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Promispecial® high-temperature bearing steel is meticulously engineered to excel in extreme conditions, featuring strong carbide-forming elements such as chromium and molybdenum. These additions impart exceptional high-temperature hardness, wear resistance, contact fatigue strength, oxidation resistance, and dimensional stability. Capable of operating in environments ranging from 200°C to 430°C, this steel is ideal for demanding applications in metallurgy, aerospace, automotive, and industrial heating equipment.
High-Temperature Hardness: Through specialized alloy design and heat treatment processes, our steel maintains a hardness of HRC 62 or above, even at temperatures up to 400°C.
Wear Resistance at High Temperatures: The addition of carbide-forming elements creates a hard, wear-resistant surface that significantly enhances performance under high-temperature conditions.
Contact Fatigue Strength: Optimized chemical composition and microstructure reduce the risk of cracking under cyclic loads, increasing the steel’s contact fatigue strength.
Oxidation Resistance: High chromium content provides excellent resistance to oxidation, preventing surface degradation in high-temperature environments.
Dimensional Stability: Our unique heat treatment ensures that the steel retains its precise dimensions and stability, even after prolonged exposure to high temperatures.
Alloy Design: Carefully selected alloying elements and precise ratios are used to form a uniformly distributed carbide phase, essential for superior high-temperature performance.
Heat Treatment Process: Custom quenching and tempering procedures are employed to optimize the material’s mechanical properties and microstructure, ensuring peak performance.
Precision Manufacturing: Every piece of high-temperature bearing steel undergoes precise machining, ensuring minimal tolerances and exceptional surface finish.
Aerospace: Essential for high-temperature bearings in aircraft engines and spacecraft, where reliability and performance are critical.
Automation & Machinery Manufacturing: Ideal for industrial robots and precision machinery that operate in high-temperature environments.
Energy Industry: Plays a crucial role in high-temperature, high-pressure applications in oil drilling and power generation equipment.
| High Temperature Bearing Steel | |||||||||||||
| NO. | Grade | Chemical Composition (Mass Fraction) /% | |||||||||||
| C | Mn | Si | Cr | Mo | V | W | P | S | Ni | Cu | Co | ||
| 1 | GW9Cr4V2Mo | 0.70~ 0.80 |
≤ 0.40 |
≤ 0.40 |
3.80~ 4.40 |
0.20~ 0.80 |
1.30~ 1.70 |
8.50~ 10.00 |
≤ 0.025 |
≤ 0.015 |
≤ 0.25 |
≤ 0.20 |
|
| 2 | GW18Cr5V | 0.70~ 0.80 |
≤ 0.40 |
0.15~ 0.35 |
4.00~ 5.00 |
≤ 0.80 |
1.00~ 1.50 |
17.50~ 19.00 |
≤ 0.025 |
≤ 0.015 |
≤ 0.25 |
≤ 0.20 |
|
| 3 | GCr4Mo4V | 0.75~ 0.85 |
≤ 0.35 |
≤ 0.35 |
3.75~ 4.25 |
4.00~ 4.50 |
0.90~ 1.10 |
≤ 0.25 |
≤ 0.025 |
≤ 0.015 |
≤ 0.25 |
≤ 0.20 |
≤ 0.25 |
| 4 | GW6Mo5Cr4V2 | 0.80~ 0.90 |
0.15~ 0.40 |
≤ 0.45 |
3.80 4.40 |
4.50~ 5.50 |
1.75~ 2.20 |
5.50~ 6.75 |
≤ 0.025 |
≤ 0.015 |
≤ 0.25 |
≤ 0.20 |
|
| 5 | GW2Mo9Cr4VCo8 | 1.05~ 1.15 |
0.15~ 0.40 |
≤ 0.65 |
3.50~ 4.25 |
9.00~ 10.00 |
0.95~ 1.35 |
1.15~ 1.85 |
≤ 0.025 |
≤ 0.015 |
≤ 0.25 |
≤ 0.20 |
7.75~ 8.75 |
| Report the actual measured values of Sn, As, Sb, Pb, Ti, Al, and Ca elements in the steel. | |||||||||||||
| High Temperature Bearing Steel | |||||
| NO. | GB | ISO | AISI | DIN | JIS |
| 1 | GW9Cr4V2Mo | – | T42 | 1.3343/1.3348 | SKH57 |
| 2 | GW18Cr5V | – | T1/T5 | 1.3355/1.3343 | SKH2/SKH4 |
| 3 | GCr4Mo4V | – | T4/T5 | 1.3243 | SKH9 |
| 4 | GW6Mo5Cr4V2 | – | T1/M2 | 1.3343 | SKH9 |
| 5 | GW2Mo9Cr4VCo8 | – | T15/M42 | 1.3247 | SKH55/SKH59 |
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