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ACI-ASTM CA40 Steel vs. SAE-AISI H10 Steel

Both ACI-ASTM CA40 steel and SAE-AISI H10 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is SAE-AISI H10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 910
680 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
38
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.4
Embodied Energy, MJ/kg 28
48
Embodied Water, L/kg 100
71

Common Calculations

PREN (Pitting Resistance) 14
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
24 to 72
Strength to Weight: Bending, points 27
22 to 46
Thermal Diffusivity, mm2/s 6.7
10
Thermal Shock Resistance, points 33
22 to 66

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.35 to 0.45
Chromium (Cr), % 11.5 to 14
3.0 to 3.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.5 to 88.3
89.5 to 93.4
Manganese (Mn), % 0 to 1.0
0.25 to 0.7
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0.8 to 1.2
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.25 to 0.75