 mm (see 4.1; 3.1 of version 2008);

e) Change the width of brass foil whose thickness is 0.025 mm ~ 0.150 mm from <=600 mm to <=620 mm (see 4.1; 3.1 of version 2008);

f) Add the thickness and width allowable deviation of foil whose thickness is 0.009 mm ~ 0.012 mm (see 5.2.1);

g) Change the thickness allowable deviation for the thickness range of 0.012 mm ~ < 0.030 mm (see 5.2.1; 3.3.1 of version 2008);

h) Change the width allowable deviation; change the width allowable deviation to be specified according to classification of the foil width (see 5.2.2; 3.3.1 of version 2008);

i) Add the provision for thickness allowable deviation that "when the required thickness allowable deviations are all (+) or all (-) unidirectional deviations, the value is twice the standard value" (see Table 2);

j) Add the provision for width allowable deviation that "when the required width allowable deviations are all (+) or all (-) unidirectional deviations, the value is twice the standard value" (see Table 3).

k) Add regulations of mechanical properties for foils of TU3(C10200), TP2(C12200), H66(C26800), TCr1.0-0.11(C18150), TSn1.5-0.8-0.06(C19040), TFe0.1(C19210), TFe2.5(C19400), BSi3.2-0.7 (C70250) (see 5.3);

l) Change the mechanical properties of red copper softening annealing (O60); change the mechanical properties that are not classified according to the foil thickness TO the mechanical properties that are specified according to the classification of foil thickness (see 5.3; 3.4 of version 2008);

m) Add the chemical analysis method of foil in accordance with YS/T 482 or YS/T 483 (see 6.1);

n) Change the detection method of foil dimensions; change "the dimension of the foil shall be measured with the measuring tool of corresponding precision" to "the dimensions of the foil shall be tested in accordance with the provisions of GB/T 26303.3" (see 6.2; 4.2 of version 2008);

o) Change the foil tensile test method from "GB/T 228" to "GB/T 34505-2017"; at the same time, change the tensile sample number to comply with the provisions of GB/T 34505-2017 (see 6.3; 4.3 of version 2008);

p) Add the sampling method that is carried out in accordance with YS/T 668 (see 7.4);

q) Add the value rounding rules for the judgment of inspection results (see 7.5.1).

1 Scope

This document specifies the classification and marking, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and accompanying documents and order forms of copper and copper alloy foil.

This document applies to copper and copper alloy rolled foils (hereinafter referred to as foils) for the electronics, instrumentation and other industrial sectors.

2 Normative references

The following documents are normatively referenced in this document and are indispensable for its application. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document.

GB/T 4340.1, Metallic materials - Vickers hardness test - Part 1: Test method

GB/T 5121 (all parts), Methods for chemical analysis of copper and copper alloys

GB/T 5231, Designation and chemical composition of wrought copper and copper alloys

GB/T 8170, Rules of rounding off for numerical values & expression and judgment of limiting values

GB/T 8888, Wrought heavy non-ferrous metal products - packing, marking, transportation, storing and certificate of quality

GB/T 26303.3, Measuring methods for dimensions and shapes of wrought copper and copper alloys - Part 3: Sheets and strips

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Classification and marking

5 Technical requirements

6 Test method

7 Inspection rules

8 Marking, packaging, transportation, storage and accompanying documents

9 Order form content

The buyer can list the following contents in the order form for ordering the products that are listed in this document, according to its own needs. […]