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; depends on dimension and heat treatment.
Available forms.
Size range: 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 is the European (EN) designation, while 52100, SUJ2, GCr15 are the matching names used in other countries and standards (for example AISI/SAE in the USA, JIS in Japan, GB in China, former DIN in Germany). They are near equivalents and may differ slightly in chemistry; 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.