Tool Steels M46 is stocked by 0 North American distributors and produced by 1 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
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Specifications
The following specifications cover Tool Steels M46
- ASTM A600 (M-46)
- UNS T11346
Property Results
Chemistry Data : [top]
Carbon
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1.22 - 1.3 |
Chromium
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3.7 - 4.2 |
Cobalt
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7.8 - 8.8 |
Iron
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Balance |
Manganese
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0.2 - 0.4 |
Molybdenum
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8 - 8.5 |
Phosphorus
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0.03 max |
Silicon
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0.4 - 0.65 |
Sulphur
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0.03 max |
Tungsten
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1.9 - 2.2 |
Vanadium
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3 - 3.3 |
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Principal Design Features
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This alloy is a High Speed tool steel with additions for strength of tungsten, molybdenum, chromium , vanadium and cobalt. Its carbon content of 1.25% and vanadium content increase the alloy wear resistance while the cobalt content enhances performance at red heats.
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Applications
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M46 is primarily used for cutting tools.
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Machinability
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This alloy is of medium machinability, rating about 60% that of the W group water hardening low alloy steels which are rated as 100% for machinability.
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Forming
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Forming by conventional means may be done with the alloy in the annealed condition.
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Welding
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M46 is a complex alloy but is weldable. Consult the alloy supplier for information on weld procedures.
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Heat Treatment
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Preheat to 1450 F then heat rapidly to 2200 F. Hold parts at 2200 f for 3 to 5 minutes and then salt bath, oil or air quench.
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Forging
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Forge at 2100 F down to 1750 F. Do not forge below 1700 F.
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Hot Working
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See "Forging".
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Cold Working
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Cold working of M46 in the annealed condition may be don be conventional means.
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Annealing
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Anneal at 1600 - 1650 F and slow cool in the furnace at a rate of 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 975 to 1050 F for Rockwell c hardness of 69 to 67. Triple tempering of one hour at temperature each time is recommended.
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Hardening
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See "Heat Treatment" and "Tempering".
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Physical Data : [top]
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Density (lb / cu. in.)
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0.298
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Specific Gravity
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8.18
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Melting Point (Deg F)
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2600
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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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