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EN 1.7321 Steel vs. AWS E309Mo

Both EN 1.7321 steel and AWS E309Mo are iron alloys. They have 61% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7321 steel and the bottom bar is AWS E309Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 490 to 1460
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.2
Embodied Energy, MJ/kg 20
59
Embodied Water, L/kg 50
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 52
22
Strength to Weight: Bending, points 18 to 36
20
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 14 to 43
15

Alloy Composition

Carbon (C), % 0.17 to 0.23
0 to 0.12
Chromium (Cr), % 0.3 to 0.6
22 to 25
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 97.1 to 98.4
53.6 to 63.5
Manganese (Mn), % 0.7 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0.4 to 0.5
2.0 to 3.0
Nickel (Ni), % 0
12 to 14
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030