GB/T 32930-2016 in English
VALIDMicrocrystalline cemented carbide rod
- Issued on:2016-08-29
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$136.00
| Standard No: | GB/T 32930-2016 |
| Document status: | VALID |
| Title in English: | Microcrystalline cemented carbide rod |
| Title in Chinese: | 微晶硬质合金棒材 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2016-08-29 |
| Implemented on: | 2017-07-01 |
| ICS Classification: | 77.160-Powder metallurgy |
| Chinese Classification: | H72-Powder metallurgy material and product |
| Professional Classification: | GB-National Standard |
| Related Keywords: | microcrystalline cemented carbide rods
carbide rod introduction carbide rods tungsten carbide standard content chemical composition requirements |
| Related Topics: | crystal
quality crystal eutectic properties light alloy material microcrystalline domain Amorphous alloy light alloy material Alloy bar GBT32930 GB/T 32930-2016 Carbide particle size |
《GB/T 32930-2016微晶硬质合金棒材》由TC243（全国有色金属标准化技术委员会）归口，TC243SC4（全国有色金属标准化技术委员会粉末冶金分会）执行，主管部门为中国有色金属工业协会。
Introduction
1. Standard Overview
GB/T32930-2016 "Microcrystalline Cemented Carbide Rods" standard was officially implemented on July 1, 2017, and stipulates the requirements, test methods, inspection rules and quality assurance of microcrystalline cemented carbide rods.
2. Background of Standard Formulation
This standard is managed by the National Technical Committee for Standardization of Nonferrous Metals, and the main drafting units are Xiamen Jinlu Special Alloy Co., Ltd. and Xiamen Tungsten Co., Ltd. (Technical Center), aiming to improve the quality and technical level of microcrystalline cemented carbide rods.
3. Comparison of standard frameworks
| Standard dimensions | GB/T32930-2016 | GB Other Standards |
|---|---|---|
| Product classification | Rough bars and finely ground bars | Not specified |
| Chemical composition | To be determined by negotiation between the supply and demand parties | Indicators need to be clarified |
| Mechanical properties | Rockwell hardness ≥91.3, flexural strength ≥3600MPa | Not specified |
4. Interpretation of the standard content
Chemical composition requirements:The chemical composition of the product is determined by negotiation between the supply and demand parties, and the tungsten carbide (WC) content must meet the process requirements.
Organization structure indicators:The average grain size of WC should be between 0.3μm and 0.8μm, and the porosity, uncombined carbon and macroscopic pores must meet the requirements of Table 1.
Mechanical property requirements:The Rockwell hardness should be ≥91.3, the flexural strength should be ≥3600MPa, and other properties are determined by negotiation between the supply and demand parties.
5. Implementation Suggestions
To ensure the quality of microcrystalline cemented carbide rods, manufacturers are advised to:
- Strictly control chemical composition and organizational structure parameters
- Establish a complete quality inspection system
- Strengthen product consistency management
- Pay attention to the study and application of technical standards
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 38981-2020 in English
Sintered-metal injection-moulded materials—Specifications
2020-07-21 -
GB/T 26047-2022 in English
Insulators of primary lithium battery for pillar
2022-07-11 -
GB/T 2081-2018 in English
Indexable hardmetal(carbide)inserts with wiper edges,without fixing hole—Dimensions
2018-09-17 -
GB/T 34508-2017 in English
Additive manufacturing with TC4 alloys powder by bed electron beam melting
2017-10-14 -
GB/T 4164-2008 in English
Metallic powders - Determination of hydrogen reducible oxygen content
2008-08-11 -
GB/T 6804-2008 in English
Sintered mital bushes - Determination of radial crushing strength
2008-08-11
