L605 (Haynes^® 25)

---

Applications

Bearings, shafts, springs and surgical fixation wire.

Description

Udimet^® alloy L605 (Haynes^® alloy 25) is a Cobalt-Chromium-Tungsten solid-solution strengthened alloy with excellent mechanical strength and oxidation resistance at high temperatures.  This alloy also has good fatigue resistance and galling resistance.

Industries Supplied

Medical and Aerospace.

Nominal Composition

Cr: 19 – 21
W: 14 – 16
Ni: 9 – 11 
Fe: 3.0 max
Mn: 1 – 2 
Co: balance
Si: 0.40 max
C: 0.05 – 0.15
P: 0.04 max
S: 0.03 max

Physical Properties

Density: 0.335 lb/in³, (9.27 g/cm³)

Modulus of Elasticity (E): 
At 70°F (20°C): 32.6 x 103 ksi (225 GPa)

Coefficient of Expansion:
7.6 µin/in.-°F (70°F to 600°F)
13.6 µm/m-°C (20°C to 300°C)

Electrical Resistivity: 34.9 µΩ.in, (88.6 µΩ.cm)

Thermal Conductivity: 65.0 Btu-in/ft²hr-°F, (9.4 W/m-K)

Applicable Specifications

Wire & Bar: AMS 5759, AMS 5796, ASTM F90, ISO 5832-5, NACE MRO175 (ISO 15156-3).

Typical Mechanical Properties – Spring Applications

• Annealed
  • Heat Treatment: 2155°F (1180°C)
  • Tensile Strength: 130 – 180 ksi; (896 – 1240 MPa)

  • Suggested Operating Conditions: -330°F to 1200°F (-200°C to 650°C)

• Spring Temper
  • Tensile Strength: 220 – 280 ksi; (1517 – 1930 MPa)

  • Suggested Operating Conditions: -300°F to 1200°F (-200°C to 650°C​)

---

Udimet^® is a registered trademark of the Special Metals Corporation group of companies, Haynes^® is a registered trademark of Haynes International, Inc.

For further information Contact:

Email: wireinfo@elgiloy.com
Phone: 1 847 695 1900 
Elgiloy Specialty Metals – Wire Products
356 N.Cross Street
Sycamore, IL 60178 USA