SUBSTITUTION OF MANGANESE FOR NICKEL IN NI-CR-MO STEELS.
Abstract
A laboratory study was initiated in which the manganese content of six Ni-Cr-Mo steels was increased from 0.5 to 3.0% and the nickel content was decreased from 4.5 to 0.5% to maintain a calculated hardenability index of 15 to 20. The evaluation consisted of hardenability, mechanical-property, and temperability studies on water-quenched and on blower-cooled 1/2-in.-thick plates of the six vacuum-melted, vacuum-carbondeoxidized Mn-Ni-Cr-Mo steels. The results showed that the hardenability of the highermanganese steels (1.0 to 3.0% Mn) was less than that predicted from the calculations, and the notch toughness of the water-quenched and of the blower-cooled plates decreased continuously as the manganese content increased. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 02, 1964
- Accession Number
- AD0429143
Entities
People
- D. S. Dabkowski
- Lew F. Porter
- S. J. Manganello
Organizations
- U.S. Steel