Hardness vs Strength Aluminum Alloys

[metman]

For Steels I am conversant with the correlation of HB, HRC, Vickers, etc -- vs -- UTS.

Where can I find a similar correlation for Aluminum?

I have Vol. 1 and 2 of 8th Ed Metals Hdbk, access at work to MIl-Hbk-5H, and on-line access to ASM Desk editions but so far have not found anything but have not made a thorough search.

ASTM?

Jesus is THE life,
Leonard

 

[metengr]

Metman;
I was thumbing thru ASM Metals Handbook, Desk Edition (2nd Edition) the other day looking for hardness conversions and thought I saw a hardness/strength table for aluminum alloys.

 

[TVP]

Page H99 from the October 2000 issue of Advanced Materials & Processes has a table of hardness data and a graph showing hardness vs. tensile strength for a variety of Al alloys. The source is given as "Heat Treating of Aluminum Alloys" from ASM HANDBOOK Volume 4 Heat Treating, page 877 (1991 edition).

 

[metman]

Thanks for the speedy answers. Not sure if I have that issue of AM&P. Maybe it is available on-line with regular ASM membership? But first I will check Vol. 2 Heat Treating Cleaning and Finishing of 8th Ed. tomorrow at work and follow-up on the other leads as required.

Thanks again.

I am still interested to know if ASTM ties this down explicitly. At this time I am only interested in wrought Aluminum products.

Jesus is THE life,
Leonard

 

[unclesyd]

All of the small ALCOA handbooks have tables of data that give Brinell Hardness vs most of the Mechanical Properties,
UTS, Yield, Elongation, Shear, Endurance Limit, and Modulus

 

[Flesh]

As far as I know, ASTM does not and will not tie hardness to strength relationship in their standards for wrought products (Al-alloys). My vendors always dispute this relationship (no consistancy across products/producers) and thus will only guarantee strength value. Obviously, this can be frustrating to the end user since most of us don't feel like destroying a good part/material to verify strength. We just want to (non-destructively) check hardness and get on with life.

 

[IFRs]

The Aluminum Association gives hardnesses of alloys. For sections about 1/4" thick or less, use a Webster Tester to measure hardness. There are plenty of graphs to correlate hardness to tensile strength of aluminum alloys.

 

[metman]

Thanks to everyone. I found what I was looking for in ASM Metals Reference Book Third Edition under mechanical parperties of Aluminum but Flesh stated what I feared. Our Quality dep't would like to verify supplier material strength by hardness test which apparently is not a reliable method. Too much scatter?

I worked for a local aircraft sheet metal parts manufacturer who routinely hardness tested a coupon taken from incoming material. I plan to talk with their quality person to learn why their customers require these tests and what the tests are supposedly validating.

Jesus is THE life,
Leonard