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EN 1.0050 Steel vs. AWS ER70S-A1

Both EN 1.0050 steel and AWS ER70S-A1 are iron alloys. They have a very high 98% of their average alloy composition in common. There are 27 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 1.0050 steel and the bottom bar is AWS ER70S-A1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
22
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 530
590
Tensile Strength: Yield (Proof), MPa 280
450

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
50
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
2.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 45
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 17
17

Alloy Composition


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Carbon (C), % 0
0 to 0.12
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 99.876 to 100
96.1 to 99.3
Manganese (Mn), % 0
0 to 1.3
Molybdenum (Mo), % 0
0.4 to 0.65
Nickel (Ni), % 0
0 to 0.2
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.055
0 to 0.025
Silicon (Si), % 0
0.3 to 0.7
Sulfur (S), % 0 to 0.055
0 to 0.025
Residuals, % 0
0 to 0.5