Process for making a welded steel tubular having a weld zone free of untempered martensite
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Apr 15, 2005
filing date -
Apr 15, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A process for making an untempered martensite-free welded steel tubular is disclosed. The process includes rapid quenching of the steel tubular without formation of untempered martensite, at rates up to about 1600.degree. F./second. There is no post-weld seam annealing process required. Also a welded steel tubular made in accordance with the disclosed process is described.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully