Dear All,
We all know that ASTM 105 & ASTM A 234 have their own General requirements given in ASTM A 960, A 961 etc. which should also be addressed along with original Product requirements.
Now as per A 960/ 961 : Heat Analysis : "An Analysis of each heat of steel shall be made by the...
Dear Experts,
i have gone through a Pressure leak test using ARGON gas for RF pad.No vent was provided only one hole for attaining pressure was made.we have achieved the Gas pressure from Argon cylinder with Gas pressure regulator. pressure gauge was provided in connection at some...
FOR "Thomas Eun" - As you said earlier in case of ASS -"The ferrite contents of ASS (austenitic stainless steel) after successful solution heat treatment may be nil. The purpose of ferrite control, 3-10% is to avoid the solidification crack during welding. It means the ferrite control, such...
Dear All,
We all know that welding of duplex stainless steel is somewhat critical because of the formation of brittle phases like sigma phase,alpha prime,chi phase etc.the formation of theses phase normally happen in between 300°C to 1000°C.now, during welding there is a strong...
Dear All,
sorry for replying too late.
For "metengr" - yes,we are the manufacturer of pipe fittings,in which the ferrite test is normally done for AUSTENITIC S.S.and our normal practice to check the same is before heat treatment.
FOR "bhollands" we are...
Dear All,
sorry for replying too late.
For "metengr" - yes,we are the manufacturer of pipe fittings,in which the ferrite test is normally done for AUSTENITIC S.S.and our normal practice to check the same is before heat treatment.
FOR "bhollands" we are...
Dear ALL,
my product is A420 WPL6-welded pipe fitting.for the same,i have used A516 Grade 70 plate as raw material.now which would be the best heat treatment cycle to achieve impact properties(Weld,Parent and HAZ) at -45°C.
DEAR ALL,
Our normal practice for checking ferrite content in Austenitic s.s is before heat treatment.I want to inform you that we are doing Solution Annealing at 1040°C for Austenitic stainless steel(i.e.A403 WP304L,WP316L) pipe fittings.so can anyone guide me why we are performing...
Dear All,
Can any one tell me which IGC practice is required for duplex stainless steel? please give some brief idea why we have to follow that particular practice?
Is there any code requirement for the above matter especially for pipe fittings????
