Z-Tuff is a PM (Powder Metallurgy) steel from Zapps GMBH. It is a highly shock resistant tool steel with a fantastic combination of toughness and wear resistance. It has nearly the same toughness as S7 (Better than CPM-3V) but with greater edge holding. If you after super tough and slicey this is the steel.
Chemical Composition:-
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C:
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V:
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Cr:
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Mo:
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Ni:
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0.7%
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1%
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7.5%
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2%
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1.5%
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Suggested Heat Treatments:
Heat to 1050C (Hold for 20 minutes)
Air or Oil Quench (Suggested Oil is Rye 32)
Temper twice for two hours at 530C for 61/62HRc
Supplied Surface Ground Annealed in 600mm Lengths.