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3 PWHT Cycles for test coupon SA-516-60

3 PWHT Cycles for test coupon SA-516-60

3 PWHT Cycles for test coupon SA-516-60

(OP)
Can plate Sa-516 Gr70 withstand 3PWHT cycles ( on other word will it pass ? )

Plate thickness : 14 mm
What about the simulation applied also for pipes - 106Gr B and flanges 105 ?

RE: 3 PWHT Cycles for test coupon SA-516-60

Yes, for plate and stated materials.

RE: 3 PWHT Cycles for test coupon SA-516-60

(OP)
It is weird . I ask the plate supplier to do 3 cycles they said we cannot guarantee to you that it will pass . we will do it only for two cycles !

This is a requirement from client !

Can stockist do the test or it has to be from mill ? Also How I know theoretically that a certain material would probably withstand n number of cycles ?

Thanks

RE: 3 PWHT Cycles for test coupon SA-516-60

Quote:

Can stockist do the test or it has to be from mill ? Also How I know theoretically that a certain material would probably withstand n number of cycles ?

Look at the actual strength stated on the MTR, depending on how far above the minimum required is your margin. For each PWHT cycle the strength can degrade slightly.

RE: 3 PWHT Cycles for test coupon SA-516-60

(OP)
Is it possible to purchase the material and do the test in third party lab? Or the mill has to do the test?

RE: 3 PWHT Cycles for test coupon SA-516-60

Yes, you can have materials certified by a 3rd party; the trouble being if it fails, you now own a lot of material that doesn't meet your requirement.

RE: 3 PWHT Cycles for test coupon SA-516-60

(OP)
Yes , thats my concern!!

If you cannot go to mill for small quantity then what is the best to do?

RE: 3 PWHT Cycles for test coupon SA-516-60

Stockists often perform such tests when orders are not large enough for a mill run purchase.

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