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S44800 Stainless Steel vs. Grade N7M Nickel

S44800 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 (10, in this case) are not shown.

For each property being compared, the top bar is S44800 stainless steel and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 23
22
Fatigue Strength, MPa 300
190
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 82
85
Tensile Strength: Ultimate (UTS), MPa 590
590
Tensile Strength: Yield (Proof), MPa 450
310

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1460
1650
Melting Onset (Solidus), °C 1410
1590
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 11
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
75
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 3.8
16
Embodied Energy, MJ/kg 52
200
Embodied Water, L/kg 190
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 480
220
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
17
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.070
Chromium (Cr), % 28 to 30
0 to 1.0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 62.6 to 66.5
0 to 3.0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.2
30 to 33
Nickel (Ni), % 2.0 to 2.5
60.9 to 70
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030