Method for producing clad steel pipes

Details Method for producing clad steel pipes Method for producing clad steel pipes

1977-07-26

1979-07-31

Lanham, C. W.

Metal fusion bonding

Process

Encasing a rodlike core within a substantially coextensive...

228173A, 228243, 228158, 228209, B23K 1900

Patent

active

041627580

ABSTRACT:
A long length clad steel pipe which is in the extremely superior metallurgically bonded state and having good qualities can be manufactured easily at an inexpensive cost by using as a base metal, a carbon steel including a low alloyed steel and as a cladding metal, a stainless steel, nickel or a nickel alloy by the steps comprising welding at least one end part of double pipes consisting of a base metal and a cladding metal, and subjecting the processed double pipes to hot rolling at a temperature between 850.degree. C. to 1300.degree. C. with a reduction ratio of at least 15% in the first step rolling.

REFERENCES:
patent: 1896411 (1933-02-01), Maskrey
patent: 3001059 (1961-09-01), Jones
patent: 3140537 (1964-07-01), Popoff
patent: 3228103 (1966-01-01), Shewmon
patent: 3316630 (1967-05-01), Goedecke et al.
patent: 3862484 (1975-01-01), Chivinsky

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