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ACI-ASTM CA15M Steel vs. SAE-AISI 1146 Steel

Both ACI-ASTM CA15M steel and SAE-AISI 1146 steel are iron alloys. They have 86% of their average alloy composition in common. There are 31 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 CA15M steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
13 to 17
Fatigue Strength, MPa 330
240 to 400
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
40 to 45
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 690
670 to 730
Tensile Strength: Yield (Proof), MPa 510
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 29
18
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 670
340 to 1050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
24 to 26
Strength to Weight: Bending, points 22
22 to 23
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 25
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.15
0.42 to 0.49
Chromium (Cr), % 11.5 to 14
0
Iron (Fe), % 82.1 to 88.4
98.3 to 98.8
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.65
0
Sulfur (S), % 0 to 0.040
0.080 to 0.13