Dear Experts,
Good Morning
I have a piping class with Low-Temperature Service. LPG Service.
WPS and PQR Details as below :
Material: ASTM A333 Gr.6 to ASTM 350 Gr.LF2.
Thickness - 12.7 mm, WPS Thickness Range - 6.35 mm to 18.00mm
Process - GTAW+SMAW
AWS Class- ER80S-Ni 1 / E7018 H4 R , SFA No- A5.28 / 5.1,
Impacte test @ -48°C
Hardness - 228 HV
According to my line class required Low Temperature and LPG Service.
I understand that sour service required NACE requirements.
I have a doubt regarding the above service required NACE requirement, so how I can know that service required NACE or Not.
And according to API 582 ER80S-Ni 1 not recommended and also hardness value shall be 225 BHN, but I couldn't find the hardness in API 582?
My client is not accepting ER80S-Ni 1 / Hardness - 228 HV, he needs according to API 582.
Please I am looking at your feedback in details on my doubt.
Thanks in advance.
Regards
Kiran
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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