PWHT for Section VIII Div 1, P-4 and P-44; Little Coaching Please.
PWHT for Section VIII Div 1, P-4 and P-44; Little Coaching Please.
(OP)
Developing a weld procedure to clad inconel to a cast steel.
The casting is an SB-517 Grade WC5 which I know to be a P-No.4 material.
The inconel cladding will be C-276, which in wire form is similar to spec SB-574, but the welding product form is AWS 5.11 Type ENiCrMo-4. The SB-574 spec appears to be a P-No.44 material.
According to Section VIII Table UCS-56, for P-No.4 material, I must stress relieve at 1200 deg F for 1hr/inch.
I find no guidance in Section VIII on pwht for P-No.44 materials.
However - manufacturer data from both Haynes and Special Metals, warn against stress relieving.
What advice is offered to determine the proper stress relief?
Thankyou.
The casting is an SB-517 Grade WC5 which I know to be a P-No.4 material.
The inconel cladding will be C-276, which in wire form is similar to spec SB-574, but the welding product form is AWS 5.11 Type ENiCrMo-4. The SB-574 spec appears to be a P-No.44 material.
According to Section VIII Table UCS-56, for P-No.4 material, I must stress relieve at 1200 deg F for 1hr/inch.
I find no guidance in Section VIII on pwht for P-No.44 materials.
However - manufacturer data from both Haynes and Special Metals, warn against stress relieving.
What advice is offered to determine the proper stress relief?
Thankyou.
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RE: PWHT for Section VIII Div 1, P-4 and P-44; Little Coaching Please.