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Grade N7M Nickel vs. EN 1.4749 Stainless Steel

Grade N7M nickel belongs to the nickel alloys classification, while EN 1.4749 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 22
16
Fatigue Strength, MPa 190
190
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 85
80
Tensile Strength: Ultimate (UTS), MPa 590
600
Tensile Strength: Yield (Proof), MPa 310
320

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1650
1420
Melting Onset (Solidus), °C 1590
1380
Specific Heat Capacity, J/kg-K 390
490
Thermal Expansion, µm/m-K 9.9
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 75
13
Density, g/cm3 9.3
7.6
Embodied Carbon, kg CO2/kg material 16
2.5
Embodied Energy, MJ/kg 200
36
Embodied Water, L/kg 270
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 220
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 17
21
Thermal Shock Resistance, points 19
22

Alloy Composition

Carbon (C), % 0 to 0.070
0.15 to 0.2
Chromium (Cr), % 0 to 1.0
26 to 29
Iron (Fe), % 0 to 3.0
68.5 to 73.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 30 to 33
0
Nickel (Ni), % 60.9 to 70
0
Nitrogen (N), % 0
0.15 to 0.25
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 0.015