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ACI-ASTM CA40 Steel vs. SAE-AISI 9310 Steel

Both ACI-ASTM CA40 steel and SAE-AISI 9310 steel are iron alloys. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
17 to 19
Fatigue Strength, MPa 460
300 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 910
820 to 910
Tensile Strength: Yield (Proof), MPa 860
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
48
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
24
Embodied Water, L/kg 100
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
540 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
29 to 32
Strength to Weight: Bending, points 27
25 to 27
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 33
24 to 27

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.080 to 0.13
Chromium (Cr), % 11.5 to 14
1.0 to 1.4
Iron (Fe), % 81.5 to 88.3
93.8 to 95.2
Manganese (Mn), % 0 to 1.0
0.45 to 0.65
Molybdenum (Mo), % 0 to 0.5
0.080 to 0.15
Nickel (Ni), % 0 to 1.0
3.0 to 3.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0.2 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.012