Heat
Treat Specifications
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Superior Chisel
Steel Analysis |
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Carbon
.55 -.60 |
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Manganese
.70 -.90 |
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Silicon
1.80 - 2.20 |
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Chrome
.20 - .35 |
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Moly
.15 - .25 |
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Heat Treat
Spec. For Above Steel |
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Start |
Forge
1800o - 2000oF - Stop |
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Forge
@ 1500oF (Cherry Red) |
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Hardening: |
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Heat
to 1625oF & Quench in Oil |
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Draw
to 650oF |
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Rockwell
"C" 48-52 |
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Decarb.
will be .010 - .020 |
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If standard
heat treating furnaces are not available, use the color system - the chisel should
be heated to a light orange color and to be quenched in oil. |
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