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AWS E2594 vs. EN 1.7779 Steel

Both AWS E2594 and EN 1.7779 steel are iron alloys. They have 63% 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 E2594 and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
16
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 850
810

Thermal Properties

Latent Heat of Fusion, J/g 300
260
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 16
39
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 22
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.8
Embodied Energy, MJ/kg 60
41
Embodied Water, L/kg 190
64

Common Calculations

PREN (Pitting Resistance) 43
5.0
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
29
Strength to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 21
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.040
0.17 to 0.23
Chromium (Cr), % 24 to 27
3.0 to 3.3
Copper (Cu), % 0 to 0.75
0 to 0.3
Iron (Fe), % 53.8 to 63.8
93.8 to 95.4
Manganese (Mn), % 0.5 to 2.0
0.3 to 0.5
Molybdenum (Mo), % 3.5 to 4.5
0.5 to 0.6
Nickel (Ni), % 8.0 to 10.5
0 to 0.3
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55