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Grade N7M Nickel vs. EN 1.4669 Stainless Steel

Grade N7M nickel belongs to the nickel alloys classification, while EN 1.4669 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is EN 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 22
28
Fatigue Strength, MPa 190
330
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 590
780
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 900
1030
Melting Completion (Liquidus), °C 1650
1420
Melting Onset (Solidus), °C 1590
1370
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 9.9
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
13
Density, g/cm3 9.3
7.7
Embodied Carbon, kg CO2/kg material 16
2.6
Embodied Energy, MJ/kg 200
38
Embodied Water, L/kg 270
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 220
510
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 19
21

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.045
Chromium (Cr), % 0 to 1.0
21.5 to 24
Copper (Cu), % 0
1.6 to 3.0
Iron (Fe), % 0 to 3.0
65.2 to 74.8
Manganese (Mn), % 0 to 1.0
1.0 to 3.0
Molybdenum (Mo), % 30 to 33
0 to 0.5
Nickel (Ni), % 60.9 to 70
1.0 to 3.0
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030