Method of manufacturing high chromium martensite steel pipe havi

Details Method of manufacturing high chromium martensite steel pipe havi Method of manufacturing high chromium martensite steel pipe havi

1998-10-28

2000-10-24

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148605, C21D 908

Patent

active

061361097

ABSTRACT:
A high-Cr martensite steel pipe having excellent pitting resistance and method for manufacturing the same, which involves forming a pipe of steel including C: about 0.03 wt % or less, Si: about 0.5 wt % or less, Mn: about 0.5-3.0 wt %, Cr: about 10.0-14.0 wt %, Ni: about 0.2-2.0 wt %, Cu: about 0.2-1.0 wt % and N: about 0.03 wt % or less with the balance being Fe and incidental impurities, and having a value X shown as defined in the following formula (1) of about 12.2 or more. The pipe is quenched after austenitizing it at a temperature substantially equal to an A.sub.C3 point or higher, and the pipe is annealed in a temperature range from about 550.degree. C. or higher to a temperature lower than an A.sub.C1 point.

REFERENCES:
patent: 5049210 (1991-09-01), Miyasaka et al.
patent: 5858128 (1999-01-01), Miyata et al.

Affiliated with

Also associated with

Rating

Method of manufacturing high chromium martensite steel pipe havi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing high chromium martensite steel pipe havi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing high chromium martensite steel pipe havi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1959659