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AISI 304 Stainless Steel vs. Nickel 690

AISI 304 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel 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 AISI 304 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 360
90
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 8.0 to 43
3.4 to 34
Fatigue Strength, MPa 210 to 440
180 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 400 to 690
420 to 570
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
640 to 990
Tensile Strength: Yield (Proof), MPa 230 to 860
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 710
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 2.7
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 43
120
Embodied Water, L/kg 150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 42
21 to 33
Strength to Weight: Bending, points 20 to 32
20 to 27
Thermal Diffusivity, mm2/s 4.2
3.5
Thermal Shock Resistance, points 12 to 25
16 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 18 to 20
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 66.5 to 74
7.0 to 11
Manganese (Mn), % 0 to 2.0
0 to 0.5
Nickel (Ni), % 8.0 to 10.5
58 to 66
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants