Difference between AISI code and AMS spec?
Difference between AISI code and AMS spec?
(OP)
Hello,
I am trying to put together purchasing specifications for 6061-T6 .06thk sheet. In the MMPDS-09 it calls out 3 specifications 'AMS 4025' 'AMS4026' and 'AMS4027' under the table with material properties for 6061-T6.
What is the best way to order these materials? By the 6061-T6 designation or one of the AMS designations?
I suppose I have a general confusion on the differences.
Thank
I am trying to put together purchasing specifications for 6061-T6 .06thk sheet. In the MMPDS-09 it calls out 3 specifications 'AMS 4025' 'AMS4026' and 'AMS4027' under the table with material properties for 6061-T6.
What is the best way to order these materials? By the 6061-T6 designation or one of the AMS designations?
I suppose I have a general confusion on the differences.
Thank





RE: Difference between AISI code and AMS spec?
Need to specify AMS spec and temper.
RE: Difference between AISI code and AMS spec?
If you want 6061 sheet in -T6 condition then order AMS 4027.
RE: Difference between AISI code and AMS spec?
Even today using an UNS designation is just chemistry.
For properties, tolerances, testing and such you need a product specification such as ASTM, SAE, AMS, AMSE.
I am gald that you got it sorted out.
If you ever put such a spec on documentation it would behoove you to buy a copy of the spec, so that you actually know what is included and what is not covered.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Difference between AISI code and AMS spec?
NOTE.
Aluminum alloys are covered by AMS and ASTM specs [primarily]. The Aluminum Association as fundamental specs for alloy designations and tempers [plus a few other aspects of aluminum, such as tolerances for raw stock].
NOTE.
Allowables in MMPDS-xx are only applicable to the form-alloy-temper-specification listed
NOTE.
AISI [American Institute of Iron and steel] specs will never apply to aluminum/aluminum alloys.
Examples for designation of an aluminum alloy per AMS specs [RE tbuelna's examples, above]... Typical PL listings written-out in NOTE-form...
0.062"-thick aluminum sheet, 6061-T6, AMS4027
0.062"-thick aluminum sheet, 6061-T6 [AMS4027] when wearing my M&P hat, I prefer this simple format
0.062"-thick aluminum sheet, 6061-T6 per AMS2047
0.062"-thick aluminum sheet, 6061-O [AMS4025]. After forming, heat treat to -T62 per AMS2770.
0.375"-thick aluminum plate, 6061-T6 [AMS4047]
IF interested, I can present typical examples of aerospace PL listings for steel/CRES parts.
Regards, Wil Taylor
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