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AWS ER90S-B3 vs. Ductile Cast Iron

Both AWS ER90S-B3 and ductile cast iron are iron alloys. They have a very high 95% 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 AWS ER90S-B3 and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
170 to 180
Elongation at Break, % 19
2.1 to 20
Poisson's Ratio 0.29
0.28 to 0.31
Shear Modulus, GPa 73
64 to 70
Tensile Strength: Ultimate (UTS), MPa 690
460 to 920
Tensile Strength: Yield (Proof), MPa 620
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1160
Melting Onset (Solidus), °C 1420
1120
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
31 to 36
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
1.9
Density, g/cm3 7.8
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 1.8
1.5
Embodied Energy, MJ/kg 24
21
Embodied Water, L/kg 60
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
280 to 1330
Stiffness to Weight: Axial, points 13
12 to 14
Stiffness to Weight: Bending, points 24
24 to 26
Strength to Weight: Axial, points 25
17 to 35
Strength to Weight: Bending, points 22
18 to 29
Thermal Diffusivity, mm2/s 11
8.9 to 10
Thermal Shock Resistance, points 20
17 to 35

Alloy Composition


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Carbon (C), % 0.070 to 0.12
3.0 to 3.5
Chromium (Cr), % 2.3 to 2.7
0
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 93.5 to 95.9
93.7 to 95.5
Manganese (Mn), % 0.4 to 0.7
0
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.025
0 to 0.080
Silicon (Si), % 0.4 to 0.7
1.5 to 2.8
Sulfur (S), % 0 to 0.025
0
Residuals, % 0 to 0.5
0