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ACI-ASTM CN7MS Steel vs. Nickel 200

ACI-ASTM CN7MS steel belongs to the iron alloys classification, while nickel 200 belongs to the nickel alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 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 nickel 200.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 39
23 to 44
Fatigue Strength, MPa 200
120 to 350
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
70
Tensile Strength: Ultimate (UTS), MPa 540
420 to 540
Tensile Strength: Yield (Proof), MPa 230
120 to 370

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Mechanical, °C 1040
900
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1440
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 12
69
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
65
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 5.1
11
Embodied Energy, MJ/kg 71
150
Embodied Water, L/kg 180
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 140
42 to 370
Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 19
13 to 17
Strength to Weight: Bending, points 19
14 to 17
Thermal Diffusivity, mm2/s 3.2
17
Thermal Shock Resistance, points 13
13 to 16

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 1.5 to 2.0
0 to 0.25
Iron (Fe), % 45.4 to 53.5
0 to 0.4
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 22 to 25
99 to 100
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 2.5 to 3.5
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010