O1
O1 Product Guide
Applications | Specifications | Mechanical and Chemical Data
Overview
Oil-hardening, general purpose tool steel that holds its size and shape with excellent accuracy when being heat treated. While not as strong or wear resistant as A-2 or D-2, it experiences significantly less distortion during the heat treating process. Typically used in rolls, punches, shear knives, food processing knives, and gauges.
Common Trade Names
UNS T31501, AISI Type O1, Presco, Oilcrat
Other Resources
Weight Calculator | Mill Test Reports
Products
O1 Drill Rod | O1 Rectangle Bar | O1 Square Bar |
Specifications
ASTMA | | SAEJ | |
|---|---|---|
| 681 | 437 |
Applications
- Blades
- Gauges
- Tooling
| Mechanical Information | |||
| Density | Ultimate Tensile Strength | Yield Tensile Strength | |
|---|---|---|---|
| Imperial | 0.283 lb/in3 | 245,000 psi | 218,000 psi |
| Metric | 7.83 g/cc | 1,690 MPa | 1,500 MPa |
| Mechanical Information | |||
| Modulus of Elasticity | Shear Modulus | ||
|---|---|---|---|
| Imperial | 31,000 ksi | 11,900 ksi | |
| Metric | 214 GPa | 82 GPa | |
| Mechanical Information | |||
| Hardness Rockwell | Elongation at break percentage | Poissons Ratio | |
|---|---|---|---|
| C50 Depending on Temper | 0 | 0.3 | |
|
Chemistry Information
|
|
Element |
Percentage |
| C | 0.94 |
| Cr | 0.5 |
| Fe | 96.56 |
| Mn | 1.2 |
| Si | 0.3 |
| W | 0.5 |
