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AWS E309Nb vs. Automotive Grey Cast Iron

Both AWS E309Nb and automotive grey cast iron are iron alloys. There are 24 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 E309Nb and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 34
9.6 to 14
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
69 to 70
Tensile Strength: Ultimate (UTS), MPa 620
140 to 290

Thermal Properties

Latent Heat of Fusion, J/g 300
260 to 280
Melting Completion (Liquidus), °C 1420
1380 to 1390
Melting Onset (Solidus), °C 1380
1340 to 1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
41 to 43
Thermal Expansion, µm/m-K 14
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9 to 3.0
Density, g/cm3 7.8
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 4.4
1.5 to 1.7
Embodied Energy, MJ/kg 64
21 to 24
Embodied Water, L/kg 180
44 to 51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
5.2 to 11
Strength to Weight: Bending, points 21
8.0 to 13
Thermal Diffusivity, mm2/s 4.0
11 to 12
Thermal Shock Resistance, points 16
4.2 to 8.6