100Cr6
Data verified100Cr6 is the EN designation (1.3505) of the universal 1%C–1.5%Cr bearing steel, specified under EN ISO 683-17 with defined spheroidization and cleanliness delivery conditions. It is the European name buyers meet on mill certificates for 52100-family material.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.93–1.05 |
| Si | 0.15–0.35 |
| Mn | 0.25–0.45 |
| P | ≤0.025 |
| S | ≤0.015 |
| Cr | 1.35–1.60 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Spheroidize annealed (+AC per EN ISO 683-17) |
| Hardness (hardened) | 62–66 HRC |
| Density | 7.85 g/cm³ |
Heat treatment
Harden 830–870 °C oil; temper 150–180 °C; delivery and testing per EN ISO 683-17.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.3505 (100Cr6) |
| aisi | 52100 |
| jis | SUJ2 |
| gb | GCr15 |
Compare side by side: 100Cr6 vs 52100 · 100Cr6 vs GCr15
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Bearings of all types, precision components, thread guides, wear parts.
Processing: Order the +AC spheroidized condition for machining; final hardening as 52100.
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Ask for a quotationVisit NasteelSource: EN ISO 683-17 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.