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AISI 309 Stainless Steel vs. Nickel 693

AISI 309 stainless steel belongs to the iron alloys classification, while nickel 693 belongs to the nickel alloys. They have 42% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is nickel 693.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 47
34
Fatigue Strength, MPa 250 to 280
230
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 420 to 470
440
Tensile Strength: Ultimate (UTS), MPa 600 to 710
660
Tensile Strength: Yield (Proof), MPa 260 to 350
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
9.1
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
60
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.6
9.9
Embodied Energy, MJ/kg 51
140
Embodied Water, L/kg 170
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
190
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
23
Strength to Weight: Bending, points 20 to 23
21
Thermal Diffusivity, mm2/s 4.3
2.3
Thermal Shock Resistance, points 14 to 16
19

Alloy Composition

Aluminum (Al), % 0
2.5 to 4.0
Carbon (C), % 0 to 0.2
0 to 0.15
Chromium (Cr), % 22 to 24
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 58 to 66
2.5 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 12 to 15
53.3 to 67.5
Niobium (Nb), % 0
0.5 to 2.5
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 0.010
Titanium (Ti), % 0
0 to 1.0