O1 Flat Ground, is an oil-hardening, non-deforming tool steel which can be hardened at relatively low temperatures. Tools and dies made from O1 Flat Ground will have good wearing and abrasive qualities since the tungsten and higher chromium content gives improved wear resistance. O1 Flat Ground is ground to a surface finish of up to 35Ra on six sides and is free from defects and decarburization.
- Specifications: ASTM A681, QQ-T-570, AISI O1
- AKA: O1 flat, O1 premachined
- Applications: dies, knives, taps, punch plates, molds, etc.
- Tolerances: Thickness = +/- .001", Width = +.005/-0
- How is it Measured?
Thickness (A) X Width (B) X Length
- Available Stock Sizes: 18 inch lengths
Rockwell Hardness | 62-64C | Corrosion Resistance | Low |
Machinability | High | Depth of Hardening | Medium |
Weldability | Medium | Grindability | High |
Wear Resistance | Medium | Distortion in Heat Treating | Low |
Overall Toughness | Medium | Decarburization Resistance | High |
Strength | Medium | Resistance to Heat Softening | Low |
* Data provided for references only and is not warranted.
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