May 6, 2019

Aluminum EN-AC42100 (EN AC-AL Si7Mg0.3)

EN-AC42100 (EN AC-AL Si7Mg0.3) is one popular AlSi7Mg alloy, widely application.

Reference Standard

DIN EN 1706:2013 Aluminium and aluminium alloys – Castings – Chemical composition and mechanical properties  


Casting Manufacture Process for EN-AC42100 (EN AC-AL Si7Mg0.3):

  • Sand Casting
  • Permanent Mold Casting
  • Investment Casting


EN-AC42100 (EN AC-AL Si7Mg0.3) Chemical Requirement

StandardEN 1706
NumericalEN AC-42100
Chemical SymbolsEN AC-AL Si7Mg0.3
Fe max0.19


Cu max0.05


Mn max0.10


Ni max
Zn max0.07
Pb max
Sn max


Others, each0.03
Others, total0.10

Our Services

  1. Sand Casting

    Casting Quality focus on Metal Parts industry, we provide professional service in Metal Casting field.

    Sand Casting is a popular metal form method, are suitable for all materiel, such as grey iron, ductile iron, malleable iron, carbon steel, stainless steel, aluminum and bronze.

  2. Investment Casting

    also named as precision lost wax casting, mainly suitalbe for carbon steel and stainless steel parts. We also provide grey iron and ductile iron and aluminum and bronze parts by investment casting. It can achieve the best appearance with good tolerance

  3. Shell Casting

    Shell casting method is a good option to replace investment casting and sand casting. the quality is better than sand casting parts, suitable for bulk production.

  4. CNC Machining

    CNC Milling, CNC turning with 5 xix CNC center, we provide precision machining for all castings based on customers design drawings.

  5. CAD Design

    Mechanical Design service based on customers requirement, our software is Solidworks and AutoCAD.

  6. Tools/Mold Design

    Mould design and production will be served for metal casting ad plastic injection industry. Based on our more than 10 years experience, we supply professional molds for our customers in Europe and North American.


EN-AC42100 (EN AC-AL Si7Mg0.3) Mechanical Property

StandardEN 1706EN 1706EN 1706EN 1706
NumericalEN AC-42100EN AC-42100EN AC-42100EN AC-42100
Chemical SymbolsEN AC-AL Si7Mg0.3EN AC-AL Si7Mg0.3EN AC-AL Si7Mg0.3EN AC-AL Si7Mg0.3
Separately Cast Test PiecesSand CastChill CastInvestment CastPressure Die Cast
Temper DesignationT6T6T64T6
Tensile Strength  Rm


Yield Strength Rp0.2

Mpa, min

Elongation, A


Hardness, HBW, min75908075


Heat Treatment Process for EN-AC42100 (EN AC-AL Si7Mg0.3)

T6, solution heat treated and fully artificially aged

T64, solution heat treated and artificially under-aged


EN-AC42100 (EN AC-AL Si7Mg0.3) Application

Building Industry

Machinery Spare Parts

Metal Castings

Aluminium , ,
About China Castings
sand casting, investment casting, CNC machining and other castings from Chinese foundry

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