Principal Design Features
This non-heat treatable, alpha alloy combines good weldability with stability and excellent strength from cryogenic through elevated temperatures. It is available at the mill level in sheet, strip, plate, bar, billet, extrusions and wire. Beta Transus (F +/- 25) 1900.
Primarily employed in aircraft engine and airframe applications.
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.
May be hot or cold formed using hydropress, power brake, stretch or drop hammer methods. Similar in characteristics to 300 series stainless steels.
Rated as “good” in terms of weldability.
This alloy is not hardenable by heat treatment.
Rough work at 1010-1038 C(1850-1900 F) and finish at 954-1010 C(1750-1850 F).
Hot forming will reduce both the springback and required forming forces, and will increase the overall ductility of the material.
The cold work characteristics of this material is similar to that of a moderately tempered austenitic stainless steel. In multiple cold forming operations, intermediate stress relief is recommended to prevent tearing or other material damage. Post-work an
For full anneal, heat to 718-843 C(1325-1550 F) 4 hours, air cool. For intermediate stress relieving, heat to 538-650 C(1000-1200 F) for 1 hour, air cool.
Other Physical Properties
Beta Transus (F +/- 25) 1900
Specific Heat: 0.125
Electrical Resistivity: 157
Melting Point: 2910
Thermal Conductivity: 4.5
Reduction Of Area: 25
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