DIN 1725‑1 Grade 3.3206 T8 – High‑Strength, Corrosion‑Resistant Alloy for Automotive Extrusion

This cold and hot hardenable material reaches mechanical strength from 200 to 250 MPa with A5-elongation at break of approx. 10 %. In the warm and cold-hardened state this alloy is only limited ductile, in the soft material condition however well. Weldability, corrosion resistance and anodising of this material are good. Due to the special suitability of this alloy for the extrusion those are present lot of profile cross-sectional shapes for application in static loading case in the automobile construction or in the building industry. The company Erbsloeh Aluminum leads under evenly this material number among other things the trade name AlMgSi0,3. It pay attention that only two further trade names (6030 and 466) of this company to this designation are to be assigned. Heat treatment for hardening: solution annealing: 525 to 540 °C, quenching on air or in water cold ageing: 5 to 8 d at ambient temperatures hot ageing: 4 to 16 h at 155 to 190 °C. Application: Window, doors, window walls, front plates, roller shutter, roll gates, bearing constructions, heat exchanger (gilled pipes), commercial motor vehicle superstructures, machine tables, metal goods, food industry, equipment of rail-mounted vehicles (stroke sun roofs, railroad car doors), optics, reflectors, operating sectors of hydraulic/pneumatics in mechanical engineering, trunk superstructures in the boat and shipbuilding, sail masts, road signs, trim in the automobile engineering, shower cubicles, fences and partitions, pipings in compressed gas tanks, camping furniture.

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, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	67.0 GPa	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Elongation	20.0 °C	2.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Wire	A100
	20.0 °C	5.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Wire	A10
	20.0 °C	6.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile	A10
	20.0 °C	8.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile	A10
	20.0 °C	8.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile
	20.0 °C	10.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile	A10
	20.0 °C	10.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
	20.0 °C	12.0 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
Hardness, Brinell	20.0 °C	70.0 [-]	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
	20.0 °C	75.0 [-]	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
	20.0 °C	85.0 [-]	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Wire
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	25.0 GPa	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Tensile strength	20.0 °C	215.0 MPa	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
	20.0 °C	245.0 MPa	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Rod, Tube, Profile
	20.0 °C	300.0 MPa	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Wire

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	220.0 W/(m·K)	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Electrical conductivity	20.0 °C	30000000.0 - 32000000.0 S/m	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Electrical resistivity		2.9e-08 - 5e-08 Ω·m				Typical for Wrought 6000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.05	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Copper	0.1	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Iron	0.1 - 0.3 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Magnesium	0.35 - 0.6 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Manganese	0.1	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Silicon	0.3 - 0.6 %	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Titanium	0.1	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire
Zinc	0.15	T8	DIN 1725-1, EN 573-3, EN 573-4, VdTÜV WB 492, VdTÜV WB 420-4	Profile, Rod, Tube, Wire

Technological properties

Property
Workability	Excellent workability.

Property

Workability

Excellent workability.

DIN 1725-1 Grade 3.3206 T3 Alloy – 200–250 MPa Strength, Weldability & Automotive Profile Applications EN 573-3 Grade H13 (DIN 3.3211) – High‑Performance, Corrosion‑Resistant Steel for Industrial Applications

Metal