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AWS E309LMo vs. S44635 Stainless Steel

Both AWS E309LMo and S44635 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 E309LMo and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
23
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 580
710

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
4.4
Embodied Energy, MJ/kg 59
62
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 32
39
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.9
4.4
Thermal Shock Resistance, points 15
23

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.025
Chromium (Cr), % 22 to 25
24.5 to 26
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.6 to 63.5
61.5 to 68.5
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
3.5 to 4.5
Nickel (Ni), % 12 to 14
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8