EN-GJS-500-7
5.3200Ferritic-pearlitic ductile cast iron with minimum tensile strength 500 MPa and minimum elongation 7%. The balanced grade offering significantly higher strength than EN-GJS-400-15 while retaining reasonable ductility. Mixed ferrite-pearlite matrix (typically 40-50% pearlite). Used for crankshafts, connecting rods, suspension components, gear housings, heavy-duty pipe fittings, and medium-stress structural castings. Equivalent to DIN GGG50, JIS FCD500.
Chemical composition comparison (wt%)
Side-by-side: EN-GJS-500-7 (EN) (typical foundry practice) vs ASTM
| Element | EN-GJS-500-7 (EN) | ASTM | Overlap |
|---|---|---|---|
| C | 3.2–3.7% | — | — |
| Si | 2–2.6% | — | — |
| Mn | 0.2–0.5% | — | — |
| P | ≤ 0.05% | — | — |
| S | ≤ 0.02% | — | — |
| Mg | 0.03–0.06% | — | — |
Mechanical properties
As Cast
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 500 | MPa |
| Yield Strength | ≥ 320 | MPa |
| Elongation | ≥ 7 | % |
| Density | ≥ 7.1 | g/cm3 |
| Elastic Modulus | ≥ 169 | GPa |
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EN-GJS-600-3
5.3201Mainly pearlitic ductile cast iron with minimum tensile strength 600 MPa and minimum elongation 3%. High-strength grade achieved through predominantly pearlitic matrix, often with Cu or Sn additions as pearlite stabilizers. Used for camshafts, gears, high-stress housings, heavy-duty hydraulic components, press frames, and load-bearing structural castings where high strength is more important than ductility. Equivalent to DIN GGG60, JIS FCD600.
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