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SAE-AISI 1080 Steel vs. Grade N7M Nickel

SAE-AISI 1080 steel belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 11
22
Fatigue Strength, MPa 300 to 360
190
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
85
Tensile Strength: Ultimate (UTS), MPa 770 to 870
590
Tensile Strength: Yield (Proof), MPa 480 to 590
310

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1450
1650
Melting Onset (Solidus), °C 1410
1590
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 12
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
75
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 1.4
16
Embodied Energy, MJ/kg 19
200
Embodied Water, L/kg 46
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
110
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 27 to 31
18
Strength to Weight: Bending, points 24 to 26
17
Thermal Shock Resistance, points 25 to 29
19

Alloy Composition

Carbon (C), % 0.75 to 0.88
0 to 0.070
Chromium (Cr), % 0
0 to 1.0
Iron (Fe), % 98.1 to 98.7
0 to 3.0
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
30 to 33
Nickel (Ni), % 0
60.9 to 70
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030