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Tech Steel & Materials offers aluminum alloys in various shapes and sizes – rod, bar, sheet, plate, tube, pipe, shapes, castings and forgings – for use in engineering structures and components where specifications call for a light, pliable material with strong corrosion resistant properties.

Selected for its low density and ability to resist corrosion, aluminum maintains its shine and corrosion resistance when exposed to a dry environment due to the formation of a clear protective coating of aluminum oxide.

Generally speaking, aluminum alloys can achieve stiffer and lighter designs than are possible with steel.

Properties

Aluminum alloys are alloys in which aluminum (Al) is the principal metal. Aluminum is typically alloyed with copper, magnesium, manganese, silicon (Si) and zinc. Al-Si is considered the most important cast aluminum alloy due to a high amount of silicon, offering optimal casting characteristics. Aluminum-magnesium alloys are both lighter than other aluminum alloys and far less flammable than alloys that contain a very high level of magnesium.

Compared with other alloys, aluminum alloy is a relatively pliable, resilient, flexible and malleable metal with a silver to dull grey appearance, depending on the surface texture.

The two main classifications of aluminum alloys are namely casting alloys and wrought alloys. Both types of alloys can be further classified by their differing reactions to heat: heat-treatable and non-heat-treatable.

About 85% of aluminum is used for wrought products, such as rolled plates, foils and extrusions. Cast aluminum alloys are greatly cost effective due to their low melting point, but they are less malleable than wrought alloys.

Applications

Aluminum alloys are often used in engineering structures and the aerospace and transportation industries due to their high strength-to-weight ratio, since pure aluminum metal is much too soft for such uses, and it cannot meet industrial-strength specifications.

When selecting the right alloy for a given application, strength, density, formability, weight, malleability and corrosion resistance must be considered.

Select AMS Number:

AMS Number	Alloy	Type	UNS	Cross Ref. Spec	Misc./Shape
AMS 4013	Aluminum	Aluminum	-
AMS 4013 Laminated	Aluminum	Aluminum	-	MIL-S-22499	Laminated
AMS 4013 Sheet	Aluminum	Aluminum	-	MIL-S-22499	Sheet
AMS 4013 Shim	Aluminum	Aluminum	-	MIL-S-22499	Shim
AMS 4342	Aluminum	Aluminum	A97050	-	Extrusion
AMS 4914	Aluminum	Misc	-	-	Foil
AMS 5530	Aluminum	Misc	N10002
AMS 5530 Plate	Aluminum	Misc	N10002	-	Plate
AMS 5530 Sheet	Aluminum	Misc	N10002	-	Sheet
AMS 5530 Strip	Aluminum	Misc	N10002	-	Strip
AMS 5889	Aluminum	Nickel	N06617
AMS 5889 Inconel 617 Sheet	Aluminum	Nickel	N06617	-	Inconel 617 Sheet
AMS 5889 Inconel 617 Strip	Aluminum	Nickel	N06617	-	Inconel 617 Strip
AMS 5940	Aluminum	Misc	R30783
AMS 5940 Bar	Aluminum	Misc	R30783	-	Bar
AMS 5940 Forging	Aluminum	Misc	R30783	-	Forging
AMS 5940 Ring	Aluminum	Misc	R30783	-	Ring
AMS 6257	Aluminum	Steel	-
AMS 6257 Bar	Aluminum	Steel	-	-	Bar
AMS 6257 Forging	Aluminum	Steel	-	-	Forging
AMS 6257 Tubing	Aluminum	Steel	-	-	Tubing
AMS DTL 22499 1A	Aluminum	Aluminum	-	MIL-DTL-22499/1B	Shim
AMS DTL 22499 2A	Aluminum	Brass	-	MIL-DTL-22499/2A	Shim
AMS DTL 22499 3	Aluminum	CRES	-	MIL-DTL-22499/3B	Laminated
AMS DTL 22499 4	Aluminum	Steel	-	MIL-DTL-22499/4A	Laminated