DIN 1725-1 Grade 3.3210 T8: High-Strength Hardenable Alloy

This cold and hot hardenable material reaches mechanical properties from 200 to 250 MPa with A5-elongations at break of approx. 10 %. In warm and cold-hardened condition is this alloy only limited ductile, in the soft material condition however well. The Weldability, the corrosion resistance and the ability for anodising are good. However this alloy is used more for rivet or bolt joints, because of the destabilization arising within the welding seam range. Heat treatment for hardening: solution annealing: 525 to 540 °C, quenching on air or in water cold ageing: 5 to 8 d at ambient temperature hot ageing: 4 to 16 h at 155 to 190 °C Application: In the construction of vehicles for vehicle floors, bordwaende, stands, commercial motor vehicle superstructures of all kinds, trim. In the building industry for window, doors, window walls, shower cubicles, fences. In the building of rail-mounted vehicles for car boxes. In shipbuilding for sail masts, sail trees. In mechanical engineering (including building of forms) and for metal goods (e.g. building fittings, table-ware, flow pressed parts, reflectors).

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density	20.0 °C	2.7 g/cm³	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	73.0	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Elongation	20.0 °C	6.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube	A10
	20.0 °C	8.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Hardness, Brinell	20.0 °C	85.0 [-]	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
	20.0 °C	90.0 [-]	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m				Typical for Wrought 6000 Series Aluminium
Poisson's ratio		0.33 [-]				Typical for Wrought 6000 Series Aluminium
Shear modulus	20.0 °C	27.0	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Tensile strength	20.0 °C	260.0 MPa	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
	20.0 °C	270.0 MPa	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Coefficient of thermal expansion		1.6e-05 - 2.4e-05 1/K				Typical for Wrought 6000 Series Aluminium
Melting point		555.0 - 655.0 °C				Typical for Wrought 6000 Series Aluminium
Specific heat capacity		887.0 - 963.0 J/(kg·K)				Typical for Wrought 6000 Series Aluminium
Thermal conductivity	20.0 °C	170.0 - 220.0 W/(m·K)	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Electrical conductivity	20.0 °C	24000000.0 - 32000000.0 S/m	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Electrical resistivity		2.9e-08 - 5e-08 Ω·m				Typical for Wrought 6000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.3	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Copper	0.3	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Iron	0.35	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Magnesium	0.4 - 0.7 %	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Manganese	0.5	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Silicon	0.5 - 0.9 %	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Titanium	0.1	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube
Zinc	0.2	T8	DIN 1725-1, EN 573-3, EN 573-4	Profile, Tube

Technological properties

Property
Workability	Excellent workability.

Property

Workability

Excellent workability.

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Metal