Ti 3Al-8V-6Cr-4Mo-4Zr (Grade 19 βc | UNS R58640)

Material Overview

Titanium grade 19 Ti-38644 is a high-performance alloy used extensively in aerospace components, commercial applications, and high-strength components. It has excellent corrosion resistance and high strength-to-weight ratio, making it perfect for applications requiring both attributes.

The alloy consists primarily of titanium, with small additions of molybdenum, nickel, and chromium. This combination offers exceptional weldability and stability at elevated temperatures. Additionally, it exhibits superior resistance to pitting, crevice corrosion, and stress corrosion cracking. Titanium grade 19 Ti-38644 is an ideal choice for critical applications in hostile environments where strength, durability, and reliability are essential.

Availability

Technical Data

Chemical Composition (%)

Aluminum (Al) 3.0 - 4.0
Vanadium (V) 7.5 - 8.5
(Cr) 5.5 - 6.5
(Mo) 3.5 - 4.5
(Zr) 3.5 - 4.5
Nitrogen (N) <0.03
Carbon (C) <0.05
Hydrogen (H) <0.02
Iron (Fe) <0.35
Oxygen (O) <0.12
Other, Each <0.10
Other, Total <0.40

Mechanical Properties

Tensile Strength >1248 MPa
Yield Strength >1152 MPa
Elongation(%) >10
Reduction(%) >20
Elastic modulus 103 GPa

Physical Properties

Density 4.82g cm³
Beta Transus 732±14°C
Melting Point 1554~1649°C