High performance corrosion-resistant structural steels
Book
·
OSTI ID:234252
- Lukens, Inc., Coatesville, PA (United States)
- Washington Steel Corp., PA (United States)
A new corrosion-resistant structural steel named Duracorr was developed for low maintenance when compared to conventional structural steels. The new stainless steel is a dual phase composition between the established 12% Cr, ferritic T409 and martensitic T410 grades. Attractive combinations of hardness, strength, toughness, weldability and formability are derived from a microstructure that is a dual phase mixture of ferrite and martensite. The Duracorr composition, UNS S41003, provides for a microstructure of ferrite and austenite to be present throughout the hot rolling process. Cooling to room temperature causes transformation of the austenite to martensite. Subsequent tempering of the steel creates minimum mechanical properties of 275 MPa (40 ksi) yield strength and 455 MPa (66 ksi) tensile strength with room temperature longitudinal Charpy impact values typically greater than 34 J (25 ft-lbs).
- OSTI ID:
- 234252
- Report Number(s):
- CONF-951026--; ISBN 0-87170-555-9
- Country of Publication:
- United States
- Language:
- English
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