Polished Surface GCr15 Bearing Steel Round Bar with High Hardenability and OD 6-630mm
GCr15 is a high carbon chromium bearing steel with optimized alloy content. After quenching and low temperature tempering, it delivers high hardness, uniform microstructure, excellent wear resistance, and superior contact fatigue performance.
- Widely used high carbon chromium bearing steel with excellent performance and cost-effective alloy content
- High hardenability with comprehensive mechanical properties
- Excellent machinability following spheroidizing annealing
- High hardness, uniform structure, superior wear resistance, and high contact fatigue performance after heat treatment
- Superior hot working performance for manufacturing efficiency
| Chinese | American | German | Japanese |
|---|---|---|---|
| GB GCr15 | AISI SAE52100 | DIN 100Cr6/EN31 | JIS SUJ2 |
| Grade | C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
|---|---|---|---|---|---|---|---|---|---|
| GCr15/52100 | 0.95-1.05 | 0.15-0.35 | 0.2-0.4 | ≤0.027 | ≤0.02 | 1.3-1.65 | ≤0.1 | ≤0.25 | ≤0.3 |
| 100Cr6 | 0.95-1.05 | 0.15-0.35 | 0.25-0.45 | ≤0.025 | ≤0.025 | 1.4-1.65 | ≤0.08 | ≤0.25 | ≤0.3 |
| Quenching | Tempering | ||||
|---|---|---|---|---|---|
| Heating Temperature (°C) | Cooling | Hardness (HRC) | Heating Temperature (°C) | Cooling | Hardness (HRC) |
| 830-850 | Oil | 62-65 | 150-190 | Air | 58-62 |
- Manufacturing bearing rings and rolling elements for internal combustion engines, electric motors, automotive systems, tractors, machine tools, rolling mills, boring machines, mining equipment, and general machinery
- High-load, high-speed rotating mechanical transmission bearings
- Specialized tooling applications including punching dies and precision measuring instruments
| Product Form | Dimension | Size Range |
|---|---|---|
| Round Bar | Diameter | 16-280mm |
| Length | 4000-10000mm | |
| Flat Steel | Thickness | 8-200mm |
| Length | 3000-4000mm |
We source materials exclusively from government-owned steel mills to ensure consistent quality and reliability in every steel product we supply. Our two decades of industry experience demonstrate our commitment to delivering both superior quality and competitive pricing.
We prioritize timely delivery alongside product quality. Whether you require raw materials or finished components with machining or heat treatment, we expedite every order to ensure the shortest possible lead times.
Our integrated quality and work management system is continuously improved to meet evolving customer demands. We maintain ISO 9001 certification with regular audits and recertification to validate our quality commitment.
- Quality specialty steel for all industrial applications
- Flexible order quantities with fast shipping
- Unique inventory of specialty steel products
- Value-added services including metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment
- Sawing services for small or large quantities with precision sizing
- Exceptional customer service and technical support
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