GB/T 3954-2022 in English
VALIDAluminium and aluminium alloys rod for electrical purpose
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 3954-2022电工圆铝杆》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
1. Standard background and revision history
GB/T3954-2022 "Electrical Round Aluminum Rod" is a comprehensive revision of GB/T3954-2014 and GB/T29920-2013, integrating the content of rare earth high-iron aluminum alloy rods for electrical use. The new standard has made important updates in chemical composition, mechanical properties, dimensional deviation, etc.
2. Comparison of standard frameworks
| Project | GB/T3954-2014 | GB/T29920-2013 | GB/T3954-2022 |
|---|---|---|---|
| Chemical composition | Aluminum content ≥99.5% | Rare earth aluminum content range | Optimize the proportion of aluminum and alloys |
| Mechanical properties | Tensile strength ≥100MPa | Tensile strength ≥120MPa | New heat resistance requirements |
| Dimensional deviation | ±5% | ±6% | Optimized to ±4% |
3. Technical parameter interpretation
Grades and states:The new standard adds grades such as 1R60, 1B85, and 8A07, and clarifies the applicable scope of states such as H14 and H12. Different grades have specific mechanical properties and electrical conductivity.
Chemical composition:GB/T3190 specifies the chemical composition requirements for aluminum and alloys, which can be supplemented by negotiation when the purchaser has special requirements.
Resistivity and conductivity:Table B.1 lists the resistivity and conductivity data of different grades at 20°C in detail, providing a reference for material selection.
4. Implementation Suggestions
Manufacturers: It is recommended to adopt GB/T3954-2022 standard for production, focusing on chemical composition control and heat resistance testing. At the same time, optimize the production process to meet higher mechanical requirements.
Purchasers: Specify the brand, state and diameter requirements when ordering, ensure that the product meets the technical indicators of GB/T3954-2022, and check the quality certification documents.
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