EFFECT OF CARBON, PHOSPHORUS, SULFUR, AND NICKEL CONTENT ON THE MECHANICAL PROPERTIES OF LABORATORY-MELTED NI-CR-MO STEELS
Abstract
To better define the effect of variations in carbon, phosphorus, sulfur, and nickel on the strength and notch toughness of this steel, a central composite rotatable second-order statistically designed experimental program was conducted. The results were obtained in the form of a series of equations that predict for Laboratory-produced Ni-Cr-Mo steel the effect of the elements studied on the yield strength, tensile strength, elongation, reduction of area, Charpy V-notch energy absorption at +80 F and -80 F, lateral expansion at +80 F and -80 F, and shear-fracture appearance at -80 F. The equations predict that (1) an increase in carbon content from 0.10 to 0.20 percent would increase the yield strength about 14,000 psi, correspondingly decrease the elongation about 2 percent, and decrease the energy absorption at +80 F about 17 ft-1b; (2) an increase in sulfur from 0.005 to 0.010 percent would decrease the reduction of area bout 2 percent and reduce the energy absorption at +80 F about 10 ft-lb; (3) an increase in nickel content from 4.0 to 8.0 percent would decrease the energy absorption at +80 F about 5 ft-lb and lower the transition temperature.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1963
- Accession Number
- AD0459670
Entities
People
- D. S. Dabkowski
- J. V. Alger
- K. H. Kramer
- Robert M. Brown
- W. J. Murphy
Organizations
- U.S. Steel