Hardened M34 Tool Steel
Tool Steels
Property Overview
Density8.2g/cm³
Elastic Modulus200GPa
Tensile Strength2170MPa
Yield StrengthUnknown
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0.85 to 0.92%
CR
3.5 to 4.0%
NI
0 to 0.3%
MO
7.8 to 9.2%
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
1.9 to 2.3%
CO
7.8 to 8.8%
W
1.4 to 2.1%
FE
71.3 to 76.5%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
2170 MPa
Hardness
Rockwell C Hardness
67
Physical
Density
8.2 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1540 °C
Melting Onset (Solidus)
1500 °C
Specific Heat Capacity
450 J/kg-K
Thermal Conductivity
24 W/m-K
Thermal Diffusivity
6.7 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
67 points
Calculated
PREN (Pitting Resistance)
35
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
74 points
Strength to Weight: Bending
46 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
9.5 kg CO 2 /kg material
Embodied Energy
140 MJ/kg
Embodied Energy
140 MJ/kg 59 x 10 3 BTU/lb
Embodied Water
150 L/kg
Embodied Water
150 L/kg 18 gal/lb
Registered Designations & Aliases
Hardened M34 Tool Steel
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