Chemical Requirement Tables in Specs
Chemical Requirement Tables in Specs
(OP)
I have a few quick questions concerning the chemical requirements tables in ASTM specs.
1. What do the "..." portions mean. Does that mean there is no max/min/range for that chemical element? Does it mean that the material can't have any of that element in it?
2. What if a material has elements not called out in the spec at all. Can the material be certified to a spec if for instance it has Copper in it, but Copper is not even mentioned in the spec its trying to meet?
3. Is there any ASTM guide to reading specs? I did a search for one and could not find anything.
Thanks everyone!
1. What do the "..." portions mean. Does that mean there is no max/min/range for that chemical element? Does it mean that the material can't have any of that element in it?
2. What if a material has elements not called out in the spec at all. Can the material be certified to a spec if for instance it has Copper in it, but Copper is not even mentioned in the spec its trying to meet?
3. Is there any ASTM guide to reading specs? I did a search for one and could not find anything.
Thanks everyone!
RE: Chemical Requirement Tables in Specs
2. Yes, you can have presence of elements not identified in the standard and it does not cause a nonconformance.
3. None that I know of.
RE: Chemical Requirement Tables in Specs
3. There are guides in ASTM. I'll have to ask where to find it.
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Plymouth Tube
RE: Chemical Requirement Tables in Specs
These will govern things not listed in the product spec.
Regards,
Mike
RE: Chemical Requirement Tables in Specs
For example look at any ASTM specification that contains tables listing mechanical property or chemical composition requirements, values not listed are shown as ... because either elements stated or mechanical property test values do not apply.
RE: Chemical Requirement Tables in Specs
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