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SAE-AISI H43 Steel vs. ACI-ASTM CN7MS Steel

Both SAE-AISI H43 steel and ACI-ASTM CN7MS steel are iron alloys. They have 57% of their average alloy composition in common. There are 22 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 H43 steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
540

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Melting Completion (Liquidus), °C 1530
1400
Melting Onset (Solidus), °C 1480
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
28
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 8.2
5.1
Embodied Energy, MJ/kg 120
71
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 31
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 75
19
Strength to Weight: Bending, points 22 to 46
19
Thermal Diffusivity, mm2/s 8.3
3.2
Thermal Shock Resistance, points 21 to 62
13

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.070
Chromium (Cr), % 3.8 to 4.5
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 83.2 to 85.9
45.4 to 53.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 7.8 to 8.5
2.5 to 3.0
Nickel (Ni), % 0
22 to 25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
2.5 to 3.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 1.8 to 2.2
0