Aluminium Alloy Standards and Comparison

Comparison of alloy designations for aluminum flat products.

Alloy Series	General Standard	American Standard	European Standard
1xxx Series	1050
	1050A		EN AW-1050A
	1060	1060
	1100	1100
	1200		EN AW-1200
	1145	1145
	1235	1235	EN AW-1235
2xxx Series	2014	2014	EN AW-2014
	2017
			EN AW-2017A
	2024	2024	EN AW-2024
3xxx Series	3003	3003	EN AW-3003
	3004	3004	EN AW-3004
	3005	3005	EN AW-3005
	3105	3105	EN AW-3105
5xxx Series	5005	5005	EN AW-5005
	5052	5052	EN AW-5052
		5754	EN AW-5754
	5083	5083	EN AW-5083
6xxx Series	6061	6061	EN AW-6061
	6082		EN AW-6082
7xxx Series	7075	7075	EN AW-7075
8xxx Series	8011
	8011A		EN AW-8011A
	8079		EN AW-8079

Aluminium temper designations and Classifications.

There are several aluminium heat treatment classifications are defined. These designations are defined as per the different needs and applications of the customers .

Temper	Definition
F	As fabricated (no mechanical property limits specified)  No special control has been performed to the heat treatment or strain hardening after the shaping process such as casting, hot working, or cold working
O	Annealed.This is the lowest strength, highest ductility temper.
H12	Stain Hardened, 1/4 Hard
H14	Stain Hardened, 1/2 Hard
H16	Stain Hardened, 3/4 Hard
H18	Stain Hardened, Full Hard
H19	Stain Hardened, Extra Hard
H111	Annealed and slightly strain hardened (less than H11)
H112	Slightly strain harden from working at an elevated temperature or from limited amount of cold work
H116	Applies to alloys in the 5xxx series with a magnesium content of 3% or more, slightly strain harden at last operation, exfoliation and intergranular corrosion resistance are specified
H22	Stain Hardened and Partially Annealed, 1/4 Hard
H24	Stain Hardened and Partially Annealed, 1/2 Hard
H26	Stain Hardened and Partially Annealed, 3/4 Hard
H28	Stain Hardened and Partially Annealed, Full Hard
H32	Stain Hardened and stabilized, 1/4 Hard
H34	Stain Hardened and stabilized, 1/2 Hard
H36	Stain Hardened and stabilized, 3/4 Hard
H38	Stain Hardened and stabilized, Full Hard
H321	Applies to alloys in the 5xxx series with a magnesium content of 3% or more, strain hardened and stabilized at last operation, exfoliation and intergranular corrosion resistance are specified
H42	Stain Hardened and painted or lacquered, 1/4 Hard
H44	Stain Hardened and painted or lacquered, 1/2 Hard
H46	Stain Hardened and painted or lacquered, 3/4 Hard
H48	Stain Hardened and painted or lacquered, Full Hard
T351	Solution heat-treated, cold worked, stress relived by stretching, and naturally aged
T4	Solution heat-treated and naturally aged
T451	Solution heat-treated , stress relived by stretching, and naturally aged
T6	Solution heat-treated and then artificially aged
T651	Solution heat-treated, stress relived by stretching, and artificially aged
T1	Cooled from an elevated temperature shaping process and naturally aged to a substantially stable condition.
T2	Cooled from an elevated temperature shaping process, cold worked, and naturally aged to a substantially stable condition.
T3	Solution heat treated, cold worked, and naturally aged to a substantially stable condition.
T4	Solution heat treated, and naturally aged to a substantially stable condition.
T5	Cooled from an elevated temperature shaping process then artificially aged.
T6	Solution heat treated then artificially aged.
T7	Solution heat treated then overaged/stabilized.
T8	Solution heat treated, cold worked, then artificially aged.
T9	Solution heat treated, artificially aged, then cold worked.
T10	Cooled from an elevated temperature shaping process, cold worked, then artificially aged.