EN31 Steel Billets
EN31 (535A99) high carbon chromium bearing steel. A high carbon, chromium steel that reaches very high hardness and wear resistance after hardening.
EN31 chemical composition
| C | 0.90 – 1.20 % |
|---|---|
| Si | 0.10 – 0.35 % |
| Mn | 0.30 – 0.75 % |
| Cr | 1.00 – 1.60 % |
| S / P | 0.040 max each % |
Indicative ranges from the common grade standard. The final analysis is as per the order and the heat test certificate.
Equivalent grades
535A99 (BS 970) · SAE 52100 · 100Cr6 / 1.3505
Equivalents are approximate. See the grade equivalents guide.
EN31 billets and blooms
EN31 and 52100 billets and blooms are used to forge and ring-roll bearing races, so cleanliness is the main buying criterion.
Kesari Alloys supplies EN31 as continuous cast billets and blooms from 100 × 100 to 250 × 250 mm and 200 mm round, in lengths up to 12 metres. See the billet size chart for weight per metre.
Heat treatment: Spheroidise annealed for machining, then hardened and tempered for service.
Typical uses of EN31
- Bearing rings and rollers
- Cold work tooling and dies
- Wear plates
- Ball and roller components
Industries: ring rolling, heavy engineering.
Related grades
EN31 questions
What is EN31 steel used for?
EN31 is used for bearing rings and rollers, cold work tooling and dies, wear plates, ball and roller components.
What is the equivalent of EN31?
535A99 (BS 970) · SAE 52100 · 100Cr6 / 1.3505. Equivalents are approximate, so check the limits in your specification.
Does Kesari Alloys supply EN31 billets?
Yes. EN31 is available as continuous cast billets and blooms (100 to 250 mm and 200 mm round, up to 12 m). Send the size, length, quantity and standard to info@ksl.in for a quotation.