NACE MR0103 weld procedures for Duplex SS
NACE MR0103 weld procedures for Duplex SS
(OP)
MR0103-2007, Section 2.8.2(f) for weld procedures for Duplex stainless steels states "The WPS shall not allow welding of components with wall thicknesses that deviate by more than 20% from that of the PQR specimen.
This seems quite restrictive compared to normal ASME allowance of 2X the wall thickness of the PQR specimen. Does anyone know if this is correct, or if it is really supposed to be 200% (same as ASME) ?
Thanks,
bangrod
This seems quite restrictive compared to normal ASME allowance of 2X the wall thickness of the PQR specimen. Does anyone know if this is correct, or if it is really supposed to be 200% (same as ASME) ?
Thanks,
bangrod





RE: NACE MR0103 weld procedures for Duplex SS
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04