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AWS E309L vs. EN 1.4931 Steel

Both AWS E309L and EN 1.4931 steel are iron alloys. They have 74% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E309L and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
17
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
810

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
24
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
11

Otherwise Unclassified Properties

Base Metal Price, % relative 20
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
2.9
Embodied Energy, MJ/kg 52
42
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 25
16
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.0
6.5
Thermal Shock Resistance, points 15
22

Alloy Composition

Carbon (C), % 0 to 0.040
0.2 to 0.26
Chromium (Cr), % 22 to 25
11.3 to 12.2
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 55.9 to 65.5
83.2 to 86.8
Manganese (Mn), % 0.5 to 2.5
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.75
1.0 to 1.2
Nickel (Ni), % 12 to 14
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35