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SAE-AISI H14 Steel vs. SAE-AISI M2 Steel

Both SAE-AISI H14 steel and SAE-AISI M2 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H14 steel and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 710 to 2030
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1530
1610
Melting Onset (Solidus), °C 1490
1570
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 35
22
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 15
24
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 2.7
8.8
Embodied Energy, MJ/kg 39
130
Embodied Water, L/kg 73
98

Common Calculations

PREN (Pitting Resistance) 13
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 24 to 69
25 to 71
Strength to Weight: Bending, points 22 to 44
22 to 44
Thermal Diffusivity, mm2/s 9.3
5.9
Thermal Shock Resistance, points 24 to 68
27 to 76

Alloy Composition

Carbon (C), % 0.35 to 0.45
0.78 to 1.1
Chromium (Cr), % 4.8 to 5.5
3.8 to 4.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 86.5 to 89.9
78.5 to 83.4
Manganese (Mn), % 0.2 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 4.0 to 5.3
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2

Comparable Variants