Aluminum Standards

[dik]

When aluminum type 6061 or 5052 is specified, is there a spec body that is inferred? like AISI, ASTM or something of that ilk? Is there a proper way to spec the material?

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So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[EdStainless]

For what application? There are many standards.
The ASTM are the most common in industry.

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P.E. Metallurgy, consulting work welcomed

 

[phamENG]

No, not that I'm aware of. The alloy number is part of the "unified numbering system."

An ASTM is specified for the shapes, though. Those ASTM's will include extrusion tolerances, etc. A few are alloy specific, but many are alloy agnostic if not completely neutral.

 

[dik]

Thanks pham

I've designed some aluminum stairs in 5052 aluminum and was wondering how to specify it... looks like UNS A5052 will have to be sufficient. I'm familiar with 6061, and the client wanted to use 5052 because it's easier to work with and nearly as good, albeit not as strong, and I didn't want to just use 'Aluminum 5052'; I thought there should be more. The ASTM spec is B210, but not specifically for that alloy.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[rb1957]

we use AA/QQA or MS specs, eq attached for 6061 ...

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[dik]

Thanks...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[ClearCalcs]

When I was working in aluminum design-build (almost exclusively with 6061-T6), we'd generally spec ASTM B221 for extrusions. That's typically what our suppliers would have on the MTRs as well. For plate we'd sometimes ask for B209 as you get a slightly higher ultimate strength (290 MPa vs 260 MPa, makes a difference as tensile rupture typically governs for 6061-T6) - though in practice most MTRs came in well over 300 MPa regardless.

On drawings we would indicate "Aluminum 6061-T6" for materials.

-Laurent

http://www.ClearCalcs.com

 

[dik]

Thanks Clear: These are just for a simple stair with spans of 2 or 3'... No high strength... only issues are the attachment of the aluminum to concrete and the regular mild steel that is part of the framing. Also SS fasteners to connect the aluminum together...

alkali and galvanic corrosion issues...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik