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SAE-AISI H43 Steel vs. SAE-AISI 1040 Steel

Both SAE-AISI H43 steel and SAE-AISI 1040 steel are iron alloys. They have 85% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, 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 1040 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
570 to 640

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
51
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.4
Embodied Energy, MJ/kg 120
18
Embodied Water, L/kg 100
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 75
20 to 23
Strength to Weight: Bending, points 22 to 46
19 to 21
Thermal Diffusivity, mm2/s 8.3
14
Thermal Shock Resistance, points 21 to 62
18 to 20

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.37 to 0.44
Chromium (Cr), % 3.8 to 4.5
0
Iron (Fe), % 83.2 to 85.9
98.6 to 99.03
Manganese (Mn), % 0.15 to 0.4
0.6 to 0.9
Molybdenum (Mo), % 7.8 to 8.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 1.8 to 2.2
0