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SAE-AISI H14 Steel vs. SAE-AISI M43 Steel

Both SAE-AISI H14 steel and SAE-AISI M43 steel are iron alloys. They have 81% 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 M43 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
810 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1530
1550
Melting Onset (Solidus), °C 1490
1500
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 35
19
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
33
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 2.7
8.5
Embodied Energy, MJ/kg 39
120
Embodied Water, L/kg 73
140

Common Calculations

PREN (Pitting Resistance) 13
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 69
27 to 77
Strength to Weight: Bending, points 22 to 44
24 to 47
Thermal Diffusivity, mm2/s 9.3
5.3
Thermal Shock Resistance, points 24 to 68
25 to 71

Alloy Composition

Carbon (C), % 0.35 to 0.45
1.2 to 1.3
Chromium (Cr), % 4.8 to 5.5
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 86.5 to 89.9
70.8 to 76
Manganese (Mn), % 0.2 to 0.5
0.2 to 0.4
Molybdenum (Mo), % 0
7.5 to 8.5
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
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 4.0 to 5.3
2.3 to 3.0
Vanadium (V), % 0
1.5 to 1.8

Comparable Variants