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AISI 303 Stainless Steel vs. Nickel 825

AISI 303 stainless steel belongs to the iron alloys classification, while nickel 825 belongs to the nickel alloys. They have 58% of their average alloy composition in common. There are 31 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 AISI 303 stainless steel and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40 to 51
34
Fatigue Strength, MPa 230 to 360
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 430 to 470
430
Tensile Strength: Ultimate (UTS), MPa 600 to 690
650
Tensile Strength: Yield (Proof), MPa 230 to 420
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Mechanical, °C 930
980
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
11
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
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
41
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.0
7.2
Embodied Energy, MJ/kg 42
100
Embodied Water, L/kg 140
230

Common Calculations

PREN (Pitting Resistance) 18
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
22
Strength to Weight: Bending, points 20 to 22
20
Thermal Diffusivity, mm2/s 4.4
2.9
Thermal Shock Resistance, points 13 to 15
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 17 to 19
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 67.3 to 74.9
22 to 37.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 8.0 to 10
38 to 46
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0 to 0.050
Sulfur (S), % 0.15 to 0.35
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.2