Linepipe Chemical Properties Deviation
Linepipe Chemical Properties Deviation
(OP)
Dear All,
We have a linepipe specification (API 5L X-65 PSL2 LSAW)that requiring max chemical composition %wt as follow:
C:0.16, Mn:1.3, Si:0.45, P:0.015, S:0.003, V:0.08, Nb:0.05, Ti:0.04, Cr:0.2, Mo:0.1, Ni:0.35, Cu:0.4, Al:0.05, N:0.012, B:0.0005, Ca:0.006, CE:0.39, PCM:0.21
Unfortunately, the only MFR available can only supply material with following deviation:
C<=0.1, Mn<=1.6, Cr<=0.25, Mo<0.25
My question is whether this deviation will result in major properties changes? If not major, is it still acceptable? If not acceptable, what is the acceptance range?
Regards,
ekaputra
We have a linepipe specification (API 5L X-65 PSL2 LSAW)that requiring max chemical composition %wt as follow:
C:0.16, Mn:1.3, Si:0.45, P:0.015, S:0.003, V:0.08, Nb:0.05, Ti:0.04, Cr:0.2, Mo:0.1, Ni:0.35, Cu:0.4, Al:0.05, N:0.012, B:0.0005, Ca:0.006, CE:0.39, PCM:0.21
Unfortunately, the only MFR available can only supply material with following deviation:
C<=0.1, Mn<=1.6, Cr<=0.25, Mo<0.25
My question is whether this deviation will result in major properties changes? If not major, is it still acceptable? If not acceptable, what is the acceptance range?
Regards,
ekaputra





RE: Linepipe Chemical Properties Deviation
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Linepipe Chemical Properties Deviation
My preference is to maintain the requirement of C & Mn and allow deviation in Cr & Mo. My question is whether higher Cr & Mo have major impact to the final strength?
RE: Linepipe Chemical Properties Deviation
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Linepipe Chemical Properties Deviation