What level of material traceability ids required for API 650 tanks?
What level of material traceability ids required for API 650 tanks?
(OP)
We have supplied an API 650 storage tank in loose plate to a site in north Alberta canada. Plates are 350WT cold weather steel. we provided whole MTRs to client but we can not exactly tell them each part made out of exactly which heat #. they refer us generally to appendix n of API 650 and claim that there should be exact piece mark trace-ability for each piece of plate. is it true? I think what they claim is an ASME VIII requirement not API650. am I right? How to convince them.





RE: What level of material traceability ids required for API 650 tanks?
RE: What level of material traceability ids required for API 650 tanks?
RE: What level of material traceability ids required for API 650 tanks?
Due to this plate being for cold service hence the impact requirements (350WT) this makes traceability that much more critical for the client. Each plate should have low-stress stampings with supplier name, Heat/Batch #'s, Job/Tank # etc and how it correlates to your plate run-off drawings and plan views for a material map.
Ultimately this will come down to probably looking through old purchase orders and plate cut lists to identify these stacks of plate. Are you using other grades on the same job?
RE: What level of material traceability ids required for API 650 tanks?