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AISI 309 Stainless Steel vs. AWS ENi-1

AISI 309 stainless steel belongs to the iron alloys classification, while AWS ENi-1 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is AWS ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 34 to 47
22
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 78
69
Tensile Strength: Ultimate (UTS), MPa 600 to 710
470

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 16
73
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
19

Otherwise Unclassified Properties

Base Metal Price, % relative 19
60
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.6
11
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 170
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21 to 25
15
Strength to Weight: Bending, points 20 to 23
15
Thermal Diffusivity, mm2/s 4.3
19
Thermal Shock Resistance, points 14 to 16
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.0
Carbon (C), % 0 to 0.2
0 to 0.1
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58 to 66
0 to 0.75
Manganese (Mn), % 0 to 2.0
0 to 0.75
Nickel (Ni), % 12 to 15
92 to 99
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
1.0 to 4.0
Residuals, % 0
0 to 0.5