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AWS E309LMo vs. AISI 304L Stainless Steel

Both AWS E309LMo and AISI 304L 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 (10, in this case) are not shown.

For each property being compared, the top bar is AWS E309LMo and the bottom bar is AISI 304L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
6.7 to 46
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
540 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.1
Embodied Energy, MJ/kg 59
44
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 32
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
19 to 41
Strength to Weight: Bending, points 20
19 to 31
Thermal Diffusivity, mm2/s 3.9
4.2
Thermal Shock Resistance, points 15
12 to 25

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 22 to 25
18 to 20
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.6 to 63.5
65 to 74
Manganese (Mn), % 0.5 to 2.5
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 12 to 14
8.0 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030