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AWS ER70S-B2L vs. EN 1.7779 Steel

Both AWS ER70S-B2L and EN 1.7779 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-B2L and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 590
810
Tensile Strength: Yield (Proof), MPa 450
660

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
41
Embodied Water, L/kg 54
64

Common Calculations

PREN (Pitting Resistance) 3.1
5.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 530
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.050
0.17 to 0.23
Chromium (Cr), % 1.2 to 1.5
3.0 to 3.3
Copper (Cu), % 0 to 0.35
0 to 0.3
Iron (Fe), % 95.3 to 97.6
93.8 to 95.4
Manganese (Mn), % 0.4 to 0.7
0.3 to 0.5
Molybdenum (Mo), % 0.4 to 0.65
0.5 to 0.6
Nickel (Ni), % 0 to 0.2
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.4 to 0.7
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55
Residuals, % 0 to 0.5
0