GB/T 8601-2021 in English
VALIDForged and rolled solid wheels for railway
- Issued on:2021-10-11
- Implemented on:2022-05-01
- File Format:PDF
- Delivery:Via email within 5 business days
$437.00
| Standard No: | GB/T 8601-2021 |
| Document status: | VALID |
| Title in English: | Forged and rolled solid wheels for railway |
| Title in Chinese: | 铁路用辗钢整体车轮 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2021-10-11 |
| Implemented on: | 2022-05-01 |
| Superseding: |
GB/T 8601-1988 Rolled solid wheels for railway
|
| Professional Classification: | GB-National Standard |
| Related Keywords: | railway introduction standard revision background
steel wheels solid wheels wheels room temperature performance added -20℃ impact |
| Related Topics: | gb/t8601
GB/T 8601-1988 gb/t+8601-1988 Rolling over the pronunciation Locomotive Rolled Steel Integral Wheel gb8601 rolling area GBT8601 GB/T 8601-2021 National Standard Railway Wheels Steel wheel model Railway wheel steel Railway wheel stopper |
《GB/T 8601-2021铁路用辗钢整体车轮》由TC183（全国钢标准化技术委员会）归口，TC183SC8（全国钢标准化技术委员会型钢分会）执行，主管部门为中国钢铁工业协会。
Introduction
Standard Revision Background and Technology Evolution
GB/T8601-2021, as an important standard in the field of railway rolled steel wheels, replaces the 1988 version of the standard that has been implemented for 33 years. This revision reflects the rapid development of China's rail transit equipment technology, mainly responding to the new requirements for wheel performance of high-speed trains (250km/h) and heavy-duty trucks (axle weight 33t).
Comparison of core technology changes
| Technical dimensions | 1988 version regulations | 2021 version changes |
|---|---|---|
| Grading system | A/B grade simple grading | 1/2/3 grade speed-axle weight matrix (Table 1) |
| Material grade | CL45MnSiV, etc. | Added CL50/55/65/70, cancelled CL45MnSiV |
| Mechanical properties | Focus on room temperature performance | Added -20℃ impact and fatigue performance (Appendix B) |
Analysis of key performance indicators
6.3 Mechanical performance requirements
Taking CL70 steel as an example, the performance requirements of its rim are as follows:
- Tensile strength ≥1050MPa
- Surface hardness ≥321HBW
- -20℃ impact energy ≥13J
Compared with CL50 steel, the strength is increased by about 28%, which is suitable for higher axle load conditions.
Implementation suggestions
- Material selection: CL70 is preferred for level 1 wheels, and CL50 is optional for level 3
- Process control: Focus on non-metallic inclusions ≤ level 1.5 in Article 6.5
- Detection points: Ultrasonic flaw detection adopts the φ1.0mm flat-bottom hole standard (Article 6.7)
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