SAE-AISI M41 (T11341) Molybdenum High-Speed Steel
Tool Steels
Property Overview
Density8.4g/cm³
Elastic Modulus200GPa
Tensile Strength800 to 2290MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
1.1 to 1.2%
CR
3.8 to 4.5%
NI
0 to 0.3%
MO
3.3 to 4.3%
MN
0.2 to 0.6%
SI
0.15 to 0.5%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
1.8 to 2.3%
CO
4.8 to 5.8%
W
6.3 to 7.0%
FE
73.4 to 78.9%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
800 to 2290 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
22 W/m-K
Thermal Diffusivity
6.0 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
25 to 71 points
Calculated
PREN (Pitting Resistance)
28
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
26 to 76 points
Strength to Weight: Bending
23 to 46 points
Environmental
Base Metal Price
33 % relative
Embodied Carbon
9.1 kg CO 2 /kg material
Embodied Energy
140 MJ/kg
Embodied Energy
140 MJ/kg 59 x 10 3 BTU/lb
Embodied Water
120 L/kg
Embodied Water
120 L/kg 15 gal/lb
Registered Designations & Aliases
SAE-AISI M41 (T11341) Molybdenum High-Speed SteelT11341
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