Nodular cast iron 80 GOST7293-85 vs Nodular cast iron
Property comparison of Nodular cast iron 80 GOST7293-85 and Nodular cast iron, both cast iron.
| Property | Nodular cast iron 80 GOST7293-85 | Nodular cast iron | Difference |
|---|---|---|---|
| Yield strength | 480 MPa | 420 MPa | -13% |
| Tensile strength | 800 MPa | 700 MPa | -13% |
| Elastic modulus | 180,000 MPa | 169,000 MPa | -6% |
| Shear modulus | 75,000 MPa | 70,000 MPa | -7% |
| Poisson ratio | 0.2 | 0.2 | 0% |
| Density | 7,160 kg/m³ | 7,160 kg/m³ | 0% |
| Thermal conductivity | 36 W/m·K | 36 W/m·K | 0% |
| Specific heat | 460 J/kg·K | 460 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000011 1/K | 0.000011 1/K | 0% |
| Melting point | 1,150 °C | 1,150 °C | 0% |
Difference is Nodular cast iron relative to Nodular cast iron 80 GOST7293-85. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- GOST
- standard
- BS
About ductile (nodular) cast iron
Ductile iron, also called nodular or spheroidal graphite iron, has graphite in spherical form rather than flakes. The microstructure gives it tensile strength and ductility much closer to steel than gray iron, while retaining cast-iron's castability. It is the standard for water and sewer pipe, pump housings, and crankshafts. ASTM A536 grades (60-40-18, 80-55-06, etc.) report tensile, yield, and elongation.
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