Grade Ti-15Mo-5Zr-3Al Alloy

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications

Introduction

Titanium alloys are generally durable due to their excellent corrosion resistance and strength. Grade Ti-15Mo-5Zr-3Al alloy is a metastable beta alloy. It has excellent corrosion resistance, high strength, and good cold formability.

The following sections will discuss in detail about grade Ti-15Mo-5Zr-3Al alloy.

Chemical Composition

The chemical composition of grade Ti-15Mo-5Zr-3Al alloy is outlined in the following table.

Element Content (%)
Titanium, Ti 77
Molybdenum, Mo 15
Zirconium, Zr 5
Aluminum, Al 3

Physical Properties

The physical properties of grade Ti-15Mo-5Zr-3Al alloy are tabulated below.

Properties Metric Imperial
Density 5.01 g/cm3 0.181 lb/in3

Mechanical Properties

The following table shows mechanical properties of grade Ti-15Mo-5Zr-3Al alloy.

Properties Metric Imperial
Tensile strength 980 MPa 142000 psi
Poisson’s ratio 0.33 0.33
Elastic modulus 100 GPa 14500 ksi
Shear modulus 43.0 GPa 6240 ksi
Elongation at break 22% 22%
Hardness, Vickers 275 275

Thermal Properties

The thermal properties of grade Ti-15Mo-5Zr-3Al are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient (@20°C/68°F) 8.50 µm/m°C 4.72 µin/in°F
Thermal conductivity 7.50 W/mK 52 BTU in/hr.ft².°F

Applications

Grade Ti-15Mo-5Zr-3Al alloy is used in the following application areas:

  • Erosion shield for power plant turbine blades
  • Sour gas well plant components.

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