GB/T 37502-2019Copper nickel alloy rods for vacuum electron devices structure material (English PDF)
电真空器件结构材料用铜镍合金棒
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
May 1, 2020
Scope
GB/T 37502-2019 is the English-translated version of 电真空器件结构材料用铜镍合金棒.
GB/T 37502-2019 specifies the product classification, the technical requirements, the test methods and the inspection rules for the copper-nickel alloy bars used as structural material in electric vacuum devices, together with the provisions on signs, packaging, shipping, storage, quality certificates and the order form or contract.
Clause 1 states that it applies to copper-nickel alloy round bars used in the electronics industry, called bars in the rest of the text. Clause 2 cites GB/T 228.1-2010, GB/T 3310, GB/T 5121 in all parts, GB/T 5231, GB/T 5235, GB/T 8170, GB/T 8888, GB/T 26303.2, YS/T 325 in all parts, YS/T 336, YS/T 448, YS/T 482, YS/T 668 and YS/T 815.
Clause 3, Product categories, opens with the grade, code, status and specifications of the bar, which have to comply with the requirements of Table 1. The draft on the page breaks off at that point, so Table 1 itself and the clauses on technical requirements, test methods and inspection rules are not shown.
The standard was proposed by the China Nonferrous Metals Industry Association and is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). It was issued on June 4, 2019 and has applied since May 1, 2020.
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Document preview — GB/T 37502-2019
National Standard of the People's Republic of China
- ICS
- 77.150.30
- Classification
- H 62
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Product Categories
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the product classification, technical requirements, test methods, inspection rules, signs, packaging, and copper-nickel alloy bars for electric vacuum devices. Shipping, storage and quality certificates and order forms (or contracts).
This standard applies to copper-nickel alloy round bars (hereinafter referred to as bars) used in the electronics industry.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 228.1-2010 tensile testing of metallic materials - Part 1
GB/T 3310 copper and copper alloy bar ultrasonic testing method
GB/T 5121 (all parts) Copper and copper alloy chemical analysis methods
GB/T 5231 processing copper and copper alloy grades and chemical composition
GB/T 5235 Processing of nickel and nickel alloy chemical composition and product shape
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 8888 heavy non-ferrous metal processing products packaging, marking, transportation, storage and quality certificate
GB/T 26303.2 Methods of measuring the dimensions of copper and copper alloys - Part 2: bars, wires, profiles
YS/T 325 (all parts) Nickel-copper alloy chemical analysis method
YS/T 336 copper, nickel and its alloy pipes and bars fracture test method
YS/T 448 copper and copper alloy casting and processing products macroscopic inspection method
YS/T 482 Copper and copper alloys - Methods
YS/T 668 copper and copper alloy physical and chemical detection sampling method
YS/T 815 copper and copper alloy mechanical properties and process properties sample preparation method
3 Product Categories
3.1 Brand, code, status, specifications
The grade, code, status and specifications of the bar shall comply with the requirements of Table 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 228.1-2010Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 3310Ultrasonic testing method of copper and copper alloy bars
- GB/T 5231Designation and chemical composition of wrought copper and copper alloys
- GB/T 5235Designation and chemical composition of wrought nickel and nickel alloy
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 8888Wrough heavy non-ferrous metal products-packing,marking,transportation, storing and cetificate of quality
GB/T 5121
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Related Standards
GB/T 26303.2-2010 — Measuring methods for dimensions and shapes of wrought copper and copper alloy - Part 2: Rod，wire and profile
GB/T 3310-2023 — Ultrasonic testing method of copper and copper alloy bars
GB/T 33100-2025 — Test methods of belt flexing fatigue for dipped cords
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