DIN 1725-1 Grade 3.1325 T4

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Description

The alloy AlCuMg1 belongs to the type of alloy (AlCuMg type), which found of the aluminum wrought machine materials as first in the technology use. Alloys of this type are cold and warm hardenable. They reach thereby high mechanical strength and are relatively heat resistant even in soft condition. In the cold-hardened condition this alloy reaches strength grades to maximally F 41. Warm ageing is not in practice usual for reasons of the corrosion resistance worsening this condition. Even in the cold-hardened condition a surface protection is necessary. It is disadvantageous, that even the smallest mistake in heat treatment results in decreasing of strength as well as the bad ability for hot forming and difficult weldability of this alloy. Its particularly good splinter-giving workability is remarkable, whereby screws and rivets are suitable for joining elements. Due to the high strength the alloy AlCuMg1 is particularly well suitable for construction units, which are exposed to higher static loading. Heat treatment for hardening: solution annealing: 495 to 505 °C, quenching in water cold ageing: 5 to 8 d at ambient temperature hot ageing: 16 to 24 h at 180 to 195 °C Application: In mechanical engineering (including building of forms) for machine tables, hydraulic turned parts, for tools, devices (baseplates, head and stamp retaining plates as well as guide plates). Furthermore as joining elements (screws, solid rivets), in the automobile engineering as bumpers, as axle box cases, as body and safety-related parts and in the transportation for air freight containers as well as in the aircraft construction.

Related Standards

Equivalent Materials

This material data has been provided by WIAM,AluKey.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density		2.8 g/cm³ Show Material materials with Density of 2.8 g/cm³	T4	EN 573-3, EN 1301, EN 485, EN 755
	20.0 °C	2.8 g/cm³ Show Material materials with Density of 2.8 g/cm³	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Bending Fatigue Strength		130.0 MPa Show Material materials with Bending Fatigue Strength of 130.0 MPa	T4	EN 573-3, EN 485, EN 755
Bending angle 180°		3.0 °/t Show Material materials with Bending angle 180° of 3.0 °/t	T4	EN 573-3, EN 485
		5.0 °/t Show Material materials with Bending angle 180° of 5.0 °/t	T4	EN 573-3, EN 485
Bending angle 90°		3.0 °/t Show Material materials with Bending angle 90° of 3.0 °/t	T4	EN 573-3, EN 485
		5.0 °/t Show Material materials with Bending angle 90° of 5.0 °/t	T4	EN 573-3, EN 485
		8.0 °/t Show Material materials with Bending angle 90° of 8.0 °/t	T4	EN 573-3, EN 485
Elastic modulus		72.5 GPa Show Material materials with Elastic modulus of 72.5 GPa	T4	EN 573-3, EN 1301, EN 485, EN 755
	20.0 °C	65.0 - 73.5 GPa Show Material materials with Elastic modulus of 65.0 - 73.5 GPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire
Elongation		2.0 % Show Material materials with Elongation of 2.0 %	T4	EN 573-3, EN 485		A100
		4.0 % Show Material materials with Elongation of 4.0 %	T4	EN 573-3, EN 485		A100
		6.0 % Show Material materials with Elongation of 6.0 %	T4	EN 573-3, EN 485		A100
		7.0 % Show Material materials with Elongation of 7.0 %	T4	EN 573-3, EN 485, EN 755		A100
		8.0 % Show Material materials with Elongation of 8.0 %	T4	EN 573-3, EN 755		A100
		8.0 % Show Material materials with Elongation of 8.0 %	T4	EN 573-3, EN 755		A50
		9.0 % Show Material materials with Elongation of 9.0 %	T4	EN 573-3, EN 755		A100
		10.0 % Show Material materials with Elongation of 10.0 %	T4	EN 573-3, EN 755		A100
		10.0 % Show Material materials with Elongation of 10.0 %	T4	EN 573-3, EN 755		A50
		12.0 % Show Material materials with Elongation of 12.0 %	T4	EN 573-3, EN 485, EN 755		A100
		13.0 % Show Material materials with Elongation of 13.0 %	T4	EN 573-3, EN 485		A50
		14.0 % Show Material materials with Elongation of 14.0 %	T4	EN 573-3, EN 485		A50
		15.0 % Show Material materials with Elongation of 15.0 %	T4	EN 573-3, EN 485		A50
		18.0 % Show Material materials with Elongation of 18.0 %	T4	EN 573-3, EN 1301
	20.0 °C	4.0 % Show Material materials with Elongation of 4.0 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Wire	A100
	20.0 °C	8.0 % Show Material materials with Elongation of 8.0 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Wire	A10
	20.0 °C	10.0 % Show Material materials with Elongation of 10.0 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging
Hardness, Brinell		101.0 [-] Show Material materials with Hardness, Brinell of 101.0 [-]	T4	EN 573-3, EN 485
		105.0 [-] Show Material materials with Hardness, Brinell of 105.0 [-]	T4	EN 573-3, EN 485
		108.0 [-] Show Material materials with Hardness, Brinell of 108.0 [-]	T4	EN 573-3, EN 485
		110.0 [-] Show Material materials with Hardness, Brinell of 110.0 [-]	T4	EN 573-3, EN 485
		111.0 [-] Show Material materials with Hardness, Brinell of 111.0 [-]	T4	EN 573-3, EN 485
	20.0 °C	95.0 [-] Show Material materials with Hardness, Brinell of 95.0 [-]	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging
	20.0 °C	100.0 [-] Show Material materials with Hardness, Brinell of 100.0 [-]	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Wire
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 35.0 MPa·√m				Typical for Wrought 2000 Series Aluminium
Poisson's ratio		0.33 [-] Show Material materials with Poisson's ratio of 0.33 [-]				Typical for Wrought 2000 Series Aluminium
Shear modulus		27.2 GPa Show Material materials with Shear modulus of 27.2 GPa	T4	EN 573-3, EN 1301, EN 485, EN 755
	20.0 °C	26.0 - 28.5 GPa Show Material materials with Shear modulus of 26.0 - 28.5 GPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire
Shear strength	20.0 °C	260.0 MPa Show Material materials with Shear strength of 260.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Wire
Tensile strength		300.0 MPa Show Material materials with Tensile strength of 300.0 MPa	T4	EN 573-3, EN 485
		330.0 MPa Show Material materials with Tensile strength of 330.0 MPa	T4	EN 573-3, EN 485
		350.0 MPa Show Material materials with Tensile strength of 350.0 MPa	T4	EN 573-3, EN 485
		360.0 MPa Show Material materials with Tensile strength of 360.0 MPa	T4	EN 573-3, EN 485, EN 755
		370.0 MPa Show Material materials with Tensile strength of 370.0 MPa	T4	EN 573-3, EN 485, EN 755
		380.0 MPa Show Material materials with Tensile strength of 380.0 MPa	T4	EN 573-3, EN 1301, EN 755
		385.0 MPa Show Material materials with Tensile strength of 385.0 MPa	T4	EN 573-3, EN 485
		390.0 MPa Show Material materials with Tensile strength of 390.0 MPa	T4	EN 573-3, EN 485, EN 755
		400.0 MPa Show Material materials with Tensile strength of 400.0 MPa	T4	EN 573-3, EN 755
	20.0 °C	380.0 MPa Show Material materials with Tensile strength of 380.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire
	20.0 °C	436.0 MPa Show Material materials with Tensile strength of 436.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	100.0 °C	394.0 MPa Show Material materials with Tensile strength of 394.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	150.0 °C	281.0 MPa Show Material materials with Tensile strength of 281.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	200.0 °C	155.0 MPa Show Material materials with Tensile strength of 155.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	250.0 °C	84.0 MPa Show Material materials with Tensile strength of 84.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	300.0 °C	46.0 MPa Show Material materials with Tensile strength of 46.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1
	370.0 °C	32.0 MPa Show Material materials with Tensile strength of 32.0 MPa	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape
Coefficient of thermal expansion	20 °C	2.3e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.3e-05 1/K	T4	EN 573-3, EN 1301, EN 485, EN 755
	100 °C	2.3e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.3e-05 1/K	T4	EN 573-3, EN 1301, EN 485, EN 755
Melting point		512.0 - 650.0 °C Show Material materials with Melting point of 512.0 - 650.0 °C	T4	EN 573-3, EN 1301, EN 485, EN 755
Specific heat capacity	20.0 °C	921.0 J/(kg·K) Show Material materials with Specific heat capacity of 921.0 J/(kg·K)	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire
Thermal conductivity	20.0 °C	130.0 - 200.0 W/(m·K) Show Material materials with Thermal conductivity of 130.0 - 200.0 W/(m·K)	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape
Electrical conductivity	20.0 °C	18000000.0 - 28000000.0 S/m Show Material materials with Electrical conductivity of 18000000.0 - 28000000.0 S/m	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Electrical resistivity		3.57e-08 - 5.56e-08 Ω·m Show Material materials with Electrical resistivity of 3.57e-08 - 5.56e-08 Ω·m	T4	EN 573-3, EN 1301, EN 485, EN 755

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.1 % Show Material materials with Chromium of 0.1 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Copper	3.5 - 4.5 % Show Material materials with Copper of 3.5 - 4.5 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Iron	0.7 % Show Material materials with Iron of 0.7 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1	Forging, Wire
	0.70 % Show Material materials with Iron of 0.70 %	T4	EN 573-3, EN 1301, EN 485, EN 755
Magnesium	0.4 - 1.0 % Show Material materials with Magnesium of 0.4 - 1.0 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Manganese	0.4 - 1.0 % Show Material materials with Manganese of 0.4 - 1.0 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Silicon	0.2 - 0.8 % Show Material materials with Silicon of 0.2 - 0.8 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire
Zinc	0.25 % Show Material materials with Zinc of 0.25 %	T4	DIN 1725-1, EN 573-3, EN 573-4, WL 3.1324-1, EN 1301, EN 485, EN 755	Forging, Wire

Technological properties

Property
Anodizing	decorative: not suitable, Protective: good
Brazing	hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable
Corrosion properties	Seawater: poor, weathering: sufficient
Workability	Bending / Spinning (cold): good / acceptable, Impact extrusion (cold): acceptable, Deep drawing / upsetting (Condition) acceptable (O) / acceptable (O)

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