Annealed M1 Tool Steel
Tool Steels
Property Overview
Density8.1g/cm³
Elastic Modulus200GPa
Tensile Strength730MPa
Yield StrengthUnknown
Brinell Hardness220HB
Maximum Service TemperatureUnknown
Chemical Composition
C
0.78 to 0.88%
CR
3.5 to 4.0%
NI
0 to 0.3%
MO
8.2 to 9.2%
MN
0.15 to 0.4%
SI
0.2 to 0.5%
P
0 to 0.030%
S
0 to 0.030%
CU
0 to 0.25%
V
1.0 to 1.4%
W
1.4 to 2.1%
FE
81 to 84.8%
Mechanical
Elastic (Young's, Tensile) Modulus
200 GPa
Poisson's Ratio
0.29
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
730 MPa
Hardness
Brinell Hardness
220
Rockwell B Hardness
99
Physical
Density
8.1 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1560 °C
Melting Onset (Solidus)
1510 °C
Specific Heat Capacity
450 J/kg-K
Thermal Conductivity
29 W/m-K
Thermal Diffusivity
8.0 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
23 points
Calculated
PREN (Pitting Resistance)
35
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
22 points
Environmental
Base Metal Price
18 % relative
Embodied Carbon
7.0 kg CO 2 /kg material
Embodied Energy
99 MJ/kg
Embodied Energy
99 MJ/kg 43 x 10 3 BTU/lb
Embodied Water
98 L/kg
Embodied Water
98 L/kg 12 gal/lb
Registered Designations & Aliases
Annealed M1 Tool Steel
Standards
ASTM A600 ASTM A600: Standard Specification for Tool Steel High Speed
SAE J437 SAE J437: Selection and Heat Treatment of Tool and Die Steels
SAE J437 SAE J437: Selection and Heat Treatment of Tool and Die Steels 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