Method of manufacturing steel bars and tubes with good mechanica

Details Method of manufacturing steel bars and tubes with good mechanica Method of manufacturing steel bars and tubes with good mechanica

1982-11-18

1984-10-02

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 36, C21D 810

Patent

active

044746270

ABSTRACT:
The invention relates to a method of making steel bars and tubes with good mechanical characteristics.
The process consists of manufacturing a low alloy steel containing 0.06 to 0.12% carbon as well as additions with well-determined contents of Si, Mn, Nb, Al, B and optionally V. The steel is used in a raw state of hot rolling, optionally followed by tempering.
The bars and tubes obtained in this manner are used for applications in which it is necessary to have a high elastic limit associated with high resistance.

REFERENCES:
patent: 2513240 (1950-06-01), Hill
patent: 3926687 (1975-12-01), Gondo et al.
patent: 4075041 (1978-02-01), Ueno et al.
patent: 4219371 (1980-08-01), Nakasugi et al.
patent: 4354882 (1982-10-01), Greer
patent: 4370178 (1983-01-01), Waid et al.
Steel Specialty Tubular Products, Steel Products Manual, American Iron & Steel Institute, NY, NY, Feb. 1972, pp. 15-18.
Pickering, "High-Strength, Low-Alloy Steels-A Decade of Progress," Micro Alloying 75, Session 1, Conf. Wash. D.C., Oct. 1975, pp. 3-24.

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