OHNS steel
OHNS is a oil-hardening non-shrinking tool steel, also known as O1, 1.2510. MD Steel Co. supplies OHNS at N.I.T. Faridabad, cut to size and supplied with a mill test certificate.
Typical uses
Blanking and piercing dies, punches, gauges, measuring tools and cutting tools.
Availability
Available on request in rounds and flats. Send us the size and quantity and we will confirm availability and rate.
Chemical composition
| ELEMENT | WT % |
|---|---|
| C | 0.90–1.05 |
| Si | 0.15–0.35 |
| Mn | 1.00–1.20 |
| Cr | 0.50–0.70 |
| W | 0.50–0.70 |
| V | 0.05–0.15 |
Equivalent grades
| STANDARD | GRADE |
|---|---|
| AISI | O1 |
| DIN / W.Nr | 100MnCrW4 · 1.2510 |
| JIS | SKS3 |
| BS 4659 | BO1 |
Typical ranges per the relevant standard. Exact values are on the mill test certificate supplied with each lot.