Product Specification: LION® R30031 (Stellite 31 / X-40 Type)
LION® R30031 is a high-strength, cobalt-base superalloy designed for the most demanding high-temperature environments. Unlike wear-focused Tribaloy grades, R30031 (traditionally known as Stellite 31 or X-40) is optimized for creep resistance 和 stress-rupture strength at elevated temperatures up to 1000°C.
1. 主要技術特點
- Superior Stress-Rupture Life: Outperforms many nickel-based alloys in high-temperature stress environments.
- Thermal Fatigue Resistance: Excellent durability under rapid thermal cycling and mechanical shock.
- High-Temperature Oxidation: Resistant to scaling and environmental attack in atmospheres up to 1150°C (2100°F).
- Balanced Ductility: Offers better elongation (approx. 10%) than high-hardness wear alloys, reducing the risk of catastrophic failure under impact.
2. 技術規格（標稱成分）
| 元素 | 象徵 | 重量%（典型值） |
|---|---|---|
| 鈷 | 鈷 | 平衡 |
| 鉻 | 鉻 | 24.5 – 26.5% |
| 鎳 | 在 | 9.5 – 11.5% |
| Tungsten | 瓦 | 7.0 – 8.0% |
| 碳 | C | 0.45 – 0.55% |
| 鐵 | 鐵 | ≤ 2.0% |
3. Mechanical & Physical Properties
- 硬度： 25 – 35 HRC
- Tensile Strength (UTS): ≥ 740 MPa
- 密度： 8.61 g/cm³
- 伸長： ≥ 10%
產業交叉參考： UNS R30031 | AMS 5382 | Stellite 31 / X-40 Type.
Data verified against ASM International and Kennametal Stellite technical specifications.