Method for producing large diameter steel pipes

Details Method for producing large diameter steel pipes Method for producing large diameter steel pipes

1975-02-03

1976-09-07

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, 148150, 148153, C21D 908, C21D 914

Patent

active

039792315

ABSTRACT:
A method for producing a large diameter steel pipe having excellent shape, toughness and tensile strength by subjecting the pipe to descaling and to heat treatment which involves heating the steel pipe locally successively from one end to the other end of the steel pipe in the axial direction and forcedly cooling the pipe, and then expanding the steel pipe after the heat treatment.

REFERENCES:
patent: 3140964 (1964-07-01), Middlemiss
patent: 3407099 (1968-10-01), Schell
patent: 3507712 (1970-04-01), Scott
patent: 3755010 (1973-08-01), Moliterno
patent: 3804390 (1974-04-01), Jennings et al.

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