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ACI-ASTM CA40 Steel vs. SAE-AISI 50B60 Steel

Both ACI-ASTM CA40 steel and SAE-AISI 50B60 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
12 to 20
Fatigue Strength, MPa 460
240 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 910
610 to 630
Tensile Strength: Yield (Proof), MPa 860
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
45
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 100
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
330 to 750
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
22 to 23
Strength to Weight: Bending, points 27
20 to 21
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 33
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.2 to 0.4
0.56 to 0.64
Chromium (Cr), % 11.5 to 14
0.4 to 0.6
Iron (Fe), % 81.5 to 88.3
97.3 to 98.1
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040