Dear Experts,
In our project we qualified The PQR as per sec IX, Material X-65 (GROUP-2),consumable: E8010-P1& E8018GH4R,thk 11.91
.PROCESS: SMAW. PROJECT: PIPELINE. service GAS line.
client requirement is the impact testing shall be conduct at the design metal temperature or 0deg c which ever is lower.
So we take account from our PMS MDMT is -18degc, each consumable we done the impact test including sub size size specimen temperature penalty also calculated.
1. E-8010-P1 specimen size is 3mm penalty temperature is 22.2deg as per31.3 table 323.3.4 (design temperature + penalty)= -41deg c.
2. E-8018GH4R specimen size is 8mm no penalty impact temperature is same as MDMT -18deg c.
Accordingly above mentioned list we followed and conducted impact test also passed , now the client questing why you done the high value impact test conducted.
Please advice is there any wrong calculation. if wrong please correct me.
Regards,
Srinivasan.M
No comments:
Post a Comment