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ACI-ASTM CN3M Steel vs. EN 1.6956 Steel

Both ACI-ASTM CN3M steel and EN 1.6956 steel are iron alloys. They have 53% of their average alloy composition in common. There are 31 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 CN3M steel and the bottom bar is EN 1.6956 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
370
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
9.6
Fatigue Strength, MPa 150
680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 500
1230
Tensile Strength: Yield (Proof), MPa 190
1120

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
5.0
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.9
2.2
Embodied Energy, MJ/kg 80
31
Embodied Water, L/kg 200
60

Common Calculations

PREN (Pitting Resistance) 38
2.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 89
3320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
43
Strength to Weight: Bending, points 17
32
Thermal Diffusivity, mm2/s 3.4
12
Thermal Shock Resistance, points 11
36

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.38
Chromium (Cr), % 20 to 22
1.0 to 1.7
Iron (Fe), % 42.4 to 52.5
92.4 to 95.3
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 4.5 to 5.5
0.3 to 0.6
Nickel (Ni), % 23 to 27
2.9 to 3.8
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Vanadium (V), % 0
0.080 to 0.25