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AISI 303 Stainless Steel vs. Nickel 690

AISI 303 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 37% 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 AISI 303 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
90
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40 to 51
3.4 to 34
Fatigue Strength, MPa 230 to 360
180 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 430 to 470
420 to 570
Tensile Strength: Ultimate (UTS), MPa 600 to 690
640 to 990
Tensile Strength: Yield (Proof), MPa 230 to 420
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 930
1010
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.0
8.2
Embodied Energy, MJ/kg 42
120
Embodied Water, L/kg 140
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
21 to 33
Strength to Weight: Bending, points 20 to 22
20 to 27
Thermal Diffusivity, mm2/s 4.4
3.5
Thermal Shock Resistance, points 13 to 15
16 to 25

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 17 to 19
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 67.3 to 74.9
7.0 to 11
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 8.0 to 10
58 to 66
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0.15 to 0.35
0 to 0.015

Comparable Variants