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AWS E309Nb vs. S30415 Stainless Steel

Both AWS E309Nb and S30415 stainless steel are iron alloys. They have 89% 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 E309Nb and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
45
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 620
670

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
3.1
Embodied Energy, MJ/kg 64
43
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 25
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 4.0
5.6
Thermal Shock Resistance, points 16
15

Alloy Composition

Carbon (C), % 0 to 0.12
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 22 to 25
18 to 19
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 54.8 to 64.8
67.8 to 71.8
Manganese (Mn), % 0.5 to 2.5
0 to 0.8
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
9.0 to 10
Niobium (Nb), % 0.7 to 1.0
0
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030