SA 299 vs ASTM A-36
SA 299 vs ASTM A-36
(OP)
in my company we have a problem in the steam drum of the recovery boiler. Because of an accident we have to repair many times cracks on the surface and between the holes. A solution proposed by a foreing company was to change o piece of de afected area by welding. They propoused to replace the SA 299 material (original) with a new piece of the same dimentions of ASTM A-36 material. Is the propousal correct?? wouldn´t we have problems with the welding of the two materials. I wil apreciate your advices.





RE: SA 299 vs ASTM A-36
What is the operating temperature of the drum?
RE: SA 299 vs ASTM A-36
RE: SA 299 vs ASTM A-36
RE: SA 299 vs ASTM A-36
Please refer to ASME Section VIII, Div 1, Part UCS, paragraph UCS-6.
RE: SA 299 vs ASTM A-36
RE: SA 299 vs ASTM A-36
Patricia Lougheed
******
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RE: SA 299 vs ASTM A-36
I did not mean to imply that SA-36 is mandatory for vessel pressure parts; only that it may be used in ASME VIII, Div 1 pressure parts construction ,as plate, up to a temp of 650F. The plate material may not be ASTM A-36; it must be SA-36. They could effect the repairs with SA-515 Gr 70 or SA-516 Gr 70 which has a greater design allowable stress and would mitigate the potential thickness difference between the lower strength material and the SA-299 material.
RE: SA 299 vs ASTM A-36
RE: SA 299 vs ASTM A-36
Patricia Lougheed
******
Please see FAQ731-376: Eng-Tips.com Forum Policies: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.