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ACI-ASTM CN7M Steel vs. Nickel 617

ACI-ASTM CN7M steel belongs to the iron alloys classification, while nickel 617 belongs to the nickel alloys. They have 55% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is nickel 617.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 44
40
Fatigue Strength, MPa 190
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 480
740
Tensile Strength: Yield (Proof), MPa 200
280

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1450
1330
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 32
75
Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 5.6
10
Embodied Energy, MJ/kg 78
140
Embodied Water, L/kg 210
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
230
Resilience: Unit (Modulus of Resilience), kJ/m3 110
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 5.6
3.5
Thermal Shock Resistance, points 12
21

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.070
0.050 to 0.15
Chromium (Cr), % 19 to 22
20 to 24
Cobalt (Co), % 0
10 to 15
Copper (Cu), % 3.0 to 4.0
0 to 0.5
Iron (Fe), % 37.4 to 48.5
0 to 3.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
8.0 to 10
Nickel (Ni), % 27.5 to 30.5
44.5 to 62
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015