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SAE-AISI 1137 Steel vs. ACI-ASTM CA40F Steel

Both SAE-AISI 1137 steel and ACI-ASTM CA40F 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 (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
13
Fatigue Strength, MPa 250 to 400
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 700 to 760
770
Tensile Strength: Yield (Proof), MPa 370 to 650
550

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
750
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 48
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
94
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
28
Strength to Weight: Bending, points 22 to 24
24
Thermal Diffusivity, mm2/s 14
7.2
Thermal Shock Resistance, points 21 to 23
28

Alloy Composition

Carbon (C), % 0.32 to 0.39
0.2 to 0.4
Chromium (Cr), % 0
11.5 to 14
Iron (Fe), % 97.8 to 98.3
81.6 to 88.3
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0.080 to 0.13
0.2 to 0.4