Tool Steel
01 BS EN ISO 4957
Description:
O1 is a general purpose oil hardening tool steel. This manganese-chromiumtungsten steel is suitable for a wide range of cold work applications.
O1 tool steel is characterized by good machinability, good dimensional stability in hardening and a good combination of high surface hardness and toughness after proper heat treatment. These characteristics combine to give steel suitable for the manufacture of tooling with good tool life and production economy.
Applications include Cutting Tools for: Blanking, punching, piercing, cropping, shearing, trimming. Short cold shears, clipping and trimming tools. Forming Tools for: Bending, raising, drawing, rim rolling, spinning and flow forming, small coining dies, gauges, measuring tools, guide bushes, ejector pins, high duty small to medium drills and taps, small gear wheels, pistons, nozzles, cams.
Colour Code
| Steel Number | Steel Name | Grade | Bohler | BS 970 1983 |
|---|---|---|---|---|
| 1.251 | 95MnWCr5 | O1 | K460 | - |
| C | W | Mn | Cr |
|---|---|---|---|
| 0.95 | 0.6 | 1.1 | 0.6 |
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| Rounds | Rounds | Rounds | Rounds | Rounds | Rounds | Rounds | Rounds |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) |
| 20.00 | 35.00 | 50.00 | 65.00 | 90.00 | 120.00 | 150.00 | 180.00 |
| 25.00 | 40.00 | 55.00 | 70.00 | 100.00 | 130.00 | 160.00 | 200.00 |
| 30.00 | 45.00 | 60.00 | 80.00 | 110.00 | 140.00 | 170.00 |
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