WORKING METHOD FOR FERRITIC STAINLESS STEEL PIPE

Title:

WORKING METHOD FOR FERRITIC STAINLESS STEEL PIPE

Document Type and Number:

Japanese Patent JP3937369

Kind Code:

B

Abstract:

PROBLEM TO BE SOLVED: To provide a method for working a ferritic stainless steel pipe less prone to brittle cracks.
SOLUTION: A ferritic stainless steel contg., by mass, ≤0.03% C, ≤2.0% Si, ≤2.0% Mn, 10.0 to 35.0% Cr and ≤0.03% N, furthermore contg. one or more kinds among ≤1.0% Cu, ≤3.0% Mo, ≤0.8% Nb, ≤0.5% Ti and ≤0.3% Al, and the balance Fe with inevitable impurities in the production is subjected to TIG welding, laser welding or high frequency welding to make a tube, which is, if circumstances required, furthermore subjected to stress relieving annealing after making the tube and is thereafter subjected to warm working at ≥15°C.

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Inventors:

Tarumi, Kazumasa
Minami, Keiji
Oku, Manabu
Hiramatsu, Naoto

Application Number:

JP1998000042954

Publication Date:

April 06, 2007

Filing Date:

February 10, 1998

Export Citation:

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Assignee:

NISSHIN STEEL CO LTD

International Classes:

B23K9/167; C21D8/10; B21C37/08; B23K13/00; B23K26/00; B23K26/20; C21D1/26; C22C38/00; C22C38/38; B23K9/167; C21D8/10; B21C37/08; B23K13/00; B23K26/00; C21D1/26; C22C38/00; C22C38/38; (IPC1-7): C21D8/10; B21C37/08; B23K9/167; B23K13/00; B23K26/00; C21D1/26; //C22C38/00; C22C38/38

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