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ACI-ASTM CA6N Steel vs. SAE-AISI 1146 Steel

Both ACI-ASTM CA6N steel and SAE-AISI 1146 steel are iron alloys. They have 81% 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 CA6N steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
13 to 17
Fatigue Strength, MPa 640
240 to 400
Poisson's Ratio 0.28
0.29
Reduction in Area, % 57
40 to 45
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 1080
670 to 730
Tensile Strength: Yield (Proof), MPa 1060
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
51
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 35
18
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
340 to 1050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
24 to 26
Strength to Weight: Bending, points 30
22 to 23
Thermal Diffusivity, mm2/s 6.1
14
Thermal Shock Resistance, points 40
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.060
0.42 to 0.49
Chromium (Cr), % 10.5 to 12.5
0
Iron (Fe), % 77.9 to 83.5
98.3 to 98.8
Manganese (Mn), % 0 to 0.5
0.7 to 1.0
Nickel (Ni), % 6.0 to 8.0
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0.080 to 0.13