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AWS E2209 vs. S40977 Stainless Steel

Both AWS E2209 and S40977 stainless steel are iron alloys. They have 76% 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 E2209 and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
21
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 770
510

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.0
1.9
Embodied Energy, MJ/kg 55
27
Embodied Water, L/kg 170
97

Common Calculations

PREN (Pitting Resistance) 35
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 4.3
6.7
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 21.5 to 23.5
10.5 to 12.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.4 to 66.9
83.9 to 89.2
Manganese (Mn), % 0.5 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 8.5 to 10.5
0.3 to 1.0
Nitrogen (N), % 0.080 to 0.2
0 to 0.030
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 0.015