Impact test excemption curve for SA-350-LF2
Impact test excemption curve for SA-350-LF2
(OP)
Which impact test excemption curve SA-350-LF2 belongs to in UCS-66,2007 ASME Section VIII?The notes for the figure imply that forgings not listed would have curve B as applicable.
Is this correct for SA-350-LF2??
Thanks
Hiren
Is this correct for SA-350-LF2??
Thanks
Hiren





RE: Impact test excemption curve for SA-350-LF2
Yes, see Notes (2) and (3) in UCS-66. Material furnished under SA 350 is produced to a fine grain practice and is normalized or normalized and tempered or quenched and tempered.
RE: Impact test excemption curve for SA-350-LF2
Then according to Fig UCS 66(Edition 2007 page 173 Sec Viii Div 1) note (2) and Note(3)(b),Should not the SA-350 be under Curve C instead of Curve B,as SA-350 is produced to a fine grain practice and is normalized or normalized and tempered or quenched and tempered?
Thanks
RE: Impact test excemption curve for SA-350-LF2
Regards,
Mike
RE: Impact test excemption curve for SA-350-LF2
Second, regarding the impact curves and material, Curve B is applicable. If you read Note (2) in (b) of Figure UCS-66, there is specific reference to material product forms; "all pipe, fittings, forgings and tubing which are not listed for curves C and D below", the Note that might be confusing you is 3 (b) for Curve C material.
RE: Impact test excemption curve for SA-350-LF2
Regards,
Mike