GB/T 3459-2022 in English
VALIDTungsten bars
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Within 1 day
$70.00
| Standard No: | GB/T 3459-2022 |
| Document status: | VALID |
| Title in English: | Tungsten bars |
| Title in Chinese: | 钨条 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2022-12-30 |
| Implemented on: | 2023-07-01 |
| Superseding: |
GB/T 3459-2006 Tungsten bars and rods
|
| ICS Classification: | 77.150.99-Other products of non-ferrous metals |
| Chinese Classification: | H63-Rare refractory metals and their compounds |
| Professional Classification: | GB-National Standard |
| Related Keywords: | tungsten square bars
tw0 brand tungsten bars tw2 brand tungsten bars technological evolution gb/t3459-2022 tungsten bar standard tungsten square |
| Related Topics: | tungsten
Tungsten wavelength surgical tungsten Tungsten drop Thiourea Tungsten Tungsten GBT3459 GB/T 3459-2006 gb/t3459-2006 |
本文件规定了钨条的分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存、随行文件及订货单内容。本文件适用于粉末冶金法制取的纯钨条。
Introduction
Interpretation of GB/T3459-2022 Tantalum Bar Standard
1. Analysis of Standard Formulation Background and Technological Evolution
GB/T3459-2022 Tungsten Bar standard is a revision of the original standard GB/T3459-2006, mainly considering the following aspects:
- Added TW0 grade and requirements
- Adjusted the main purpose of TW1
- Updated the content requirements of impurity elements (such as Cr, S) in the chemical composition
- Optimized the size range of tungsten square and round bars
2. Classification and Use of Tantalum Bar
| Grade | Main purpose | Chemical composition characteristics |
|---|---|---|
| TW0 | High temperature alloy, high entropy alloy additives | Low impurity content, suitable for high performance alloy preparation |
| TW1 | High temperature alloy and other additives | Moderate impurity content, meet the needs of a variety of alloys |
| TW2 | Processing material raw materials | High purity requirements, suitable for precision machining |
| TW4 | Alloy additives | General performance, suitable for a variety of industrial applications |
3. Practical Application Case Analysis
Example 1: A high-temperature alloy manufacturer uses TW0 brand tungsten bars as the main raw material, and its products are widely used in the field of aerospace engines. The company strictly follows the GB/T3459-2022 standard for procurement and quality inspection to ensure that the chemical composition meets the requirements.
Example 2: A cemented carbide manufacturer uses TW2 brand tungsten bars as the raw material for processing, and its dimensional accuracy reaches < strong>12mm×12mm, which meets the requirements of precision processing. The company passed the GB/T6394-2017 standard test to ensure that the grain size is not less than < strong>1000 pieces/mm².
4. Dimensions and appearance quality requirements
According to GB/T3459-2022 standard, the size ranges of tungsten square bars and tungsten round bars are as follows:
| Grade | Width/Diameter | Length | Curvature requirement |
|---|---|---|---|
| TW2 | 14~30mm | ≥300mm | ≤4mm |
| TW0, TW1, TW4 | 5~18mm | ≥300mm | - |
5. Implementation Suggestions
- Strictly follow the standards for procurement and acceptance to ensure that the chemical composition meets the requirements.
- Establish a complete quality inspection system and equip with corresponding testing equipment (such as density meter, grain size meter).
- Choose the appropriate brand and specification according to actual use to avoid mixing.
- Strengthen employee training to ensure that operations meet standard requirements.
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