We have a requirement for welding ASTM A335 P36 to 316/316L Stainless Steel
I believe the ideal procedure would be to butter the P36 with ErNiCr-3 and PWHT, then join to the 316/316L after using ErNiCr-3 again..
However, I've heard of people welding dissimilar joints involving Carbon steel...
I've ran 2 PQR tests on duplex stainless steels.
1 X PQR on 22%Cr duplex UNS S31803 - 76mm OD X 19.1mm THK machined from forged bar
1 X PQR on 25%Cr super duplex UNS S32760 - 76mm OD X 19.1mm THK machined from forged bar
GTAW, 98Ar 2N shield & purge
Both PQRs have failed on tensiles in the...
I need to use two seperate PQR's for the welding on a P1 Low temp CS product. PWHT is req. due to the thickness. Impacts req. due to material.
PQR 1 has a pwht range of 625 - 635
PQR 2 has a pwht range of 600 - 620
As impacts are required QW407.2 states that a change in PWHT temperature and...
I'm running a new ASME PQR test, hard-facing overlay on to stainless steel bar
If my PQR test piece is 20mm Dia bar. What is the base metal thickness qualified?
Also what is the Weld metal thickness qualified if weld metal thickness = 3mm?
