ACP 7(R)

Excellent machining properties with high demands on mechanical properties and material stability.

The precision surface machined plate ACP 7 or ACP 7R, the latter with a sawn surface, is particularly suitable for applications with high demands on mechanical properties in combination with excellent machining properties. As the world‘s leading manufacturer of aluminium cast plates, with ACP 7 we have succeeded in achieving outstanding cast plate quality in the EN AW 7000 alloy range.

Technical data / specific properties

Chemical Composition

EN AW-7021 (Al Zn5.5Mg1.5), according to DIN EN 573-3

 

Material Properties

Machinability

very good (HSC/HPC)

Dimensional Stability

very good

Polishing

very good

Weldability (TIG, MIG)

good

Anodising Properties

acceptable

Corrosion Resistance

acceptable

 

Typical Mechanical Properties

Tensile Strength Rm

330 – 360 MPa (N/mm2)

0.2 % Yield Strength Rp 0.2

300 – 340 MPa (N/mm2)

Elongation A

1 – 2 %

Brinell Hardness

121 HB

 

Typical Physical Properties

Density

2.78 g/cm3

Thermal Conductivity

150 W/(mK)

Electrical Conductivity

19 – 23 MS/m (m/Ω mm2)

Modulus of Elasticity

~72,000 N/mm2

Coefficient of Thermal Expansion

23.7 * 10-6/K-1

 

ACP 7 Standard Sizes

Thickness

10 – 200 mm

Width

1520 mm

Length

3020 mm

 

ACP 7 Tolerances

Surface Finish Ra

≤ 0.4 µm

Tolerance in Thickness

+/- 0.1 mm

Flatness

10 – 12 mm thickness: on request
>12 – 200 mm thickness: ≤ 0.13 mm

(Linear measured section 1 m)

 

Tolerance in Width for Plates

0/+10 mm

Tolerance in Length for Plates

0/+15 mm

Tolerance (L/W) for cur pieces

DIN ISO 2768-m

(Linear measured section 1 m)

Other tolerances on request.

 

 

ACP 7R Standard Sizes

Thickness

15 – 500 mm

Width

1520 – 2020 mm

Length

3020 – 4020 mm

 

Standard plate formats:

≥ 15 – 400 mm x 1520 mm x 3020 mm
≥ 50 – 500 mm x 2020 mm x 4020 mm

Other dimensions on request.

ACP 7R Tolerances

Surface

sawn on all sides

Tolerance in Thickness

0/+3 mm

Tolerance in Width for Plates

0/+10 mm

Tolerance in Length for Plates

0/+15 mm

Tolerance (L/W) for cut pieces

0/+3 mm
(Linear measured section 1 m)

Other tolerances on request.