Magnesium Casting, Magnesium Die Casting

JC Casting is a magnesium casting manufacturer including magnesium die casting. We have a strong capability of casting a wide variety of magnesium steel alloys. Such as AZ91D, AM60B and AM50. The customized magnesium casting parts and components for industries and applications including automotive, food & dairy, machinery, medical, plumbing, watering, mining, petrochemical, electrical, energy, aerospace, submarine. For your magnesium casting and magnesium die casting needs, we can help you out with our best services.

What Is Magnesium?

Magnesium is the lightest structural material. The weight is about 1.8 grams per cm3. magnesium is the 8th most abundant element in the earth’s crust. It occurs naturally in Dolomite, Magnesite, Carnallite, and Chloride (sea water). Magnesium is produced from sea water, brines and magnesium-bearing minerals which offer unlimited reserves. Magnesium is 75% lighter than steel, 33% lighter than aluminum. It offers component and feature integration and provides high dimensional stability that improves fit and finishes.

Magnesium is a base material for many alloys. AZ91D is the most common magnesium alloy for die casting. It offers very well castability and toughness. It is an ideal material for lightweight, highly durable parts.

Benefits of Magnesium

  • Lightest of all structural materials
  • 75% lighter than steel
  • 33% lighter than aluminum
  • High impact resistance
  • High strength to weight ratio
  • Can be cast to net shape
  • Excellent dimensional stability/repeatability
  • Abundant material supply
  • 100% recyclable

Comparison Between Magnesium and Steel,Plastic, Aluminum

ComparisonMagnesium Advantages
Magnesium VS Steelmagnesium is 75% lighter
component consolidation/integration, significantly lower tooling costs,
high heat conductivity,
complicated thin-walled near net shape and superior dimensional stability/repeatability.
Comparison Between Magnesium and Plastic
Magnesium VS Plasticmagnesium is stronger,
with advantages such as superior stiffness,
greater energy absorbing capabilities,
higher temperature applications
large thin-walled near net shape casting.
Magnesium VS Aluminummagnesium is 33% lighter,
superior machining, large thin-walled near net shape casting
greater mechanical properties
greater corrosion resistance.

Magnesium Alloys Types

We help our customers to select alloys based on the environment in the part that will function in the performance requirements of the component.

AZ91DMost commonly used alloy for high pressure die casting.
Offers good strength to weight ratio
Very good corrosion resistance
Excellent castability.
This alloy is typically used for power-train and mechanical components where toughness is more important than deformation capability.
AM60BExcellent ductility,
Energy-absorbing properties,
Strength and castability.
Used for automotive die castings for safety components such as instrument panel structures and seat frames
AM50With a lower aluminum content than AM60,
Offers a further increase in ductility but at a slightly reduced strength
A slight reduction in castability.
It is typically used where the performance requirements demand elongation properties beyond that of AM60.

Notes:  For applications such as power-train components. Where the operating temperature is above 120 degrees C. (EX. automatic transmission housing). There is a large selection of magnesium alloys available.

Magnesium Die Casting Material Information

Mechanical PropertiesAZ91DAM60BAM50A
Ultimate Tensile Strength (Mpa)240225210
Yield Strength (Mpa)160130125
Elongation (% ub 2 in (51mm)3810
Hardness (Brinell)706560
Elastic Modulus (Gpa)454545
Physical Properties   
Density (g / cm³)1.811.81.77
Melting Range (F)815 to 1,108815 to 1,139815 to 1,238
Melting Range (C)435 to 598435 to 615435 to 620
Specific Heat (kJ/kg k)
Thermal Conductivity (W / m – k )516165
Electrical Conductivity (MS/m)6.69.1
Corrosion Rate (mg/cm²/day)

Advantages of Magnesium Die Casting

  • Lightest of all structural materials
  • Outstanding EMI and RFI shielding properties, perfect for connectors and electrical housings
  • Withstands high operating temperatures
  • Exceptional thin wall capability
  • Good environmental corrosion resistance
  • Excellent Stiffness
  • 100% recyclable
  • High conductivity, electrical, and thermal
  • High dimensional accuracy and stability

Secondary Operations of Magnesium Die Casting

  • Painting using e-coat or powder coat processes
  • Machining