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AISI 304L Stainless Steel vs. Grade N7M Nickel

AISI 304L 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 AISI 304L stainless steel and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 6.7 to 46
22
Fatigue Strength, MPa 170 to 430
190
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
85
Tensile Strength: Ultimate (UTS), MPa 540 to 1160
590
Tensile Strength: Yield (Proof), MPa 190 to 870
310

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 540
900
Melting Completion (Liquidus), °C 1450
1650
Melting Onset (Solidus), °C 1400
1590
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 17
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
75
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 3.1
16
Embodied Energy, MJ/kg 44
200
Embodied Water, L/kg 150
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 240
110
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 1900
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 19 to 41
18
Strength to Weight: Bending, points 19 to 31
17
Thermal Shock Resistance, points 12 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 18 to 20
0 to 1.0
Iron (Fe), % 65 to 74
0 to 3.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
30 to 33
Nickel (Ni), % 8.0 to 12
60.9 to 70
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030