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ACI-ASTM CN3M Steel vs. SAE-AISI 1025 Steel

Both ACI-ASTM CN3M steel and SAE-AISI 1025 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 1025 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17 to 28
Fatigue Strength, MPa 150
190 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 500
450 to 500
Tensile Strength: Yield (Proof), MPa 190
250 to 420

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
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.9
1.4
Embodied Energy, MJ/kg 80
18
Embodied Water, L/kg 200
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 89
170 to 470
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
16 to 18
Strength to Weight: Bending, points 17
17 to 18
Thermal Diffusivity, mm2/s 3.4
14
Thermal Shock Resistance, points 11
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0.22 to 0.28
Chromium (Cr), % 20 to 22
0
Iron (Fe), % 42.4 to 52.5
99.03 to 99.48
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
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