Grade Ti-8Mo-8V-2Fe-3Al Alloy

Jul 12 2013

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Applications

Introduction

Titanium alloys are developed by adding varying quantities of alloying metals to the base metal titanium. Each alloying metal helps to enhance the properties of corrosion resistance, ductility, durability, tensile strength etc.

Grade Ti-8Mo-8V-2Fe-3Al alloy is a metastable beta alloy that has very high tensile and shear strengths. It can be annealed at 675 °C (1247°F) for 1/2 h and then air cooled.

The following sections will discuss in detail about grade Ti-8Mo-8V-2Fe-3Al alloy.

Chemical Composition

The chemical composition of grade Ti-8Mo-8V-2Fe-3Al alloy is outlined in the following table.

Element Content (%)
Titanium, Ti 86
Vanadium, V 7.5 - 8.5
Iron, Fe 4-6
Aluminum, Al 0.80 - 1.5
Oxygen, O 0.25 - 0.50
Nitrogen, N ≤ 0.070
Carbon, C ≤ 0.050

Physical Properties

The physical properties of grade Ti-8Mo-8V-2Fe-3Al alloy are tabulated below.

Properties Metric Imperial
Density 4.65 g/cm3 0.168 lb/in3

Mechanical Properties

The following table shows mechanical properties of annealed grade Ti-8Mo-8V-2Fe-3Al alloy.

Properties Metric Imperial
Tensile strength 1263 MPa 183200 psi
Yield strength 1233 MPa 178800 psi
Elongation at break 15% 15%
Hardness, Vickers 330 330

Applications

Grade Ti-8Mo-8V-2Fe-3Al alloy is used in the following application areas:

  • Aerospace fasteners

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