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EN 1.1181 Steel vs. AWS ER80S-Ni2

Both EN 1.1181 steel and AWS ER80S-Ni2 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 27 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 EN 1.1181 steel and the bottom bar is AWS ER80S-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 560 to 620
620
Tensile Strength: Yield (Proof), MPa 280 to 380
540

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
52
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
22
Strength to Weight: Bending, points 19 to 21
21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19 to 21
18

Alloy Composition


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Carbon (C), % 0.32 to 0.39
0 to 0.12
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 97.4 to 99.18
94.2 to 97.6
Manganese (Mn), % 0.5 to 0.8
0 to 1.3
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
2.0 to 2.8
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0.4 to 0.8
Sulfur (S), % 0 to 0.035
0 to 0.025
Residuals, % 0
0 to 0.5