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vishmayor
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Join Date: Nov 2006
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Good Answers: 1

USN material specifications

02/02/2008 9:56 PM

I need specifications and chemistry of USN 3001 and USN3002, Can someone help, this material is used for some automotive applications.

Thanks

vshwn7@aol.com
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Rorschach
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#1

Re: USN material specifications

02/04/2008 4:58 PM

You have given an incorrect/incomplete number. There are not enough digits for a valid UNS designation.

The number should follow the format UNS XYYYYY where X is going to be an alpha designator for the general alloy group, followed by 5 numbers. Some common ones are C for copper alloys, S for steels N for nickel alloys R for refractory alloys (which may include nickel alloys that are for use at high temps).

An example would be 304 stainless. The UNS designation is UNS S30400.


Further, UNS numbers ONLY control chemistry. Not cold work, strength, grain size, or heat treating. Nor do they control geometry of form.

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RCE
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Join Date: Dec 2007
Location: California
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#2
In reply to #1

Re: USN material specifications

02/04/2008 6:44 PM

Hmm, do you think the government might flag your communications on a watch list for giving out USN material specifications online?
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vishmayor
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#3
In reply to #1

Re: USN material specifications

02/04/2008 9:15 PM

My numbers are NOT UNS, they are USN materials, and I believe the numbers I mentioned are correct. You are confusing the numbers with the Unified system of numbering alloys.

vshwn7@aol.com
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Rorschach
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#4
In reply to #3

Re: USN material specifications

02/06/2008 9:22 AM

Very sorry, I thought there had been a typo somewhere along the way.

You can find most US DOD/fed specifications here:

http://assist.daps.dla.mil/quicksearch/

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