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EN 1.3555 Steel vs. ACI-ASTM CN7MS Steel

Both EN 1.3555 steel and ACI-ASTM CN7MS steel are iron alloys. They have 60% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 770
540

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Maximum Temperature: Mechanical, °C 540
1040
Melting Completion (Liquidus), °C 1500
1400
Melting Onset (Solidus), °C 1450
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
28
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.6
5.1
Embodied Energy, MJ/kg 81
71
Embodied Water, L/kg 90
180

Common Calculations

PREN (Pitting Resistance) 18
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 23
19
Thermal Shock Resistance, points 22
13

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.070
Chromium (Cr), % 3.9 to 4.3
18 to 20
Copper (Cu), % 0 to 0.1
1.5 to 2.0
Iron (Fe), % 85.4 to 87.7
45.4 to 53.5
Manganese (Mn), % 0.15 to 0.35
0 to 1.0
Molybdenum (Mo), % 4.0 to 4.5
2.5 to 3.0
Nickel (Ni), % 3.2 to 3.6
22 to 25
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.1 to 0.25
2.5 to 3.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0