ASTM pipe materials
ASTM pipe materials
(OP)
Hi, friends. There are many pipes marked for TP 304 and TP 304L simultaneously nowadays in Brasil. This is not correct. Which is the tolerance for carbon quantity (under and over) for pipe according ASTM A312 TP 304 in comparision with ASTM A 312 TP 304L to separate them?





RE: ASTM pipe materials
TP 304 0.08% max
TP 304L 0.035 max
Hope that helps,
Regards,
Kiwi
RE: ASTM pipe materials
RE: ASTM pipe materials
As RConnor has stated if it complies with all the requirements of both it can be dual certified - no problem,
Cheers,
Kiwi
RE: ASTM pipe materials
Dual certification has become standard mill practice world wide. There is no minimum carbon content requirement only a maximum defined; also only minimum tensile properties defined - again no maximum limits. It is no longer more expensive for mills to produce the low carbon grades.