+49 4174 66 94-0


Cobalt Alloy L-605 round bars of various diameters

Cobalt Alloy L-605 with excellent high temperature strength, oxidation resistance, and good sulfidation resistance.


ALLOY L-605 | 2.4964 - Data sheet

UNS R30605 | AMS 5759 | DMD 0415-22

Alloy L-605 is a cobalt-based alloy with additions of chromium, tungsten, and nickel for excellent high temperature strength and oxidation resistance as well as good sulfidation resistance. Alloy L-605 can be used in oxidizing high temperature environments at operating temperatures up to 1093°C. It also has good wear and abrasion resistance. This combination of properties makes Alloy L-605 ideal for use in aviation and aerospace applications as well as in land-based gas turbines.

Product forms for ALLOY L-605 | 2.4964

Round bars
Dimensions from 16,00 mm to 31,75 mm Diameter available in stock
  • 16,00 mm Ø
  • 20,00 mm Ø
  • 25,40 mm Ø
  • 31,75 mm Ø

Areas of application for ALLOY L-605 | 2.4964

Gas turbine rings and blades, combustor components, ball bearings, and industrial furnace equipment.


Characteristics ALLOY L-605 | 2.4964

Chemical composition - limits in %

Co Rest
Mn 1,0-1,2
Ni 9,0-11,0
Si 0,40 max
Cr 19,0-21,0
C 0,05-0,15
W 14,0-16,0
S 0,03 max
Fe 3,0 max
P 0,04 max

Physical constants and thermal properties

Density 9,27 g/cm³
Melting point 1330-1410 °C
Thermal conductivity 9,4 W/m · °C

Typical mechanical properties (at room temperature)

Yield strength 460 MPa
Tensile strength 1000 MPa
Elongation 50%

Thermal expansion properties

Temperature range (°C) Mid-linear coefficient (µm/m · °C)
21-93 13

All information is subject to change without notice. The properties correspond to the material in the heading. They may vary for other specifications. Please contact us for more details.


Material cutting:

S+D METALS is more than just a stockist. Save time and a processing step by letting S+D METALS cut your coils, sheets, plates, and round bars to size according to your specifications in S+D METALS own machine park or by one of our capable partners. All this within the shortest time possible.

More details can be found here

Your contact

Julius Mönkeberg

Julius Mönkeberg
Product Manager Nickel and Cobalt Alloys
+49 4174 66 94-118

Jan Gehrke

Jan Gehrke
Order processing, sales assistant nickel and cobalt alloys
+49 4174 66 94-213