First glances of Welding Codes Application:
Initial Concepts of Variables:
The Changes of Variables affecting to WPS qualification status:
* Groove changes mean : U —> V, J —> V, X —> V ect., (excluded the T-Y-K Jacket joints)
* CJP groove mean of using Backing/Backgouging
* Groove weld is different with Fillet weld (Weld type including Groove & Fillet)
WPS with Groove type can cover the Fillet, but Fillet WPS can cover only Fillet weld
* ONLY FOR AWS D1.1 (33) – ROOT FACE/GAP,BEVEL ANGELNot that the others joint design change like Excessive Root Gap (>5mm – backing ,>8mm – buildup or increase leg size ect.,) is relating to Practical correcting solutions to matching the WPS designate, NOT to Re-qualify the WPS.
BUT HOW ABOUT ASME IX WPS FOR BELOW CASE:
1 – REVISING WPS (IN CASE OF SERIOUS CONCEPTS: HARDNESS/CORROSION/IMPACT)
2 – TECHNICAL QUERY OR MOCK-UP TEST TO BE PRESENT (IN CASE OF SERIOUS CONCEPTS: HARDNESS/CORROSION-NACE COMPLIANCE/IMPACT/FN CONTENT).
Duplex SS is susceptible to embrittlement Heat temp’ (600-800*C) which relating to metallurgy aspect and will be discussed in Metallurgy topic.