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AISI 204 Stainless Steel vs. Nickel 690

AISI 204 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 28% 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 (2, in this case) are not shown.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
90
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 39
3.4 to 34
Fatigue Strength, MPa 320 to 720
180 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 500 to 700
420 to 570
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
640 to 990
Tensile Strength: Yield (Proof), MPa 380 to 1080
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 850
1010
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1370
1340
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
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 2.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
50
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.4
8.2
Embodied Energy, MJ/kg 35
120
Embodied Water, L/kg 130
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
160 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 40
21 to 33
Strength to Weight: Bending, points 24 to 31
20 to 27
Thermal Diffusivity, mm2/s 4.1
3.5
Thermal Shock Resistance, points 16 to 24
16 to 25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 15 to 17
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 69.6 to 76.4
7.0 to 11
Manganese (Mn), % 7.0 to 9.0
0 to 0.5
Nickel (Ni), % 1.5 to 3.0
58 to 66
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants