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EN 1.8151 Steel vs. ACI-ASTM CN7MS Steel

Both EN 1.8151 steel and ACI-ASTM CN7MS steel are iron alloys. They have 52% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.8151 steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 540
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
540

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Maximum Temperature: Mechanical, °C 410
1040
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.8
5.1
Embodied Energy, MJ/kg 25
71
Embodied Water, L/kg 49
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 70
19
Strength to Weight: Bending, points 22 to 45
19
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 20 to 58
13

Alloy Composition

Carbon (C), % 0.4 to 0.5
0 to 0.070
Chromium (Cr), % 0.4 to 0.8
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 95.9 to 97.2
45.4 to 53.5
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
22 to 25
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 1.3 to 1.7
2.5 to 3.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0.1 to 0.2
0