ALmitas+ GM55 (high-strength, high-formability materials)

An alternative to steel plates

An aluminum alloy plate that is 1.5 times stronger than the standard aluminum alloy plate (A5052). It can be used as an alternative to cold rolled steel sheets, in various types of housing and electrical/information equipment. Both its lighter weight and thinner structure result in cost reductions.

Features
Applications
Properties
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Features

1.5 times stronger than A5052, the representative aluminum alloy plate for use in structures. This enables thinner walled structures, resulting in lower weight and cost.
It has equivalent strength to cold-rolled steel sheets, which it can replace to achieve lighter weight.
ALmitas+ GM55 has 33% elongation compared with the 25% of A5052 soft material (O material), enabling previously problematic bending and deep drawing.

Applications

Various housings including PDP back covers, digital cameras, CD ROMs, MD frames, general electrical and information equipment

Properties

1.5X increase in tensile strength, proof stress

Mechanical properties

Alloy		Tensile strength（N/mm²）	Yield strength （N/mm²）	Elongation （％）
GM55	H38	390	310	10
	H34	350	250	15
	O	290	130	33
GM145	H36	360	300	9
	H34	340	260	10
	O	290	150	25
GC150	H32	330	240	18
	H31	300	178	26
	O	290	135	30
A5052 （Comparison material）	H36	275	240	8
	H34	260	215	10
	O	195	90	25
6061	T6	320	270	12

The above are representative values.

Mechanical properties

Manufacturable range

Alloy	Range
GM55	0.2 mmt or higher
GM145	0.18 mmt or higher
GC150	0.5 mmt or higher

Please contact us for further information on manufacturable range.

Chemical composition

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Al
GM55	＜ 0.15	＜ 0.20	＜ 0.05	0.15 - 0.30	5.0 - 6.0	＜ 0.15	＜ 0.25	＜ 0.10	Balance
GM145	＜ 0.20	＜ 0.35	0.05 - 0.10	0.20 - 0.50	4.0 - 5.0	＜ 0.10	＜ 0.25	-	Balance
GC150	＜ 0.20	＜ 0.35	0.05 - 0.6	＜ 0.30	4.0 - 6.0	＜ 0.15	＜ 0.25	＜ 0.30	Balance
A5052P	＜ 0.20	＜ 0.40	＜ 0.10	0.10 - 0.50	2.2 - 2.8	0.15 - 0.35	＜ 0.10	-	Balance

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