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Rulon Bearings
TIMET TIMETAL® 230 Titanium Alloy (Ti-2.5Cu); STA
Categories: Metal; Nonferrous Metal; Titanium Alloy; Alpha/Near Alpha Titanium Alloy

Material Notes: Cold Formable Medium-Strength Alloy

Features: This binary, age hardening alloy combines the easy formability and weldability of commercially pure titanium with improved mechanical properties, particularly at temperatures up to 350°C. It is used in the annealed condition as sheet, forgings, and extrusions for fabricating components such as bypass ducts of gas-turbine engines. Its used spread to the airframe industry, following the development of an ageing treatment which raises room-temperature tensile properties by about 25%, and nearly doubles the elevated temperature properties. Such a material is particularly attractive since it can be formed in the soft condition, thus lowering fabrication costs. It is nonmagnetic.

Typical heat treatment for this alloy: Anneal at 790°C for 1 hour and air cool. Solution heat treatment at 805°C for 1 hour with a rapid air cool. Aging heat treatment at 400°C for 8-24 hours with an air cool and then for 8 hours at 475°C with air cool.

Data provided by TIMET.

Available Properties
  • Density, Typical
  • Tensile Strength, Ultimate
  • Tensile Strength, Yield
  • Elongation at Break
  • Reduction of Area
  • Creep Strength, 0.1% total plastic strain
  • Creep Strength, 0.1% total plastic strain
  • Creep Strength, 0.1% total plastic strain
  • Modulus of Elasticity, Typical
  • Fatigue Strength, Rod, notched, Kt = 3.3, direct stress
  • Fatigue Strength, Rod, rotating bend (UTS = 791 Mpa)
  • Fatigue Strength, rod, smooth, direct stress (UTS = 791 MPa)
  • Fatigue Strength, Sheet; Reverse Bend (UTS = 772 MPa)
  • Fatigue Strength, Sheet; Direct Stress (0-570 MPa); (UTS = 761 MPa)
  • Bend Radius, Minimum
  • Electrical Resistivity
  • CTE, linear
  • Thermal Conductivity
  • Beta Transus
  • Carbon, C
  • Copper, Cu
  • Hydrogen, H
  • Iron, Fe
  • Nitrogen, N
  • Other, each
  • Other, total
  • Oxygen, O
  • Titanium, Ti, Calculated as remainder
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Ensinger PEI
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