Magnesium AS41B-F Die Cast Alloy (UNS M10412)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications

Introduction

Magnesium AS41B-F die cast alloy has excellent saltwater corrosion resistance coupled with creep resistance that is superior to magnesium grades AM60A, AZ91A, AZ91B, and AZ91D. This alloy also possesses tensile strength, yield strength, and elongation.

The following sections will discuss in detail about magnesium AS41B-F die cast alloy.

Chemical Composition

The chemical composition of magnesium AS41B-F die cast alloy is outlined in the following table.

Element Content (%)
Magnesium, Mg 94.6
Aluminum, Al 3.5 - 5
Silicon, Si 0.50 - 1.5
Manganese, Mn ≥ 0.35
Zinc, Zn ≤ 0.12
Copper, Cu ≤ 0.020
Iron, Fe ≤ 0.0035
Nickel, Ni ≤ 0.0020
Other, per element ≤ 0.20

Physical Properties

The physical properties of magnesium AS41B-F die cast alloy are tabulated below.

Properties Metric Imperial
Density 1.776 g/cm3 0.06416 lb/in3
Melting point 570 - 615 °C 1060 - 1140 °F

Mechanical Properties

The following table shows mechanical properties of magnesium AS41B-F die cast alloy.

Properties Metric Imperial
Tensile strength 214 MPa 31000 psi
Yield strength 138 MPa 20000 psi
Poisson’s ratio 0.35 0.35
Modulus of elasticity 45 GPa 6530 ksi
Elongation at break 6-15% 6-15%
Hardness, Brinell 60 60

Thermal Properties

The thermal properties of magnesium AS41B-F die cast alloy are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 26.1 µm/m°C 14.5 µin/in°F
Thermal conductivity 68 W/mK 472 BTU in/hr.ft².°F

Applications

Magnesium AS41B-F die cast alloy is primarily used in automotive structural die casting parts in operating temperatures of up to 177°C (350°F).

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