Martensitic steels are designed to form martensite on normal air cooling of the weld deposit. As a result, these steels are often termed "self-hardening" or "air-hardening," and they resemble tool steels with hardnesses in the range of 45 to 60 HRC. The carbon content of the martensitic steels ranges up to 0.7%. Other elements such as molybdenum, tungsten, nickel, and chromium (up to 12%), are added to increase hardenability and strength and to promote martensite formation.
Manganese and silicon usually are added to aid weldability
Martensitic steels are designed to form martensite on normal air cooling of the weld deposit. As a result, these steels are often termed "self-hardening" or "air-hardening," and they resemble tool steels with hardnesses in the range of 45 to 60 HRC. The carbon content of the martensitic steels ranges up to 0.7%. Other elements such as molybdenum, tungsten, nickel, and chromium (up to 12%), are added to increase hardenability and strength and to promote martensite formation.Manganese and silicon usually are added to aid weldability
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