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ACI-ASTM CN7M Steel vs. EN 1.8522 Steel

Both ACI-ASTM CN7M steel and EN 1.8522 steel are iron alloys. They have 48% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is EN 1.8522 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
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 480
730 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
470
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
39
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 32
4.2
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.2
Embodied Energy, MJ/kg 78
31
Embodied Water, L/kg 210
63

Common Calculations

PREN (Pitting Resistance) 29
6.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
26 to 44
Strength to Weight: Bending, points 17
23 to 33
Thermal Diffusivity, mm2/s 5.6
11
Thermal Shock Resistance, points 12
21 to 36

Alloy Composition

Carbon (C), % 0 to 0.070
0.29 to 0.36
Chromium (Cr), % 19 to 22
2.8 to 3.3
Copper (Cu), % 3.0 to 4.0
0 to 0.1
Iron (Fe), % 37.4 to 48.5
93.7 to 96
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0.7 to 1.2
Nickel (Ni), % 27.5 to 30.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25