How to get old materials new mtrs?
How to get old materials new mtrs?
(OP)
We have a bunch of old pipe and bar on the shelf... we no longer need it but the mtrs were lost. How can you get new mtrs if there is no idea where it came from? is this possible? and if so, any idea as far as cost? Thank you!





RE: How to get old materials new mtrs?
Do you still have heat lot segregation?
If so then it is a matter of getting chemistry and mechanical testing done. But the catch is that YOU will be generating the CMTR (certified material test report). Because lot control is in your hands, this becomes your responsibility.
Or it is scrap.
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Plymouth Tube
RE: How to get old materials new mtrs?
RE: How to get old materials new mtrs?
RE: How to get old materials new mtrs?
RE: How to get old materials new mtrs?
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Plymouth Tube
RE: How to get old materials new mtrs?
RE: How to get old materials new mtrs?
How can a lab certify to this requirement? Well, I guess they can certify to anything they want, but the certification won't be accurate.
I have to agree with REGRUMBLE, an independent lab can perform chemical, mechanical, even metallurgical tests, but they cannot (accurately) certify to the method of manufacture (or country) if they don't have traceability.
rp
RE: How to get old materials new mtrs?
RE: How to get old materials new mtrs?
County of origin could be an issue.
As would any non-destructive testing that may have been required.
If the spec involved are chem and mech only then you can do it.
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Plymouth Tube
RE: How to get old materials new mtrs?
Or, to look at it another way, if you know the material was purchased "to one of a few specifications", and you can determine which one of those specifications it meets, then you haven't lost traceability. If you can't determine which one of those specifications it meets, you don't have traceability.
Now, for many specifications, traceability to melting practice is not a requirement. But, for those where it is, you can't produce traceability from a tensile test and a chemical analysis. I realize it is done fairly often, but that does not make it right. I mean, if all that was important was the chemical analysis and mechanical properties, why do the specifications have requirements for melting practices, reduction ratio's, etc...
rp
RE: How to get old materials new mtrs?
Another approach is to sell the materials to a surplus equipment dealers that carries pipe and let them dispose of it. We took this approach for surplus pipe from canceled projects. Probably a third of the pipe had a pedigree.