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ACI-ASTM CN3M Steel vs. SAE-AISI 1049 Steel

Both ACI-ASTM CN3M steel and SAE-AISI 1049 steel are iron alloys. They have 48% 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 CN3M steel and the bottom bar is SAE-AISI 1049 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
11 to 17
Fatigue Strength, MPa 150
250 to 400
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 500
680 to 750
Tensile Strength: Yield (Proof), MPa 190
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.9
1.4
Embodied Energy, MJ/kg 80
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
75 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 89
370 to 1090
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24 to 27
Strength to Weight: Bending, points 17
22 to 23
Thermal Diffusivity, mm2/s 3.4
14
Thermal Shock Resistance, points 11
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0.46 to 0.53
Chromium (Cr), % 20 to 22
0
Iron (Fe), % 42.4 to 52.5
98.5 to 98.9
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050