D3 (Werkstoff 1.2080) is a very old alloy, it predates D2. It is though wear resistant but not particularly tough. It does though have a ‘toothy’ edge and slices nicely.
Chemical Composition:-
C:
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Cr:
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Mn:
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Si:
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2%
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11.5%
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0.5%
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0.5%
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Suggested Heat Treatments:
Heat to 980C Hold for 10 minutes
Oil Quench (Suggested Oil is Rye 32)
Temper twice for two hours at 200C for 62HRc
Supplied in 500mm Lengths – Surface Ground Annealed