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ACI-ASTM CN7M Steel vs. EN 1.1203 Steel

Both ACI-ASTM CN7M steel and EN 1.1203 steel are iron alloys. They have 44% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.1203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
12 to 15
Fatigue Strength, MPa 190
210 to 310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 480
690 to 780
Tensile Strength: Yield (Proof), MPa 200
340 to 480

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
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
48
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.1
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.4
Embodied Energy, MJ/kg 78
19
Embodied Water, L/kg 210
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
69 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
310 to 610
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
25 to 28
Strength to Weight: Bending, points 17
22 to 24
Thermal Diffusivity, mm2/s 5.6
13
Thermal Shock Resistance, points 12
22 to 25

Alloy Composition

Carbon (C), % 0 to 0.070
0.52 to 0.6
Chromium (Cr), % 19 to 22
0 to 0.4
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
97.1 to 98.9
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.1
Nickel (Ni), % 27.5 to 30.5
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035