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Old material designation?

Old material designation?

Old material designation?

So I'm going through a CMM for an Airbus Component and they reference the following materials:

Z 100C 17 Steel
AU 2 CN (T6)
UA 10N

I tried a couple of these and didn't get any useful search results. Could anyone narrow down the search range for me so I can find out what these materials are? I'm guessing it's a spec from a specific European Country that got rolled into a more commonly references spec.

Thanks all,


Kirby Wilkerson

Remember, first define the problem, then solve it.

RE: Old material designation?

French AIR 9160C for Z 100C 17 Steel

Possibly AIR 9048 for AU 2 CN (don't have a complete copy of this one to confirm).

No idea about the other two.

RE: Old material designation?

KW... any 'context' for these fragments of spec numbers???

I assuming You've already tried the ASM handbook for alloys VS specifications? I've forgotten the title... will look for it.

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

RE: Old material designation?

I was actually thinking these were the specs that I wasn't able to find. I was just wanting the equivalent alloy designation that I'm familiar with. I don't have an ASM handbook. I'll get me a copy. This is just for reference. When they tell me a material, I like to know what it is. I could just say steel. and aluminum and not worry about it, until I need to know. That just makes feel like I've done an incomplete job.

Here's some snippets from the CMM for a servo motor:

Thanks all,


Kirby Wilkerson

Remember, first define the problem, then solve it.

RE: Old material designation?

At least 2, if not all of them are AFNOR AIR specifications, which are often written without the gaps so (ASM metals handbooks for one).

RE: Old material designation?

UA10N is a common French Aluminum Nickel Bronze alloy used for aerospace bushings. It's typically expressed as CuAl10Ni5Fe3 - try LeBronze alloys, had no issues getting this material in bar or tube stock. Spent many years working in a US division of a French OEM and material alternatives, especially to aircraft designed in the 1960's and 1970's, was a constant project. You may also encounter another bronze alloy, UZ19A6, which is a common French bushing material.

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