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EN AC-Al Si7Mg | EN AC-42000 Material Datasheet

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Material Description

Material Number	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
EN AC-42000 (DIN EN 1706 : 2021-10)	EN AC-42000	DIN EN 1706 : 2021-10	Supersedes DIN EN 1706 : 2020-06	Valid	Germany	EN AC-Al Si7Mg	2.1	1)
1) Remark: Aluminum casting alloy (sand casting, permanent mould casting, investment casting). The alloy is food safe acc. to EN 601 and is used for the production of pressure equipment in accordance with EN 12392. Further properties according to EN 1706: Pressure tightness: good Machinability (as cast): good/fair Machinability after heat treatment: good Corrosion resistance: good/fair Weldability: fair

Chemical Composition

Cu [%]	Fe [%]	Mg [%]	Mn [%]	Ni [%]	Pb [%]	Si [%]	Sn [%]	Ti [%]	Zn [%]
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Mechanical Properties

Casting Method	Condition	Temperature [°C]	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]	Hardness HB \| HBW
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Physical Properties

Temperature [°C]	Density [g/cm³]	Young's Modulus [GPa]	Mean Coefficient of Thermal Expansion [10^-6*K^-1]	Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1]	Thermal Conductivity [W/(m*K)]	Electric Conductivity [MS/m]
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Welding and Joining

Welding and Joining - Evaluation
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Cross Reference

Material Name	Country	Standard
EN AC-Al Si7Mg	Germany	DIN EN 12392
EN AC-Al Si7Mg	Europe	EN 12392
EN AC-Al Si7Mg	Europe	EN 1706
AC4C	Japan	JIS H 5202	1)
356.0	USA	International Registration Record (AA)	1)
A13560	USA	UNS	2)
EN AC-AlSi7Mg	Germany	DIN 5513
LM25	Great Britain	BS 1490
VAR LM 25	Germany		3)
AlSi7Mg
AC-42000
AlSi7Mg0.5	Great Britain	BS 1490
LM27	Great Britain	BS 1490
AlSi7Cu2Mn0.5	Great Britain	BS 1490
1) Source: DIN EN 1706 : 2020-06 Annex D
2) Source: Worldwide Guide to Equivalent Nonferrous Metals and Alloys, ASM International, 2001
3) Source: VAR Verband der Aluminiumrecycling-Industrie e.V.

Producer/Supplier/Trade names

Tradename	Supplier
EN AC-Al Si7Mg	Hydro Aluminium Deutschland GmbH , Bonn
EN AC-Al Si7Mg	Stena Aluminium AB, Älmhult

Material Compliance

REACh	RoHS
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FKM Guideline Fatigue Strength

Casting Method	Condition	Stress Ratio	Number of Cycles	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Fatigue Limit under rev. Tension-Compression Stresses [MPa]	Fatigue Strength under pulsating Tensile Stresses [MPa]	Bending Fatigue Strength [MPa]	Shear Fatigue Strength [MPa]	Torsion Fatigue Strength [MPa]
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Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Bulk modulus [GPa]	Shear modulus [GPa]	Poisson's ratio
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Alternating stress

Temperature [°C]	Stress ratio	Mean stress [MPa]	Alternating stress [MPa]	Cycles
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Coefficient thermal expansion

Related Temperature [°C]	Temperature [°C]	Coefficient thermal expansion [10^-6*K^-1]
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Density

Temperature [°C]	Density [g/cm³]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Thermal conductivity

Temperature [°C]	Thermal conductivity [W/(m*K)]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Designation

Designation	Material number	Source
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Strain life

Temperature [°C]	Static hardening coefficient [MPa]	Static hardening exponent	Cyclic fatigue strength coefficient [MPa]	Cyclic fatigue strength exponent	Ductility coefficient [Pa]	Ductility exponent	Cyclic strength coefficient [MPa]	Cyclic strain hardening exponent	Young's modulus [GPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Alternating stress

Temperature [°C]	Stress ratio	Mean stress [MPa]	Alternating stress [MPa]	Cycles
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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EN AC-Al Si7Mg | EN AC-42000 Material Datasheet

Material Test Series Values

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Mechanical Properties

Physical Properties

Welding and Joining

Cross Reference

Producer/Supplier/Trade names

Material Compliance

FKM Guideline Fatigue Strength

Linear-elastic

Alternating stress

Yield strength

Coefficient thermal expansion

Density

Tensile strength

Thermal conductivity

Classification

Designation

Yield strength

Tensile strength

Classification

Strain life

Classification

Alternating stress

Classification

Yield strength

Tensile strength

Classification

Yield strength

Tensile strength

Classification

EN AC-Al Si7Mg | EN AC-42000 Material Datasheet

Material Test Series Values

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Mechanical Properties

Physical Properties

Welding and Joining

Cross Reference

Producer/Supplier/Trade names

Material Compliance

FKM Guideline Fatigue Strength

EN AC-Al Si7Mg (EN AC-42000; DIN EN 1706 : 2021-10)

Linear-elastic

Alternating stress

Yield strength

Coefficient thermal expansion

Density

Tensile strength

Thermal conductivity

Classification

Designation

EN AC-Al Si7Mg (T6 (solution heat-treated and then artificially aged))

Yield strength

Tensile strength

Classification

EN AC-Al Si7Mg (T6 (solution heat-treated and then artificially aged); 9.5mm; fracture)

Strain life

Classification

EN AC-Al Si7Mg (T6 (solution heat-treated and then artificially aged); casting; tension/compression; fracture)

Alternating stress

Classification

EN AC-Al Si7Mg (T64 (solution heat-treated and then artificially aged in underaging conditions (between T6 and T61) to improve formability))

Yield strength

Tensile strength

Classification

EN AC-Al Si7Mg (cast condition)

Yield strength

Tensile strength

Classification