GB/T 37591-2019 in English
VALIDCold-rolled non-grain oriented electrical steel strip specialized for large generators with power of 700 MW or higher
- Issued on:2019-06-04
- Implemented on:2020-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$127.00
| Standard No: | GB/T 37591-2019 |
| Document status: | VALID |
| Title in English: | Cold-rolled non-grain oriented electrical steel strip specialized for large generators with power of 700 MW or higher |
| Title in Chinese: | 700MW及以上级大电机用冷轧无取向电工钢带 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2019-06-04 |
| Implemented on: | 2020-05-01 |
| ICS Classification: | 77.140.40-Steels with special magnetic properties |
| Chinese Classification: | H53-Electrotechnical steel |
| Professional Classification: | GB-National Standard |
| Related Keywords: | electrical steel strip
steel strip cold-rolled non-oriented electrical steel strips full-process cold-rolled non-oriented electrical steel strips steel association |
| Related Topics: | steel belt
cold rolled orientation and superior Electrical steel strip GBT37591 GB/T 37591-2019 electrical steel Cold rolled oriented silicon steel testing standards |
《GB/T 37591-2019700MW及以上级大电机用冷轧无取向电工钢带》由TC183（全国钢标准化技术委员会）归口，TC183SC6（全国钢标准化技术委员会钢板钢带分会）执行，主管部门为中国钢铁工业协会。
Introduction
1. Background and significance of standard formulation
GB/T 37591-2019 standard specifies the terms and definitions, symbols and grades, general requirements, technical requirements, inspection and testing, re-inspection and determination, packaging, marking and quality certificates for cold-rolled non-oriented electrical steel strips for large motors of 700MW and above. This standard was proposed by the China Iron and Steel Association and is applicable to the manufacture of full-process cold-rolled non-oriented electrical steel strips for large hydro-generators of 700~MW and above.
2. Comparison of standard frameworks
| Standard dimensions | GB/T 37591—2019 requirements | Implementation suggestions |
|---|---|---|
| Magnetic performance test | The total loss P value must comply with the provisions of Table 2 and be tested using the GB/T3655 or GB/T13789 method. | It is recommended to use the Epstein square circle method combined with a single-piece tester to ensure data accuracy. |
| Geometric characteristics | Thickness deviation, width deviation, sickle bend, etc. must comply with the provisions of Table 3. | It is recommended to calibrate the measuring equipment regularly to ensure dimensional accuracy. |
| Mechanical properties | Tensile strength and elongation after fracture must meet the requirements of Table 4. | It is recommended to use GB/T228.1-2010 standard for tensile testing to ensure the representativeness of the sample. |
3. Implementation suggestions
Production link:It is recommended that enterprises establish a complete quality management system to ensure that each batch of products meets the standard requirements. Focus on magnetic performance testing, geometric characteristics measurement and mechanical performance verification.
Inspection link:It is recommended to use automated testing equipment to improve efficiency and accuracy. At the same time, strengthen personnel training to ensure standardized operation.
Application link:It is recommended that users select the appropriate grade of steel strip according to the specific application scenario, and refer to the technical parameters in the standard for selection.
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