GJL300 (GS30) | ||
---|---|---|
Hardness HB (30) | 170 - 240 | |
Testing load Rm N/mm2 |
250 | |
Yield strength Rp 0,2 | - | |
Enlong. A % | 1 - 3 | |
Structure | Perlitica | |
Graphite | Lamellare | |
Wall thickness Determinant [mm] |
5 |
|
Predicted tensile strength Rm (on sample) [N/mm2] |
da 250 a 350 | |
Predicted tensile strength Rm (on test) [N/mm2] |
- |
|
Predictable tensile strength Rm (tested) [N/mm 2] |
270 240 210 195 |
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).
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