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Aluminum		5.5 - 6.5
Carbon		0.1 max
Hydrogen 2		0.15 max
Iron		0.25 max
Molybdenum		1.8 - 2.2
Nitrogen		0.5 max
Oxygen 2		0.15 max
Silicon		0.06 - 0.1
Tin		1.8 - 2.2
Titanium		Balance
Zirconium		3.6 - 4.4

Principal Design Features		This near alpha alloy is designed primarily for high temperature applications (up to 538 C). It combines excellent strength and corrosion resistance with relatively good weld and fabricability. Beta Transus (F +/- 25) 1820.

Applications		Most commonly found in gas turbine compressor components, such as blades, discs and impellers. It is also used for sheet metal components in afterburners and "hot" airframe sections.

Machinability		As a family, titanium and its alloys have developed a mystique as a nightmare to machine. This is simply not the case. Experienced operators have compared its characteristics to those found in 316 stainless steel. Recommended practice includes high coolant flow(to offset the material's low thermal conductivity), slow speeds and relatively high feed rates. Tooling should be tungsten carbide designations C1-C4 or cobalt type high speed tools.

Forming		This alloy can be hot or cold formed and will exhibit characteristics equivalent to those found in a 1/8 to 1/4 hard austenitic stainless steel.

Welding		Rated as "fair" in terms of weldability.

Heat Treatment		Beta minus 14 C(25 F).

Forging		Rough forge at 1038-1066 C(1929-1980 F), finish at 954-982 C(1770-1825 F).

Hot Working		Hot forming will reduce both the springback and required forming forces, and will increase the overall ductility of the material.

Cold Working		The cold working characteristics of this alloy are similar to those found in austenitic stainless steels. In multiple forming operations, intermediate stress relieving is recommended to offset the alloy's tendency to work harden. Post-work annealing is recommended to reattain maximum performance characteristics.

Annealing		For duplex annealing, hold at 900 C(1670 F) for 1/2 hour, air cool to 788 C(1465 F) and air cool. For beta anneal, hold at 1024 C(1900 F) for 1/2 hour, air cool to 593 C(1100 F) for 8 hours and air cool.

Aging		Hold at 538-593 C(1000-1100 F) for 8 hours, air cool.

Other Physical Props		Beta Transus (F +/- 25) 1820

Physical Data : [top]

Density (lb / cu. in.)	0.164
Specific Gravity	4.54
Electrical Resistivity (microhm-cm (at 68 Deg F))	171
Melting Point (Deg F)	3100
Modulus of Elasticity Tension	16.5
Reduction of Area	25

Form		Sheet
Condition		Test Specimen Annealed
Temper		70
Tensile Strength		130
Yield Strength		120
Elongation		10
Reduction of Area		25
Form		Sheet
Condition		Test Specimen Annealed
Temper		800
Form		Sheet
Condition		Test Specimen Annealed
Temper		1000