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I Forge Iron

Punch and chisel materials


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What are you going to punch and chisel? Hot? Cold? Silver? Gold?

For blacksmithing car spring is good; but for hard use items---slitters, deep punching: high alloy steels like H13 or S7 are suggested as they keep a lot of their hardness even when burred in hot steel.

For heat treat it can be as simple as just normalizing for a tough tool or complex HT depending on alloy and intended use: Cold work punches and chisels are often heat treated harder than hot work ones.

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Thanks Thomas

I want to make a punch and chisel for hot cutting and punching mild steel. The car springs come from a landrover defender. The spring is about a half inch (1,3)cm thick, but I think I have a thicker one ;)

Thanks
Jordan

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