United States · AMS

7175

SAE AMS A 22771C:2012 — Aluminum Alloy Forgings,Heat Treated

Chemical composition

wt% · log scale

min – max range
typical value

Mechanical properties

value range by condition

Chemical composition

Element	min	max	Similar	Remarks
Al			Bal	Bal
Cr	0.18	0.28
Cu	1.2	2
Fe		0.2
Mg	2.1	2.9
Mn		0.1
Others total		0.05
Si		0.15
Ti		0.1
Total Others		0.15
Zn	5.1	6.1

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Hardness
Hand forgings, Solution heat treated and artificially overaged +T74, <= 76, 2 mm	≤414；≤435	≤490；≤503；≤476	≤5；≤9；≤4
Hand forgings, Solution heat treated and artificially overaged +T74, <= 76, HB				2 mm (specimen axis short transverse) ≤135；2 mm (specimen axis long transverse) ≤135；2 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T74, > 101, 6 <= 127 mm	≤387；≤393；≤380	≤462；≤469；≤455	≤5；≤8；≤4
Hand forgings, Solution heat treated and artificially overaged +T74, > 101, HB				6 <= 127 mm (specimen axis short transverse) ≤135；6 <= 127 mm (specimen axis long transverse) ≤135；6 <= 127 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T74, > 127 <= 152, 4 mm	≤359；≤373	≤441；≤448；≤435	≤5；≤8；≤4
Hand forgings, Solution heat treated and artificially overaged +T74, > 127 <= 152, HB				4 mm (specimen axis short transverse) ≤135；4 mm (specimen axis long transverse) ≤135；4 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T74, > 76, 6 mm, 2 <= 101	400；421；393	483；490；469	5；9；4
Hand forgings, Solution heat treated and artificially overaged +T74, > 76, 6 mm, HB				2 <= 101 135
Hand forgings, Solution heat treated and artificially overaged +T7452, <= 76, 2 mm	≤400；≤421；≤373	≤476；≤490；≤462	≤5；≤9；≤4
Hand forgings, Solution heat treated and artificially overaged +T7452, <= 76, HB				2 mm (specimen axis short transverse) ≤135；2 mm (specimen axis long transverse) ≤135；2 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T7452, > 101, 6 <= 127 mm	≤359；≤373；≤338	≤441；≤448；≤435	≤5；≤8；≤4
Hand forgings, Solution heat treated and artificially overaged +T7452, > 101, HB				6 <= 127 mm (specimen axis short transverse) ≤135；6 <= 127 mm (specimen axis long transverse) ≤135；6 <= 127 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T7452, > 127 <= 152, 4 mm	≤338；≤352；≤317	≤421；≤435；≤414	≤5；≤8；≤4
Hand forgings, Solution heat treated and artificially overaged +T7452, > 127 <= 152, HB				4 mm (specimen axis short transverse) ≤135；4 mm (specimen axis long transverse) ≤135；4 mm (specimen axis longitudinal) ≤135
Hand forgings, Solution heat treated and artificially overaged +T7452, > 76, 6 mm, 2 <= 101	380；393；352	462；469；448	5；9；4
Hand forgings, Solution heat treated and artificially overaged +T7452, > 76, 6 mm, HB				2 <= 101 135
die forgings, Solution heat treated and artificially overaged +T74, <= 76, 2 mm	≤428；≤455	≤490；≤524	≤4；≤7
die forgings, Solution heat treated and artificially overaged +T74, <= 76, HB				2 mm (specimen axis parallel to direction of grain flow lines) ≤135；2 mm (specimen axis not parallel to direction of grain flow lines) ≤135
die forgings, Solution heat treated and artificially overaged +T7452, <= 76, 2 mm	≤380；≤435	≤469；≤503	≤4；≤7
die forgings, Solution heat treated and artificially overaged +T7452, <= 76, HB				2 mm (specimen axis parallel to direction of grain flow lines) ≤135；2 mm (specimen axis not parallel to direction of grain flow lines) ≤135
die forgings, Solution heat treated and artificially overaged +T7454, <= 76, 2 mm	≤421；≤448	≤483；≤517	≤4；≤7