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ACI-ASTM CN3MN Steel vs. SAE-AISI H14 Steel

Both ACI-ASTM CN3MN steel and SAE-AISI H14 steel are iron alloys. They have 52% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is SAE-AISI H14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 620
710 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1460
1530
Melting Onset (Solidus), °C 1410
1490
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 13
35
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 33
15
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 6.2
2.7
Embodied Energy, MJ/kg 84
39
Embodied Water, L/kg 200
73

Common Calculations

PREN (Pitting Resistance) 46
13
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
24 to 69
Strength to Weight: Bending, points 20
22 to 44
Thermal Diffusivity, mm2/s 3.4
9.3
Thermal Shock Resistance, points 14
24 to 68

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.45
Chromium (Cr), % 20 to 22
4.8 to 5.5
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 41.4 to 50.3
86.5 to 89.9
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
0 to 0.3
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.8 to 1.2
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
4.0 to 5.3