whether we need to use Impact tested SS304L material for Pipe, Fittings , Flanges and Valves for servie temperatureof minus 175 Deg C ( -175 DegC)
As per ASME B 31.3, 323.2.2, ( Table A-1), For materials A312 TP 304L / A358 304L / A240 304L / A182 F304L / A403 WP304L, the lower limit for temperature is minus 253 DegC ( -253 DegC)
((323.2.2 Lower Temperature Limits, Listed Materials
(a)
A listed material may be used at any temperature not lower than the minimum shown in Table A-1, provided that the base metal, weld deposits, and heat affected
zone (HAZ) are qualified as required by the applicable entry in Column A of Table 323.2.2.))
Table 323.2.2, column A, A4 states impact testing is required if Carbon content is more than 0.1% or if the material is not solution heat treated.
So can I presume that If SS304L Pipe, fittings, flanges and valves, base materials are solution heat treated, we don't have to ask for impact testing
Could you please advise whether the presumption is correct?
Impact Testing Requirement for Stainless Steel
Re: impact testeing requirement for stainless steel
