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AWS ER80S-Ni3 vs. ACI-ASTM CB7Cu-1 Steel

Both AWS ER80S-Ni3 and ACI-ASTM CB7Cu-1 steel are iron alloys. They have 80% 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 AWS ER80S-Ni3 and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
5.7 to 11
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 630
960 to 1350
Tensile Strength: Yield (Proof), MPa 530
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1500
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.6
Embodied Energy, MJ/kg 23
38
Embodied Water, L/kg 52
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 740
1500 to 3590
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
34 to 48
Strength to Weight: Bending, points 21
28 to 35
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 19
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.070
Chromium (Cr), % 0
15.5 to 17.7
Copper (Cu), % 0 to 0.35
2.5 to 3.2
Iron (Fe), % 93.2 to 96.6
72.3 to 78.4
Manganese (Mn), % 0 to 1.3
0 to 0.7
Nickel (Ni), % 3.0 to 3.8
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.4 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Residuals, % 0 to 0.5
0