SAE-AISI M36 (T11336) Cobalt High-Speed Steel
Tool Steels
Property Overview
Density8.4g/cm³
Elastic Modulus200GPa
Tensile Strength810 to 2190MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0.8 to 0.9%
CR
3.8 to 4.5%
NI
0 to 0.3%
MO
4.6 to 5.5%
MN
0.15 to 0.4%
SI
0.2 to 0.45%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
1.8 to 2.3%
CO
7.8 to 8.8%
W
5.5 to 6.5%
FE
70.1 to 75.5%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
78 GPa
Tensile Strength: Ultimate (UTS)
810 to 2190 MPa
Physical
Density
8.4 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Melting Completion (Liquidus)
1600 °C
Melting Onset (Solidus)
1550 °C
Specific Heat Capacity
440 J/kg-K
Thermal Conductivity
19 W/m-K
Thermal Diffusivity
5.1 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
25 to 68 points
Calculated
PREN (Pitting Resistance)
31
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
27 to 72 points
Strength to Weight: Bending
23 to 44 points
Environmental
Base Metal Price
38 % relative
Embodied Carbon
9.5 kg CO 2 /kg material
Embodied Energy
140 MJ/kg
Embodied Energy
140 MJ/kg 61 x 10 3 BTU/lb
Embodied Water
140 L/kg
Embodied Water
140 L/kg 17 gal/lb
Registered Designations & Aliases
SAE-AISI M36 (T11336) Cobalt High-Speed SteelT11336
Standards
ASTM A600 ASTM A600: Standard Specification for Tool Steel High Speed
ASTM A600 ASTM A600: Standard Specification for Tool Steel High Speed Tool Steels, 5th ed., George Roberts et al., 1998 Tool Steels: Properties and Performance, Rafael A. Mesquita (editor), 2016