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AWS E309Mo vs. EN 1.7366 Steel

Both AWS E309Mo and EN 1.7366 steel are iron alloys. They have 65% 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 E309Mo and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
17 to 19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
74
Tensile Strength: Ultimate (UTS), MPa 620
460 to 710

Thermal Properties

Latent Heat of Fusion, J/g 300
260
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
40
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 22
4.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.7
Embodied Energy, MJ/kg 59
23
Embodied Water, L/kg 180
69

Common Calculations

PREN (Pitting Resistance) 32
6.8
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
16 to 25
Strength to Weight: Bending, points 20
17 to 23
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 15
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.18
Chromium (Cr), % 22 to 25
4.0 to 6.0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 53.6 to 63.5
91.9 to 95.3
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
0.45 to 0.65
Nickel (Ni), % 12 to 14
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015