Page 14 - MFi Vol.152 ATZ Extra Issue 2019

Popular Aluminum Alloys for Automobiles

Various types of aluminum alloys are used for automotive components according to the
strength, formability and corrosion resistance required at each point of application.

Alloy AA* 1 UACJ Tensile strength Proof stress Elongation
series Equivalent alloys (by quality) (N/mm ) 2 (N/mm ) 2 (%) Sheet Extrusion Characteristics of materials
Luminous aluminum alloy sheet
1085 A85-H26 120 15 Surface quality: LF, HB
1000 Luminous aluminum alloy sheet
Al A370-O 85 40 Surface quality: BF, MF
Luminous aluminum alloy sheet
A370-H24 120 23 Surface quality: BF, MF
High-strength alloy for extrusion
2013 113S-T6 400 375 12
Hollow extrusion performance: Good
2014 2014-T4 420 285 20 High-strength alloy for extrusion

2014 2014-T6 480 410 13 High-strength alloy for extrusion
2017 2017-T4 440 275 22 High-strength alloy for extrusion
2000
Al-Cu
2024 2024-T4 470 325 19 High-strength alloy for extrusion
High-strength alloy for forging
2014 2014-T6 480 410 13
Forgeability & machinability: Excellent
High-strength alloy for forging
Motor Fan illustrated
2618-T6 440 370 10 Forgeability & machinability: Excellent
High-strength alloy for forging
CG29-T6 520 400 14
Forgeability & machinability: Excellent
3000 Alloy for tubing
Al-Mn 3003-O 115 40 40 Hollow extrusion performance: Good
Wear-resistant alloy for forging
4032 4032-T6 380 315 9 Forgeability, machinability, corrosion resistance: Good
Wear-resistant alloy for forging
TF068-T6 380 245 10 Forgeability, machinability, corrosion resistance: Good
4000
Al-Si Wear-resistant alloy for forging
SC100-T6 440 390 8 Forgeability, machinability, corrosion resistance: Good
ALUMINUM AUTOMOBILE TECHNOLOGY
Wear-resistant alloy for forging
TF128-T6 430 380 8 Forgeability, machinability, corrosion resistance: Good
14 Alloy for body panels
5052 52S-O 205 105 28
2
n value * =0.26, r value=0.70
Alloy for body panels
5182 GM145-O 270 120 28 n value * =0.33, r value=0.55
2
Alloy for body panels
5022 GC45-O 280 140 32 n value * =0.31, r value=0.70
2
High-strength alloy for structural purposes
5052 52S-O 205 105 28
Shear strength: 120N/mm 2
High-strength alloy for structural purposes
5454 D54S-O 225 100 27 Stress corrosion cracking resistance: Excellent
High-strength alloy for structural purposes
5154 A254S-O 240 115 27 Stress corrosion cracking resistance: Good
5000 High-strength alloy for structural purposes
Al-Mg 5083 183S-O 290 145 24 Shear strength: 170N/mm 2
Luminous aluminum alloy sheet
5110A 257S-O 110 30 Surface quality: HB, BF, MF
Luminous aluminum alloy sheet
5110A 257S-H24 150 15 Surface quality: HB, BF, MF
Luminous aluminum alloy sheet
5657 F57S-H26 170 12
Surface quality: LF, HB, BF
Luminous aluminum alloy sheet
5252 B152S-H24 220 10 Surface quality: BF
5154 254S/5154-O 240 117 27 High-strength alloy for extrusion
5083 5083-O 290 145 25 High-strength alloy for extrusion
1
* AA: The Aluminum Association (U.S.A.) Note: The list is made for each alloy series giving priority to the point of
* Average value between 2% and maximum load application for automobiles, so some material qualities may be indicated
2
repeatedly. The figures are measures of central tendency, not
*Baking conditions for BH-type alloy for body panels: guaranteed values.
Test value after applying 2% pre-distortion and 20 min at 170°C