Bearing Steel
100Cr6 · 1.3505
Also known as 52100 / SUJ2 / GCr15
Through-hardening chromium bearing steel for rings, balls and rollers.
100Cr6 (material 1.3505, equivalent to AISI 52100) is a high-carbon chromium through-hardening bearing steel offering high hardness, wear resistance and fatigue strength. It is the standard steel for bearing rings, balls, rollers and other high-wear precision parts.
International equivalents.
The same steel by country and standard — near matches; mill certificate governs.
Chemical composition.
Indicative, % by weight per EN ISO 683-17. Mill certificate governs.
| Element | % |
|---|---|
| C | 0.93 – 1.05 |
| Si | 0.15 – 0.35 |
| Mn | 0.25 – 0.45 |
| Cr | 1.35 – 1.60 |
| P | ≤ 0.025 |
| S | ≤ 0.015 |
Mechanical properties.
Indicative values for a reference section and heat-treatment condition. Actual properties vary with dimension and treatment, and are confirmed on the mill certificate.
Available forms.
Size: Ø 6 – 250 mm
Typical applications.
- Bearing rings
- Balls & rollers
- Bushings
- High-wear precision parts
FAQ.
What is 100Cr6?
100Cr6 (material 1.3505, equivalent to AISI 52100) is a high-carbon chromium through-hardening bearing steel offering high hardness, wear resistance and fatigue strength. It is the standard steel for bearing rings, balls, rollers and other high-wear precision parts.
Is 100Cr6 the same as 52100?
Yes — 100Cr6 and 52100, SUJ2, GCr15 are matching designations for the same steel across different standards (EN, AISI/SAE, JIS, GB, former DIN). They are near equivalents and may differ slightly in chemistry, so the mill certificate governs the exact specification.
What are the international equivalents of 100Cr6?
100Cr6 corresponds to 100Cr6 (1.3505) (EN), 52100 (AISI / SAE), SUJ2 (JIS), GCr15 (GB). Equivalents are nearest matches by country/standard; the mill certificate governs the exact specification.
In which forms is 100Cr6 available?
100Cr6 is supplied as Round bar, Bright / cold-drawn bar, Tube, in Ø 6 – 250 mm.
What is 100Cr6 used for?
Typical applications include Bearing rings, Balls & rollers, Bushings, High-wear precision parts.