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Nickel 690 vs. S30441 Stainless Steel

Nickel 690 belongs to the nickel alloys classification, while S30441 stainless steel belongs to the iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 nickel 690 and the bottom bar is S30441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.4 to 34
45
Fatigue Strength, MPa 180 to 300
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 420 to 570
400
Tensile Strength: Ultimate (UTS), MPa 640 to 990
580
Tensile Strength: Yield (Proof), MPa 250 to 760
230

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 1010
940
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
18
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.4
Embodied Energy, MJ/kg 120
50
Embodied Water, L/kg 290
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
21
Strength to Weight: Bending, points 20 to 27
20
Thermal Diffusivity, mm2/s 3.5
4.0
Thermal Shock Resistance, points 16 to 25
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 27 to 31
17.5 to 19.5
Copper (Cu), % 0 to 0.5
1.5 to 2.5
Iron (Fe), % 7.0 to 11
62 to 71.7
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 58 to 66
8.0 to 10.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8