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AWS E309LMo vs. AISI 201LN Stainless Steel

Both AWS E309LMo and AISI 201LN stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E309LMo and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
25 to 51
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
740 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
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
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 22
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.2
2.6
Embodied Energy, MJ/kg 59
38
Embodied Water, L/kg 180
140

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
27 to 38
Strength to Weight: Bending, points 20
24 to 30
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 15
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 22 to 25
16 to 17.5
Copper (Cu), % 0 to 0.75
0 to 1.0
Iron (Fe), % 53.6 to 63.5
67.9 to 73.5
Manganese (Mn), % 0.5 to 2.5
6.4 to 7.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 12 to 14
4.0 to 5.0
Nitrogen (N), % 0
0.1 to 0.25
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 0.015