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AISI 309 Stainless Steel vs. AWS ERNiCrMo-10

AISI 309 stainless steel belongs to the iron alloys classification, while AWS ERNiCrMo-10 belongs to the nickel alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 ERNiCrMo-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34 to 47
28
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
84
Tensile Strength: Ultimate (UTS), MPa 600 to 710
790

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 16
10
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
70
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.6
12
Embodied Energy, MJ/kg 51
160
Embodied Water, L/kg 170
300

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 25
25
Strength to Weight: Bending, points 20 to 23
21
Thermal Diffusivity, mm2/s 4.3
2.7
Thermal Shock Resistance, points 14 to 16
21

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.015
Chromium (Cr), % 22 to 24
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 58 to 66
2.0 to 6.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 12 to 15
49 to 63
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Residuals, % 0
0 to 0.5