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

Both SAE-AISI H14 steel and ACI-ASTM CN3MN 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 SAE-AISI H14 steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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