Alloy L605 Cobalt Sheet, Coil & Bar - AMS 5537, 5759

Udimet Alloy® L605 is a cobalt-chromium-tungston-nickel alloy.  It has good formability, high strength to 1500°F (816°C), and good oxidation resistance to 2000°F (1093°C). The material also has good sulfidation resistance and resistance to wear and galling. Alloy L605 is used in applications requiring moderate strength and good oxidation resistance at high temperatures.  L605 is non-magnetic.  It has excellent resistance to the hot corrosive atmospheres in jet engine applications. Resistance to oxidation is good for intermittent service up to 1600°F (871°C) and continuous service up to 2000°F (1093°C). This alloy is especially resistant to carburizing and sulfidizing atmospheres up to 1600ºF (871°C).  The high chromium content makes it resistant to corrosion in a wide range of environments such as wet chlorine, hydrochloric acid and nitric acid.


L605 Inventory Size Ranges

Sheet & Coil

0.029" - 0.065"

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Bar

0.201" - 4.000"

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Standard Inventory Specifications

  • UNS R30605
  • AMS 5537
  • AMS 5759
  • B50TF26

Other industry standards we comply with:

  • PWA-LCS
  • S1000 / S-SPEC-1
  • GE Aviation S-SPEC-35 AeDMS S-400
  • RR SABRe Edition 2
  • DFARS Compliant

Common Trade Names

  • HAYNES® 25, L-605 Alloy
  • Udimet Alloy L605 (® Special Metals)
  • ATI L-605 (™ Allegheny Technologies)

Common Applications of L605

  • Aircraft engine combustor liners
  • Jet engine components
  • Land based gas turbine combustor liners
  • Industrial furnace lines
Alloy L605 Chemical Composition
Element Percent by Weight
Co Cobalt Balance
Cr Chromium 2000.00%
W Tungsten 1500.00%
Ni Nickel 1000%
Fe Iron 3.00 max
Mn Manganese 150.00%
Si Silicon 0.40 max
C Carbon 0.1
S Sulfur 0.030 max
P Phosphorous 0.040 max

Alloy L605 Physical Properties

   
Density  0.330 lb/in³   9.14 g/cm³
Melting Range  2375-2425 °F   1300-1330 °C
Specific Heat  0.097 at  70 °F, Bru/lb °F   405 at 21 °C,  J/kg °C
Permeability  1.0007 at 200 oersted
Coefficient of Expansion  6.6 0-200 °F, 10¯6 in/in °F
Thermal conductivity  84 Btu in/ft² h °F   W/wm °C
Electrical Resistivity  613 ohm circ mil/ft   102.0 microhm-cm

 

Mechanical Properties and Yield Strength of Alloy L605

 

 

Ultimate Tensile

Yield Strength (0.2% OS)

Elong. in 4D %

Min

125 Ksi

45.0 KSi

30

Min

862 Mpa

310 MPa

 

 

Temperature   Rupture strength  
Degrees F Degrees C ksi MPa
1200 649 39 270
1300 704 32 220
1400 760 24 165
1500 816 17 120
1600 871 10 72
1700 927 6 44
1800 982 4 25
 

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The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.