Hello,
I work at an ASME certified shop, and we receive all sorts of MTRs for the materials we use for the fabrication of pressure vessels. We've been asked a question though that has sent us up the food chain of material supply, and I'm lost for answers.
Do mills issuing MTRs require any special certification or licensing in order to write and issue an MTR?
I ask because a customer has asked if we can fabricate some unusual welded pipe diameters, and has asked that we certify the material by the welded pipe spec (A671 Gr CC70-CL22 in this case). By my understanding we would have to follow the A671 spec with regards to fabrication, testing, and marking, then issue our own MTR certifying the material.
Do we need any special licensing to issue an MTR? (We are in Canada if this makes any difference).
Cheers,
I work at an ASME certified shop, and we receive all sorts of MTRs for the materials we use for the fabrication of pressure vessels. We've been asked a question though that has sent us up the food chain of material supply, and I'm lost for answers.
Do mills issuing MTRs require any special certification or licensing in order to write and issue an MTR?
I ask because a customer has asked if we can fabricate some unusual welded pipe diameters, and has asked that we certify the material by the welded pipe spec (A671 Gr CC70-CL22 in this case). By my understanding we would have to follow the A671 spec with regards to fabrication, testing, and marking, then issue our own MTR certifying the material.
Do we need any special licensing to issue an MTR? (We are in Canada if this makes any difference).
Cheers,