Magnesium M1A Alloy (UNS M15100)

Jul 18 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties

Introduction

Magnesium is a highly versatile metal which is non-toxic, and has excellent machining qualities. It exhibits a capacity to dampen and absorb vibration and electromagnetic waves. Magnesium alloys are nonferrous metals with low density, good ductility, moderate strength and good corrosion resistance. Magnesium M1A alloy is available in extrusion, forging and sheet forms. The strength of M1A alloy is relatively low in any form.

The following datasheet gives an overview of magnesium M1A alloy.

Chemical Composition

The following table shows the chemical composition of magnesium M1A alloy.

Element Content (%)
Magnesium, Mg 99
Manganese, Mn ≥ 1.2
Calcium, Ca ≤ 0.30
Silicon, Si ≤ 0.10
Copper, Cu ≤ 0.050
Nickel, Ni ≤ 0.010

Physical Properties

The physical properties of magnesium M1A alloy are given in the following table.

Properties Metric Imperial
Density 1.77 g/cm³ 0.0639 lb/in³

Mechanical Properties

The mechanical properties of magnesium M1A alloy are listed in the following table.

Properties Metric Imperial
Tensile strength 240 MPa 34800 psi
Yield strength (@ strain 0.2%) 180 MPa 26100 psi
Compressive yield strength (at 0.2% offset) 125 MPa 18100 psi
Ultimate bearing strength 395 MPa 57300 psi
Bearing yield strength 270 MPa 39200 psi
Shear strength 115 MPa 16700 psi
Shear modulus 17 GPa 2470 ksi
Elastic modulus 45 GPa 6530 ksi
Poisson's ratio 0.35 0.35
Elongation at break (in 50 mm) 7% 7%
Brinell hardness (500 kg load, 10 mm ball) 54 54
Knoop hardness (estimated from Brinell) 69 69

Thermal Properties

The following table outlines the thermal properties of magnesium M1A alloy.

Properties Metric Imperial
Thermal expansion co-efficient (@ 0-100°C/32-212°F) 26 µm/m°C 14.4 µin/in°F


 

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