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ACI-ASTM CN3MN Steel vs. ACI-ASTM CA28MWV Steel

Both ACI-ASTM CN3MN steel and ACI-ASTM CA28MWV steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 61% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
330
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 39
11
Fatigue Strength, MPa 250
470
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 620
1080
Tensile Strength: Yield (Proof), MPa 300
870

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1100
740
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
11
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.2
3.1
Embodied Energy, MJ/kg 84
44
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 46
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
38
Strength to Weight: Bending, points 20
30
Thermal Diffusivity, mm2/s 3.4
6.6
Thermal Shock Resistance, points 14
40

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.28
Chromium (Cr), % 20 to 22
11 to 12.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 41.4 to 50.3
81.4 to 85.8
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0.9 to 1.3
Nickel (Ni), % 23.5 to 25.5
0.5 to 1.0
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3