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AWS E309 vs. S44330 Stainless Steel

Both AWS E309 and S44330 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E309 and the bottom bar is S44330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
25
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 620
440

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.8
Embodied Energy, MJ/kg 52
40
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 25
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.025
Chromium (Cr), % 22 to 25
20 to 23
Copper (Cu), % 0 to 0.75
0.3 to 0.8
Iron (Fe), % 55.8 to 65.5
72.5 to 79.7
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
0
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.8