Six-Sides Sawn Aluminium Cast Plates Impact-706 (EN AW 7021)

Home » Materials » Aluminium Plate » Six-Sides Sawn Aluminium Cast Plates Impact-706 (EN AW 7021)

If the requirements towards the strength are high and the component must endure heavy loads, this is the ideal solution. The six-sides sawn cast aluminium plate is characterised by very good machinability, very high strength and very low residual stresses. Therefore it is an excellent solution for multiple applications under heavy loads in mechanical engineering and mould-making.

The very good ability for polishing leads to excellent product quality and a very long lifetime of injection and foaming moulds. Even components with excessive machining can be realised easily.

Comprehensive range of both Metric and Imperial sizes are available to order.

This product appears in: Aluminium Plate

Get a Quote Call Us Email Us

Description
Technical Information

Product Overview

Alloy (According to EN 573-3) – AIZn5,5Mg1,5
Temper – Heat-treatable
Surface – six-sides sawn < 15 μm/<0.000591 in.

Tolerances

Thickness in [mm]/[in.] – Plates ≤ 150 mm:-0/+2.5mm Plates ≤ 5.90 in.:-0/+0.1
Flatness [mm/m9]/[in.] – Plates > 150mm:-0/+5mm Plates > 5.90 in.: -0/+0.2
Plate tolerances width/length [mm]/[in.] – -0/+10, -0/+0.394
Sawing tolerance width/length [mm]/[in.] – -0/+20, -0/+0.787

Specific Notes

Excellent form stability
Stress relieved
High strength
Very good machinability
Six-sides sawn

Fields of Application

Mould-making in plastics and the automotive industry.

Injection moulds (for low and medium pressure)
Deep drawing and casting moulds
Foaming and blowing moulds (for low pressure)
Tool-changing equipment
Bearing blocks and fittings for bigger loads

Product Overview	Six-Sides Sawn Aluminium Plates
Product Name	Impact 706 (EN AW 7021)
Alloy	AIZn5,5MgI,5 Heat Treatable
Temper	Hardened T79
Surface	Six-sides sawn <15μm/<0.000591 in.

Mechanical Properties
Yield Strength Rp0,2 [MPa]/[ksi]	290-340/42-47
Ultimate Tensile Strength Rm [MPa]/[ksi]	320-380/46-55
Elongation A [%]	2.5-4.5
Hardness HBW [2.5/62.5]	110-120

Physical Properties
Density [g/cm3]/[lbs/cu.in.]	2.80/0.101
Module of elasticity [GPa]/[ksi 10³]	70/10.2
Electrical conductivity [m/mm2]/[% IACS]	21-24/38-43
Coefficient of thermal expansion [K-I 10-6]/[10-6/°F]	23.0/12.9
Thermal Conductivity [W/m K]/[BTU in./ft²hr°F]	125-155/72-90
Specific heat capacity [J/kg K]/[BTU/lb°F]	875/0.206

Processing Characteristics
Form Stability	2
Machining	1-2
Welding (Gas/TIG/MIG/resistance/EB)	6/5/2/6/1
Corrosion Resistance (seawater/weather/stress cracking)	4/3/4
Use at temperatures (max. °C long/short therms)/(max/ °F long/short Therms)	120/140/248/284
Anodising (technical/decorative/hard)	3/6/2
Polishing	1-2
Etching	2-3
Contact with food (according to EN 602)	no

Tolerances
Thickness in [mm]/[in.]	Plates ≤ 150 mm:-0/+2.5 mm Plates >150 mm:-0/+5 mm
Flatness [mm/m9]/[in.]	Plates ≤ 5.90 in.:-0/+0.1 Plates > 5.90 in.:-0/+0.2
Plate tolerance width/length [mm]/[in.]	Thickness ≤ 150 mm = DIN ISO 2768-Im/Thickness > 150 mm = -0/+5 mm
Sawing tolerance width/length [mm]/[in.]	Thickness ≤ 5.9 in. = -0/+0.1/Thickness > 5.9 in. = -0/+ 0.2

Can we help?