Automobiles

Types and Applications of Aluminum Alloys for Automobiles

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For various structural materials and body panels

UACJ's aluminum rolled products employ our leading sheet thickness control and advanced extrusion technologies. We offer a range of products covering the wide variety of automobile materials, from body panels to interior parts such as piping, through to license plates.
UACJ's aluminum rolled products are manufactured in our cutting-edge works under rigorous quality and environmental management systems with ISO 9001 and ISO 14001 certification, supported by our leading sheet thickness control and high-quality extrusion technologies.

1000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
1050 1050 A50 Excellent processability and surface treatability; the most corrosion-resistant of all aluminum alloys Heat insulators
1100 1100 A30 General-purpose aluminum with a purity of 99.0% or higher. The same as A50, except that the appearance is slightly whiter after anodizing
Heat insulators, license plates
1200 1200 A0 Heat insulators

2000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
2014 2014 14S Corrosion resistance is inferior due to a relatively higher copper content, but it has high strength and is used for structural components Motorbike steering wheels, ABS
2017 2017 17S Shock absorbers, steering wheel spokes, conrods
2024 2024 24S
2219 2219 B19S High strength, excellent low-and high-temperature properties and weldability, but inferior corrosion resistance Rotors
CG29 An alloy with higher strength at elevated temperatures than that of 2618 Conrods, pistons
CB256
CB156
Lead-free free-machining alloys AT valves

3000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
3003 3003 303S About 10% stronger than 1100, with good processability and corrosion resistance Piping
3004 3004 604S Stronger than 3003, with excellent deep-drawability and good corrosion resistance Cowl grilles, heat insulators

4000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
4032 4032 32S Excellent heat and abrasion resistance, with a low thermal expansion coefficient Pistons
SC100 An alloy with excellent abrasion resistance and forgeability; stronger than 4032 Power steering housing, compressor scrolls, valve lifters
SC300 A stronger version of SC100
TF06B
TF08
TF10B
An alloy with excellent abrasion resistance and forgeability; stronger than 4032
TF12B A hypereutectic alloy with enhanced forgeability Compressor rotors

5000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
5052 5052 52S A medium-strength alloy with good corrosion resistance and processability
Also has high fatigue strength
Meter display panels, AT drums, airbag inflators, covers
5454 5454 D54S 20% stronger than 5052
Good corrosion resistance
Wheel rims, suspension components
5083 5083 183S
An alloy for use in welded structures
The strongest of the non-heat-treated alloys
Tanks, gas cylinders
383S A high formability version of 183S
Also has excellent superplastic properties
483S
NP5/6
An extrusion alloy version of 5083 Lashing rails
5182 5182 A82S Nearly as strong as 5083, with good processability and corrosion resistance Dust covers, seat frames, air cleaner cases, spring sheets
GM145 Good formability and stress corrosion cracking performance Body panels (inner)
5154 5154 A154S 20% stronger than 5052
Good formability
Wheels, underbody components, drivetrain components, suspension components
A254S 20% stronger than 5052
An alloy with good formability and consideration given to stress corrosion cracking performance
GC32 Good formability and stress corrosion cracking performance
5022 GC45 A high-strength, high-formability alloy for body panels, with low coat-baking proof stress reduction Engine hoods, sunroofs, doors, center pillars, oil pans, floors, wheel housings, rear fenders, crossmember, air cleaner cases
GC150 A slightly stronger alloy than GC45 Body panels (inner)
5110A 5110 257S A high-brightness alloy with strength equivalent to 3003
Good deep-drawability and corrosion resistance
Moldings, trims, reflective panels, headlamp bulb shades
5056 5056 356S A non-heat-treated alloy for welded structures with excellent seawater resistance Brake pistons, fuel delivery pipes, airbag inflators

6000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
SG712
TM30
A bake-hardenable alloy for body panels Engine hoods, rear fenders, front fenders, center pillars, wheel housings, sunroofs, doors, crossmembers
TM66 A bake-hardenable alloy for body panels
Higher proof stress and strength than SG112, with good formability
6061 6061 61S
161S
Heat-treated, corrosion-resistant aluminum alloys ABS, fittings for anti-vibration rubber, wheels, propeller shafts, arms, links, airbags, joists, receiver tanks
561S Power plant frames
6013 SG210 A high-strength aluminum alloy for forging Suspension arms
6063 6063 63S
163S
Y63
Typical extrusion alloys.
Lower strength than 6061, but superior extrudability and capable of complex shapes
Moldings, seat frames, truck bed gates, sunroof railings, piping
6005C 6005C 465S
L55
An extrusion alloy with intermediate strength between 6061 and 6063, with good corrosion resistance and weldability Bumper reinforcement, side sills, space frames, engine mount brackets, seat frames, ABS, shock absorber outer cylinders
SG109 A high-strength alloy with good bendability and corrosion resistance
Hollow extrusion is possible
Bumper reinforcement, space frames
SG10
SG310
The strongest of the 6000 series aluminum alloys Wheels, propeller shafts, arms, links
GT209
KS69S
Lead-free free machining alloys AT valves

7000 Series Alloys

Alloy designation Features Use in automobiles
AA* JIS UACJ
7075 7075 75S A typical high-strength alloy for use in aircraft Seatbelt hinges, bobbins, retractors
7178 7178 A78S The strongest of all aluminum alloys
Inferior corrosion resistance
Keys
7003 7003 ZK60
K73

An extrusion alloy for welded structures.
Better extrudability than 7204

Bumper reinforcement, seat sliders, motorbike frames, door impact beams, motorbike rims
7204 7204 ZK141
K70
Alloys for welded structures
The strength at the welded part recovers almost to that of the raw material through natural aging
Jacks, steering components, crossmembers, brake pedals, steering wheel cores, bumper fascias
7204 7204 ZK147
K70Y
Jacks
ZK55 A weldable alloy that is even stronger than 7204
Hollow extrusion is possible
Bumper reinforcement, impact beams, motorbike frames and rims
7046 ZK170
7050 7050 ZG62 High-strength aluminum alloys Front forks
ZC88

* AA: The Aluminum Association (U.S.A.)