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SAE-AISI H43 Steel vs. SAE-AISI 8115 Steel

Both SAE-AISI H43 steel and SAE-AISI 8115 steel are iron alloys. They have 86% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 8115 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
73
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
610

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1530
1460
Melting Onset (Solidus), °C 1480
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 30
43
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.5
Embodied Energy, MJ/kg 120
19
Embodied Water, L/kg 100
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 75
21
Strength to Weight: Bending, points 22 to 46
20
Thermal Diffusivity, mm2/s 8.3
12
Thermal Shock Resistance, points 21 to 62
19

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.13 to 0.18
Chromium (Cr), % 3.8 to 4.5
0.3 to 0.5
Iron (Fe), % 83.2 to 85.9
97.4 to 98.4
Manganese (Mn), % 0.15 to 0.4
0.7 to 0.9
Molybdenum (Mo), % 7.8 to 8.5
0.080 to 0.15
Nickel (Ni), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 1.8 to 2.2
0