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ACI-ASTM CN7MS Steel vs. EN 1.8522 Steel

Both ACI-ASTM CN7MS steel and EN 1.8522 steel are iron alloys. They have 54% 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 CN7MS steel and the bottom bar is EN 1.8522 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
220 to 380
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 540
730 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Maximum Temperature: Mechanical, °C 1040
470
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
4.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
2.2
Embodied Energy, MJ/kg 71
31
Embodied Water, L/kg 180
63

Common Calculations

PREN (Pitting Resistance) 28
6.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
26 to 44
Strength to Weight: Bending, points 19
23 to 33
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 13
21 to 36

Alloy Composition

Carbon (C), % 0 to 0.070
0.29 to 0.36
Chromium (Cr), % 18 to 20
2.8 to 3.3
Copper (Cu), % 1.5 to 2.0
0 to 0.1
Iron (Fe), % 45.4 to 53.5
93.7 to 96
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 2.5 to 3.0
0.7 to 1.2
Nickel (Ni), % 22 to 25
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 2.5 to 3.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25