At out company, we usually specify SAE J403 as the reference spec for mild steels and SAE J2340 for HSLA steels. The problem I see, is that J403 is a chemical compostion spec and the equivalent spec for alloy steels would be J404. Similarily J2340 is mechanical (mostly) and J2329 would be equivalent for low carbon steels.
But each of these (J403 vs J2329, or J404 vs J2340) appear to refer to different grades (different grade systems, even).
When we choose materials for our designs, it is usually based on mechanical properties such as yield strength and UTS, not chemical composition.
We use sheet steel and coil steel, and I learned that until recently we were using mechanical properties from J1397 which is a bar stock spec.
To make things worse, we also use steel HREW tubing, and SAE doesn't even have a spec for that so we ask for HREW SAE J-something, but I think the tube mills all use ASTM for there specs!!!!!
How do I straighten this all out!!!???
Thanks,
Jeff
But each of these (J403 vs J2329, or J404 vs J2340) appear to refer to different grades (different grade systems, even).
When we choose materials for our designs, it is usually based on mechanical properties such as yield strength and UTS, not chemical composition.
We use sheet steel and coil steel, and I learned that until recently we were using mechanical properties from J1397 which is a bar stock spec.
To make things worse, we also use steel HREW tubing, and SAE doesn't even have a spec for that so we ask for HREW SAE J-something, but I think the tube mills all use ASTM for there specs!!!!!
How do I straighten this all out!!!???
Thanks,
Jeff