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AWS E430 vs. EN 1.7231 Steel

Both AWS E430 and EN 1.7231 steel are iron alloys. They have 84% of their average alloy composition in common. There are 24 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 E430 and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
11 to 12
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
790 to 930

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
46
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.5
Embodied Energy, MJ/kg 31
20
Embodied Water, L/kg 120
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
28 to 33
Strength to Weight: Bending, points 18
24 to 27
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 13
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.1
0.38 to 0.45
Chromium (Cr), % 15 to 18
0.8 to 1.2
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 77.8 to 85
96.4 to 98.1
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.75
0.15 to 0.3
Nickel (Ni), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.9
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030