Tool Steels O1 is stocked by 75 North American distributors and produced by 14 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Bar Products by 70 distributors but is also available to a lesser extent in Flat Rolled Products, Tubular Products, and Wire Products.
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Specifications
The following specifications cover Tool Steels O1
- ASTM A681
- DIN 1.2510
- SAE J437
- SAE J438
- UNS T31501
Property Results
Related Metals:
- Cryodur ® 2510
- Lukens O-1(tm)
- Oilcrat(tm)
- Presco(tm)
- Truform(tm)
- Ketos(tm)
- Colonial No. 6(tm)
- Carpenter O-1(tm)
- Badger(tm)
- Xarnie
- Thyrodur 2510(tm)
- Keystone(tm)
Chemistry Data : [top]
Carbon
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0.85 - 1 |
Chromium
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0.4 - 0.6 |
Iron
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Balance |
Manganese
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1 - 1.4 |
Phosphorus
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0.03 max |
Silicon
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0.5 max |
Sulphur
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0.03 max |
Tungsten
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0.4 - 0.6 |
Vanadium
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0.3 max |
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Principal Design Features
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This alloy is one of the Cold Work, oil hardening type tool steels. It is relatively inexpensive containing small amounts of manganese, tungsten and chromium. Hardening by oil quench minimizes distortion and cracking.
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Applications
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Applications include short run tooling for blanking dies, cold forming dies and cutting tools operating at ambient temperature.
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Machinability
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Machinability of this alloy is very good. It has a rating of 90% that of the W group water hardening low alloy tool steels.
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Forming
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O1 alloy can be readily formed in the annealed condition by conventional methods.
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Welding
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This alloy is weldable by standard means. Consult the alloy supplier for details and procedures.
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Heat Treatment
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Slowly preheat to 1200 F and then gradually raise temperature to 1450 - 1500 F and keep at temperature for 10 to 30 minutes. Quench in oil.
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Forging
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Forge at 1900 F down to 1575 F. Do not forge below 1550 F.
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Hot Working
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See "Forging".
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Cold Working
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In the annealed condition this alloy may be readily cold worked, much the same as for plain carbon steels.
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Annealing
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Anneal at 1450 F and slow furnace cool at less than 40 F per hour.
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Aging
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Not applicable to this alloy.
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Tempering
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Temper at 350 to 500 F for Rockwell C hardness of 62 to 57.
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Hardening
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See "Heat Treatment" and "Tempering".
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Other Comments
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This tool steel is relatively inexpensive, yet has adequate hardness and wear resistance for short run tooling use.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.284
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Specific Gravity
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7.85
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Melting Point (Deg F)
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2590
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Modulus of Elasticity Tension
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29
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
