← Back to Aluminum Alloy
WSS-M2A175 aluminum slit coils

WSS-M2A175 A1 / A2 / A3 / A4 / A5 / A6

Ford specification for direct-cast, 6000-series heat-treatable aluminum sheet

WSS-M2A175 covers 6000-series aluminum sheet for stamped automotive body parts. Grades A1 to A6 differ in chemistry, strength, formability and paint-bake response, so the right grade depends on the part and its forming route.

Aluminum body parts combine high strength and stiffness with low weight, helping the body keep its shape and absorb impact energy in a collision.

Material: WSS-M2A175 (Ford)

Application: Stamped automotive body panels and parts

Width: To customer requirement

Grades: A1, A2, A3, A4, A5, A6

Product form: Coil, slit coil, sheet, plate

Supply: Die-tryout material and series production

Width tolerance: ±0.05 mm

WSS-M2A175 aluminum coils

Table 1: Ladle Chemical Composition (weight percent maximum, unless shown as a range or a minimum; balance Al)

A1/A2 A3 A4 A5/A6
Si 0.55 – 0.95 0.50 – 1.00 0.30 – 0.60 0.45-0.75
Fe 0.30 0.30 0.30 0.60
Cu 0.50 – 0.80 0.20 0.20 0.20-0.30
Mn 0.30 0.15 0.15 0.10
Mg 0.55 – 0.95 0.40 – 0.80 0.40 – 0.70 0.75- 1.00
Cr 0.10 0.05 0.05 0.05-0.25
Zn 0.10 0.10 0.10 0.10
Ti 0.10 0.10 0.10 0.10
Others (each) 0.05 0.05 0.05 0.05
Others (total) 0.15 0.15 0.15 0.15

Table 2: Mechanical Properties (minimum, unless shown as a range or maximum)

A1/A2 A3 A4 A5 A6
Yield Strength, MPa (0.2% offset) 125 – 185 125 – 185 170 – 210 83 max 83 max
Yield Strength at 180 days*, MPa, max 195 195 210 N/A N/A
Ultimate Tensile Strength, MPa 200 – 300 220 – 300 240 – 290 152 max 152 max
Uniform Elongation, % 19 19 15 N/A N/A
Total Elongation, % N/A N/A N/A 15 15
ravg 0.50 0.50 0.50 N/A N/A
r45 0.30 0.30 Report Only N/A N/A
Yield Strength After 2% Strain + T81, Mpa 180 180 N/A N/A N/A
Yield Strength (T82), MPa 260 N/A N/A N/A N/A
Yield Strength (T72), MPa N/A N/A N/A 200 N/A
Yield Strength (T52), MPa N/A N/A N/A N/A 180
Bendability After T82, r/t, max 0.40 N/A Report Only N/A N/A
Bendability After T72, r/t, max (L-direction) N/A N/A N/A 0.30 N/A
Bendability After T52, r/t, max (L-direction) N/A N/A N/A N/A 0.30
Long Term Thermal Stability After T81, ∆YS MPa N/A N/A +\- 25 N/A N/A
Minimum Retained Ductility After T81, % N/A N/A 14 N/A N/A
Minimum Retained Ductility After T82 + T81, % 10 N/A N/A N/A N/A