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AWS E70C-B2L vs. Austempered Cast Iron

Both AWS E70C-B2L and austempered cast iron are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 25 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 E70C-B2L and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Elongation at Break, % 21
1.1 to 13
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
62 to 69
Tensile Strength: Ultimate (UTS), MPa 580
860 to 1800
Tensile Strength: Yield (Proof), MPa 460
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 39
42
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
2.9
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 22
25
Embodied Water, L/kg 54
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 550
880 to 3970
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
32 to 66
Strength to Weight: Bending, points 20
27 to 44
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 17
25 to 53

Alloy Composition


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Aluminum (Al), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0 to 0.050
3.4 to 3.8
Chromium (Cr), % 1.0 to 1.5
0 to 0.1
Copper (Cu), % 0 to 0.35
0 to 0.8
Iron (Fe), % 95.1 to 98
89.6 to 94
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0.4 to 1.0
0.3 to 0.4
Molybdenum (Mo), % 0.4 to 0.65
0 to 0.3
Nickel (Ni), % 0 to 0.2
0 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0.25 to 0.6
2.3 to 2.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0 to 0.030
0 to 0.1
Residuals, % 0 to 0.5
0