Engineering grade
EN31 Steel
High-carbon chromium steel, commonly associated with bearing and wear applications.
General grade information
EN31 is a high-carbon chromium steel designation. It is generally chosen where high hardness and wear resistance are needed after suitable heat treatment.
Typical applications
- Bearing races and rollers
- Wear parts and punches
- Tooling components
Typical chemical composition — BS 970 EN31 (535A99)
| Element | Typical range (%) |
|---|---|
| Carbon (C) | 0.90 – 1.20 |
| Manganese (Mn) | 0.30 – 0.75 |
| Silicon (Si) | 0.10 – 0.35 |
| Chromium (Cr) | 1.00 – 1.60 |
Equivalent grades
- 535A99
- IS 103Cr1
- AISI 52100
- DIN 100Cr6 (1.3505)
Equivalents are approximate. Reference ranges only — actual batch values confirmed per enquiry.
About our EN31 stock
The information above is general for the EN31 designation. Exact composition, hardness, strength and heat-treatment condition of a specific batch are not stated here and must be confirmed per enquiry.
Availability subject to current stock confirmation. Grades, sizes, lengths and quantities vary with current inventory.
Material documentation can be discussed and confirmed against the specific requirement and available records.
Other grades: EN8 · EN9 · EN19 · EN24 · C45 · P20 · MS · S235JR · S275JR · ASTM A36
Enquire about EN31
Include any documentation you require — it is recorded with your enquiry and verified before any commitment.