Cast iron GJL200
Among the main characteristics of GJL200 cast iron, in addition to very low hardness, are good noise and vibration dampening capacity, and high thermal conductivity.
Like other lamellar cast irons, it is made by continuous casting, a process that allows cast iron bars to be produced free of blowholes or nonmetallic inclusions.
Areas of Application
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Grids
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Distributors
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Pump body
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Racing parts
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Engine shields
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| GJL200 (G20) | ||
|---|---|---|
| Hardness HB (30) | 150 - 210 | |
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Testing load Rm N/mm2 |
200 | |
| Yield strength Rp 0,2 | - | |
| Enlong. A % | 1 - 3 | |
| Structure | Ferritic-pearlitic | |
| Graphite | Lamellar | |
| Wall thickness Determinant [mm] |
5 |
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Predicted tensile strength Rm (on sample) [N/mm2] |
from 200 to 300 | |
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Predicted tensile strength Rm (on test) [N/mm2] |
- |
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| Predictable tensile strength Rm (tested) [N/mm 2] |
205 180 155 130 115 |
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The above data are intended as a guideline since they can be found only on standard specimens cast automatically on in-ground molding equipment. The values actually found on a casting depend strongly on the thickness of the element under consideration and the morphology of the casting (in fact, these two aspects jointly determine the cooling curves and thus the set of mechanical characteristics).
Cast iron prototype creations
