GB/T 44508-2024 in English
VALIDWind energy generation systems—Specification for ring forgings of wind turbines
- Issued on:2024-09-29
- Implemented on:2025-04-01
- File Format:PDF
- Delivery:Via email within 5 business days
$301.00
| Standard No: | GB/T 44508-2024 |
| Document status: | VALID |
| Title in English: | Wind energy generation systems—Specification for ring forgings of wind turbines |
| Title in Chinese: | 风能发电系统 风力发电机组环形锻件技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2024-09-29 |
| Implemented on: | 2025-04-01 |
| ICS Classification: | 27.180-Wind turbine systems and other alternative sources of energy |
| Chinese Classification: | F11-Wind energy |
| Professional Classification: | GB-National Standard |
| Related Keywords: | wind energy generation systems specification
wind energy generation systems wind power generation systems ring forgings annular forgings |
| Related Topics: | wind energy
wind power generator set wind power the wind Energy generation Power generation ring Wind turbine systems Wind Turbine Environmental Impact of Wind Power Wind turbine grounding technology |
《GB/T 44508-2024风能发电系统 风力发电机组环形锻件技术规范》由TC50（全国风力发电标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
1. Background and significance of the standard
GB/T 44508-2024 Technical Specification for Ring Forgings of Wind Turbine Generator Sets in Wind Energy Generation Systems is the latest standard issued by the State Administration for Market Regulation and the State Administration of Standardization. This standard specifies detailed technical requirements, test methods and inspection rules for ring forgings of key components such as tower flanges and slewing rings in wind turbine generator sets, aiming to improve product quality and reliability and ensure the safe operation of wind power generation systems.
2. Scope and application of the standard
This standard applies to:
- Annular forgings for wind turbine tower flanges
- Annular forgings for slewing rings (including yaw and pitch)
- Other related annular forgings involving wind power generation systems
Note: Annular forgings refer to those with the smaller nominal width and height after final finishing. See Figure 1 for the specific definition.
3. Comparison of standard frameworks
| Standard dimensions | GB/T 44508—2024 | International standard comparison (EN) | Difference analysis |
|---|---|---|---|
| Material requirements | Use fine-grained killed steel, vacuum degree ≤133Pa | EN 10025-3/S355NL | Domestic standards are more stringent, emphasizing vacuum treatment |
| Forging ratio requirements | Mold casting ingot ≥3.0, continuous casting round billet ≥5.0 | - | Increase radial forging ratio (≥2.5) requirements |
| Heat treatment requirements | Refer to AMS 2750, furnace temperature uniformity ±10°C | AMS 2750 | Domestic standards refine the inspection frequency and accuracy requirements |
Case Study: Practical Application of Forging Ratio
Taking Q420NE steel as an example, when forging with die-cast ingots, the total forging ratio must be ≥5.0. By optimizing the upsetting and drawing processes, a company successfully increased the forging ratio to 5.2, significantly improving the mechanical properties of forgings.
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