Comparison
Defining property | AISI-SAE grade | Significant characteristics |
---|---|---|
Water-hardening | W | |
Cold-working | O | Oil-hardening |
A | Air-hardening; medium alloy | |
D | High carbon; high chromium | |
Shock resisting | S | |
High speed | T | Tungsten base |
M | Molybdenum base | |
Hot-working | H | H1–H19: chromium base H20–H39: tungsten base H40–H59: molybdenum base |
Plastic mold | P | |
Special purpose | L | Low alloy |
F | Carbon tungsten |
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