Manufacturing method of elbows made of cast stainless steel

Details Manufacturing method of elbows made of cast stainless steel Manufacturing method of elbows made of cast stainless steel

1980-06-02

1982-02-09

Stallard, W.

Metal treatment

Compositions

Heat treating

148 2, 148 12EA, C22F 2600

Patent

active

043148611

ABSTRACT:
A method of refining the structure of the straight tube portions at the ends of an elbow made of cast stainless steel characterized in that a cast stock tube of a cast austenitic stainless steel with its chemical composition so adjusted as to have the ferrite phase mixed in in the proportion of 5-40% is formed, with the straight tube portions at its ends made larger or smaller than the specified dimension; the said straight tube portions are formed roughly to the specified dimensions by subjecting them to a plastic deformation either by a process of contraction or expansion, and thereafter, the tube thus formed is heated at 1,000.degree.-1,200.degree. C., and then, quenched.

REFERENCES:
patent: 3979231 (1976-09-01), Gondo
patent: 4018634 (1977-04-01), Fencl

Affiliated with

Also associated with

Rating

Manufacturing method of elbows made of cast stainless steel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacturing method of elbows made of cast stainless steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing method of elbows made of cast stainless steel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1259551