Cold Work Tool Steel(1.2510/100MnCrW4 )

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-08-15 04:10
Browse the number: 110
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1.2510 100MnCrW4  is a high quality non-distorting cold work tool steel. 1.2510 100MrCrW4 has combined manganese chromium tungsten and is characterised by giving high surface hardness after heat treatment and tempering, good dimensional stability in hardening, and good machining characteristics.
 

Forging:
Heat slowly and uniformly to 1000°C. Forge within a range of 1000/800°C reheating if necessary. Cool slowly (preferably in a furnace) to avoid setting up stresses.
 

Annealing:
Heat uniformly to 770°C, equalise, then furnace cool. (Hardness about 229 Brinell). Fully machined tools should be packed during annealing.
 

Stress Relieving:
If machining operations have been heavy or if the tool has an unbalanced section, remove stresses before hardening by heating up to 650°C, equalise, then cool slowly.
 

Hardening:
To harden 1.2510 first heat uniformly to 780/820°C until heated through. (If possible pre-heat at 300/500°C). Allow 30 minutes per 25 millimetre of ruling section and quench immediately in oil.
 

Martempering:
Martempering is an alternative hardening procedure for 1.2510 which may be used when suitable salt bath equipment is available.
 

Tempering:
Heat uniformly and thoroughly at the selected tempering temperatures and hold for at least one hour per inch of total thickness.

  C. Mn. Cr. W. V. Si.
Min.% 0.90 1.00 0.50 0.5 0.05 0.15
Max.% 1.05 1.20 0.70

0.70

0.15 0.35
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