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Elements (Max.) C Mn P S Si Cr Mo .75/.95 1.00 .040 .030 1.00 16/18 0.75
Type 440B is a hardenable chromium steel with greater attainable hardness than Type area and greater toughness than Type 440C. It has its optimum corrosion resisting qualities in the hardened and tempered conditions.Type 440B is magnetic in all conditions.