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ACI-ASTM CN3MN Steel vs. ASTM A182 Grade F122

Both ACI-ASTM CN3MN steel and ASTM A182 grade F122 are iron alloys. They have 58% 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 CN3MN steel and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 39
23
Fatigue Strength, MPa 250
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 620
710
Tensile Strength: Yield (Proof), MPa 300
450

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1100
600
Melting Completion (Liquidus), °C 1460
1490
Melting Onset (Solidus), °C 1410
1440
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
24
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
12
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 6.2
3.0
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
140
Resilience: Unit (Modulus of Resilience), kJ/m3 210
520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.4
6.4
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0.070 to 0.14
Chromium (Cr), % 20 to 22
10 to 11.5
Copper (Cu), % 0 to 0.75
0.3 to 1.7
Iron (Fe), % 41.4 to 50.3
81.3 to 87.7
Manganese (Mn), % 0 to 2.0
0 to 0.7
Molybdenum (Mo), % 6.0 to 7.0
0.25 to 0.6
Nickel (Ni), % 23.5 to 25.5
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0.18 to 0.26
0.040 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010