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Grade N7M Nickel vs. SAE-AISI 1090 Steel

Grade N7M nickel belongs to the nickel alloys classification, while SAE-AISI 1090 steel belongs to the iron 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 grade N7M nickel and the bottom bar is SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 22
11
Fatigue Strength, MPa 190
320 to 380
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 85
72
Tensile Strength: Ultimate (UTS), MPa 590
790 to 950
Tensile Strength: Yield (Proof), MPa 310
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1650
1450
Melting Onset (Solidus), °C 1590
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 9.9
12

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 220
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 18
28 to 34
Strength to Weight: Bending, points 17
24 to 27
Thermal Shock Resistance, points 19
25 to 31

Alloy Composition

Carbon (C), % 0 to 0.070
0.85 to 1.0
Chromium (Cr), % 0 to 1.0
0
Iron (Fe), % 0 to 3.0
98 to 98.6
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 30 to 33
0
Nickel (Ni), % 60.9 to 70
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050