DIN 1725-1 Grade 3.2316 T6 – High-Strength, Heat-Resistant Alloy

This cold and hot hardenable material reaches mechanical strength of 200 to 250 MPa with A5-elongation at break of approx. 10 %. In warm and/or cold-hardened condition is this alloy only limited formable, in the soft material condition however well. Weldability, corrosion resistance and anodisingability of this material are good. However this alloy is used more for rivet or bolt joints, because of the destabilization danger in the welding zone. 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, 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	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	20.0 °C	73.0	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Elongation	20.0 °C	8.0 %	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Hardness, Brinell	20.0 °C	75.0 [-]	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
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	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Tensile strength	20.0 °C	275.0 MPa	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging

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)	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Electrical conductivity	20.0 °C	24000000.0 - 32000000.0 S/m	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Electrical resistivity		2.9e-08 - 5e-08 Ω·m				Typical for Wrought 6000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.03	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Copper	0.05	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Iron	0.25	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Magnesium	0.6 - 0.7 %	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Manganese	0.15	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Silicon	0.8 - 1.0 %	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Titanium	0.05	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging
Zinc	0.1	T6	DIN 1725-1, EN 573-3, EN 573-4	Forging

Technological properties

Property
Workability	Excellent workability.

Property

Workability

Excellent workability.

DIN 17172 RRStE 210.7 Hot-Finished Steel Tubes – Ideal for Combustible Liquid Pipelines EN 573-3 AW-3003 Aluminum Alloy: Superior Corrosion Resistance & Versatile Weldability

Metal