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ACI-ASTM CN7MS Steel vs. EN 1.3538 Steel

Both ACI-ASTM CN7MS steel and EN 1.3538 steel are iron alloys. They have 53% 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 1.3538 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
670 to 740

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 1040
440
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
41
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
3.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
1.6
Embodied Energy, MJ/kg 71
21
Embodied Water, L/kg 180
56

Common Calculations

PREN (Pitting Resistance) 28
3.3
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
24 to 26
Strength to Weight: Bending, points 19
22 to 23
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 13
20 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.070
0.93 to 1.1
Chromium (Cr), % 18 to 20
1.7 to 2.0
Copper (Cu), % 1.5 to 2.0
0 to 0.3
Iron (Fe), % 45.4 to 53.5
96 to 97.2
Manganese (Mn), % 0 to 1.0
0.6 to 0.8
Molybdenum (Mo), % 2.5 to 3.0
0.4 to 0.5
Nickel (Ni), % 22 to 25
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 2.5 to 3.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.030