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EN 1.3975 Stainless Steel vs. Grade N7M Nickel

EN 1.3975 stainless 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless 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, % 27
22
Fatigue Strength, MPa 230
190
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 76
85
Tensile Strength: Ultimate (UTS), MPa 660
590
Tensile Strength: Yield (Proof), MPa 320
310

Thermal Properties

Latent Heat of Fusion, J/g 340
320
Maximum Temperature: Mechanical, °C 910
900
Melting Completion (Liquidus), °C 1360
1650
Melting Onset (Solidus), °C 1320
1590
Specific Heat Capacity, J/kg-K 500
390
Thermal Expansion, µm/m-K 16
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.5
9.3
Embodied Carbon, kg CO2/kg material 3.3
16
Embodied Energy, MJ/kg 47
200
Embodied Water, L/kg 150
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
22
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
17
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 16 to 18
0 to 1.0
Iron (Fe), % 58.2 to 65.4
0 to 3.0
Manganese (Mn), % 7.0 to 9.0
0 to 1.0
Molybdenum (Mo), % 0 to 1.0
30 to 33
Nickel (Ni), % 8.0 to 9.0
60.9 to 70
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030