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Nickel 30 vs. S21900 Stainless Steel

Nickel 30 belongs to the nickel alloys classification, while S21900 stainless steel belongs to the iron alloys. They have 42% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 30 and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
50
Fatigue Strength, MPa 200
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 82
78
Shear Strength, MPa 440
510
Tensile Strength: Ultimate (UTS), MPa 660
710
Tensile Strength: Yield (Proof), MPa 270
390

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1020
980
Melting Completion (Liquidus), °C 1480
1400
Melting Onset (Solidus), °C 1430
1350
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 10
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 60
15
Density, g/cm3 8.5
7.7
Embodied Carbon, kg CO2/kg material 9.4
3.0
Embodied Energy, MJ/kg 130
43
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
300
Resilience: Unit (Modulus of Resilience), kJ/m3 180
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 2.7
3.8
Thermal Shock Resistance, points 18
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 28 to 31.5
19 to 21.5
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 1.0 to 2.4
0
Iron (Fe), % 13 to 17
59.4 to 67.4
Manganese (Mn), % 0 to 0.030
8.0 to 10
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 30.2 to 52.2
5.5 to 7.5
Niobium (Nb), % 0.3 to 1.5
0
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 4.0
0