O1 (DIN 1.2510) is a cold work tool steel used for cutting tools and simple punches and dies. It is often selected for small tooling components and general-purpose applications. O1 can be supplied in annealed or heat-treated condition depending on customer requirements.
O1
Hardness
HRC 58–62 (when heat treated)
Equivalents
DIN 1.2510 / AISI O1
Stock Availability
Ready to Process
Material Overview
Technical Specifications
| Grade | O1 |
| Category | Cold Work |
| Delivery Condition | Annealed or heat treated, depending on application |
| Equivalents | DIN 1.2510 / AISI O1 |
| Hardness Range | HRC 58–62 (when heat treated) |
| Notes | O1 is commonly used for small tooling parts and general cutting applications. |
Typical Applications
Delivery Conditions
Supply State
Annealed or heat treated, depending on application
- Cut-to-size blocks
- Heat treatment available
Need specific dimensions or processing?
Get a QuoteQuick Support
Similar & Recommended Grades
Ready to Order?
We specialize in small-batch cutting and heat treatment. Send us your dimensions.