AUSTENITIC STAINLESS STEEL PIPE EXHIBITING EXCELLENT WRINKLE RESISTANCE

Title:

AUSTENITIC STAINLESS STEEL PIPE EXHIBITING EXCELLENT WRINKLE RESISTANCE

Document Type and Number:

WIPO Patent Application WO/2017/111461

Kind Code:

A1

Abstract:

Disclosed is an austenitic stainless steel pipe exhibiting excellent wrinkle resistance. The disclosed austenitic stainless steel pipe comprises, in wt%, silicon (Si): 0.1-0.65%, manganese (Mn): 0.2-3.0%, nickel (Ni): 6.5-12.0%, chromium (Cr): 14.5-20.5%, copper (Cu): 6.0% or less (excluding 0), carbon (C) + nitrogen (N): 0.13% or less (excluding 0), and a remainder made up by Fe and inevitable impurities, wherein formula (1) below on the outer diameter (D) of the steep pipe and the thickness (t) of the steel pipe is satisfied, and yield strength is 195MPa or less. D/t≥20 ------ Formula (1)

Inventors:

KANG HYUNG GU (KR)
KIM SANG SEOK (KR)
JEON JONG JIN (KR)
SONG BYOUNG JUN (KR)
JUNG HAN YONG (KR)

Application Number:

PCT/KR2016/015015

Publication Date:

June 29, 2017

Filing Date:

December 21, 2016

Export Citation:

Click for automatic bibliography generation Help

Assignee:

POSCO (KR)

International Classes:

C22C38/58; C22C38/00; C22C38/02; C22C38/42; F16L9/02

Foreign References:

JP2015137420A	2015-07-30
KR101550738B1	2015-09-08
JP5448023B2	2014-03-19
JP2008169423A	2008-07-24
JP2000297354A	2000-10-24
JP2003268503A	2003-09-25

Other References: