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Alloy Portfolio

Titanium and Titanium Alloys

Titanium

Designations Equivalent Specifications Major Elements Chemical Compositionsi“j Properties Applications
ASTM JIS O N Fe Ti Other Elements
T-2(Unalloyed Titanium) B348 Gr2
B381 GrF2
TB340…0.2 ƒ0.03 …0.25 bal - Pure titanium having excellent corrosion resistance provided by steady oxide film on the surface. The maximum feature is excellent resistance to chloride-ion corrosion with especially stable titanium oxide film on the surface. The mechanical strength of each grade is adjusted by additions of oxygen and iron, thereby appropriate grade can be chosen for various usages. Used for reverse osmotic seawater conversion equipment, seawater heat exchangers in nuclear and thermal power generation, for vessel and aircraft components, and in chemical processing,.
T-3(Unalloyed Titanium) B348 Gr3
B381 GrF3
TB480 …0.3 ƒ0.05 …0.30 bal -
T-4(Unalloyed Titanium) B348 Gr4
B381 GrF4
TB550 …0.4 ƒ0.05 …0.50 bal -
T-2 Pd(Unalloyed Titanium plus Palladium) B348 Gr7
B381 GrF7
TB340Pd …0.2 ƒ0.03 …0.25 bal Pd 0.12`0.25 Titanium with an addition of palladium for excellent resistance to chloride-ion corrosion and crevice corrosion. Used in chemical processing.
T-6Al4V(Titaium Alloy with Aluminum and Vanadium) B348 Gr5
B381 GrF5
TAB6400 …0.2 ƒ0.05 …0.40 bal Al 6.0
V 4.0
A titanium alloy most widely used. The alloy has high specific strength, excellent processability and weldability. The alloy has excellent creep-rupture and fatigue strength at temperature up to 300Ž. Used for aircraft engines, centrifugal separators, gas turbine components, steam turbine blades, connecting rods in internal combustion engine, and shafts and other components in vessel.

Shape Memory Alloy Nickel Titanium Alloy

Designations Ni Ti Properties Applications
Shape Memory Alloy 50.0 50.0 An alloy provided with shape-memory by processes of plastic forming and heat-treatment. Even if deformed by external stress, it returns to the pre-deformed shape by heating higher than transformation temperatures. Used for brassieres, cellular phone antennas, glasses frames, catheter wires and orthodontics wires.

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