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S44800 Stainless Steel vs. AWS E309LMo

Both S44800 stainless steel and AWS E309LMo are iron alloys. They have 87% of their average alloy composition in common. There are 25 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 S44800 stainless steel and the bottom bar is AWS E309LMo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
34
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
79
Tensile Strength: Ultimate (UTS), MPa 590
580

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
4.2
Embodied Energy, MJ/kg 52
59
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 42
32
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.6
3.9
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.040
Chromium (Cr), % 28 to 30
22 to 25
Copper (Cu), % 0 to 0.15
0 to 0.75
Iron (Fe), % 62.6 to 66.5
53.6 to 63.5
Manganese (Mn), % 0 to 0.3
0.5 to 2.5
Molybdenum (Mo), % 3.5 to 4.2
2.0 to 3.0
Nickel (Ni), % 2.0 to 2.5
12 to 14
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030