Polished Surface High Hardenability Alloy Steel Round Bar OD 6-630mm for Bearing Applications
Price:
US $690-1,180 / Ton
MOQ:
1 Ton
Delivery Time:
Negotiable
Product Description
GCr15 / SAE52100 / EN31 Alloy Steel Round Bar for Bearing Applications
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.
Key Features
- Widely used high carbon chromium bearing steel with excellent performance and minimal alloy content
- High hardenability and comprehensive mechanical properties
- Excellent machinability after spheroidizing annealing
- High hardness, uniform structure, superior wear resistance, and high contact fatigue performance after quenching and tempering
- Outstanding hot working performance
International Standards Equivalents
| Chinese (GB) | American (AISI) | German (DIN) | Japanese (JIS) |
|---|---|---|---|
| GCr15 | SAE52100 | 100Cr6/EN31 | SUJ2 |
Chemical Composition
| 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 |
Heat Treatment Parameters
| Quenching | Tempering | ||||
|---|---|---|---|---|---|
| Heating Temperature (°C) | Cooling | Hardness (HRC) | Heating Temperature (°C) | Cooling | Hardness (HRC) |
| 830-850 | Oil | 62-65 | 150-190 | Air | 58-62 |
Typical Applications
- Manufacturing bearing rings and rolling elements for internal combustion engines, electric motors, automotive applications, tractors, machine tools, rolling mills, boring machines, mining machinery, and general machinery
- High load and high speed rotating mechanical transmission bearings
- Tool manufacturing including punching dies and measuring instruments
Available Stock Sizes
| Product Form | Dimension | Size Range | Length |
|---|---|---|---|
| Round Bar | Diameter | 16-280mm | 4000-10000mm |
| Flat Steel | Thickness | 8-200mm | 3000-4000mm |
Quality Assurance & Service Commitment
Government-Owned Steel Mill Quality
We source materials exclusively from certified steel manufacturers to ensure consistent quality and reliability in all our steel products.
We source materials exclusively from certified steel manufacturers to ensure consistent quality and reliability in all our steel products.
Fast and Reliable Delivery
We prioritize timely delivery for all orders, whether raw materials or finished products with machining or heat treatment, ensuring shortest possible lead times.
We prioritize timely delivery for all orders, whether raw materials or finished products with machining or heat treatment, ensuring shortest possible lead times.
ISO 9001 Certified Quality Management
Our integrated quality management system is continuously improved and certified according to ISO 9001 standards, with regular audits and recertification.
Our integrated quality management system is continuously improved and certified according to ISO 9001 standards, with regular audits and recertification.
Our Comprehensive Services
We supply quality specialty steel for all industrial applications with orders of any size or length. Our services include metal cutting, sizing, machining (blanking, milling, grinding), heat treatment, sawing for small or large quantities, and excellent customer support.
Contact Us Today!
Get the latest pricing and detailed product information
Get the latest pricing and detailed product information
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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben