One of Hottest for Titanium alloy 6Al-2Sn-4Zr-2Mo UNS R54620 in Kyrgyzstan

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HY Titanium 6-2-4-2 Material grades and equivalents

6Al-2Sn-4Zr-2Mo, 6-2-4-2 Titanium, 6-2-4-2, UNS R54620

Introduction

A near-alpha alloy, primarily used for high strength and toughness, with good creep resistance up to 1000°F. Forging and machining characteristics similar to those of Ti 6Al-4V. Applications include compressor components, hot airframe skin, and engine afterburner structures. The weld ability of Ti 6-2-4-2 is fair, using AMS 4952 weld wire. Several different treatments are available.

Chemistry Composition

Features

Machinability similar to austenitic stainless steelsEasily welded if proper precautions are taken to prevent oxygen, nitrogen and hydrogen contaminationsLong term stability for temperatures up to 800°F

Applications

Compressor discs, bladesAirframe structure, skinEngine afterburner componentsHush kits

Physical Properties

Density: 0.160 lb/in3

Beta Transus: 1825±25°F
Thermal Conductivity: 4.00 Btu hr/ft2 hr°F
Coefficient of Thermal Expansion: 32-212°F 4.3 x10-6 in/in°F
Modulus of Elasticity: 16.5×106 psi

Mechanical Properties

Minimum Tensile Properties, AMS 4919, Duplex Annealed