Thanks guys for your responses.
Actually there is a mistake on my post, the nuts being specified is A194 7 / 7M so no impact testing is required.
The biggest bolt dia we are using is 1". The spec doesn't seem to differentiate change in nut based on size, they are using the 7M nut across all...
Hello,
Typically in piping specification we see A193 B7 / B7M studs matched with A194 2H / 2HM nuts. However in one particular project client has used A193 B7/B7M along with A194 L7 / L7M nuts.
I have dug into project specifications and documents but could not find a reasoning for this...