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SAE-AISI H43 Steel vs. SAE-AISI H12 Steel

Both SAE-AISI H43 steel and SAE-AISI H12 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 H43 steel and the bottom bar is SAE-AISI H12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
690 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1530
1480
Melting Onset (Solidus), °C 1480
1440
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 30
36
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
9.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 8.2
2.9
Embodied Energy, MJ/kg 120
41
Embodied Water, L/kg 100
76

Common Calculations

PREN (Pitting Resistance) 31
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 75
24 to 65
Strength to Weight: Bending, points 22 to 46
22 to 42
Thermal Diffusivity, mm2/s 8.3
9.8
Thermal Shock Resistance, points 21 to 62
22 to 60

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.3 to 0.4
Chromium (Cr), % 3.8 to 4.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 83.2 to 85.9
87.8 to 91.7
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.5
Molybdenum (Mo), % 7.8 to 8.5
1.3 to 1.8
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.0 to 1.7
Vanadium (V), % 1.8 to 2.2
0 to 0.5

Comparable Variants