Gray iron castings
Gray cast iron is a relatively inexpensive cast iron material with good casting properties and machining performance. It is widely used in various mechanical parts such as frames, boxes, and shells. The graphite inside gray cast iron is distributed in flakes. Graphite is prone to stress concentration, so gray cast iron has low strength, plasticity and toughness, but has excellent shock absorption, low notch sensitivity and wear resistance.
Process
- Green sand process—for small and medium size parts with low dimension requirement. (CT11-CT14, 0.2-200kg).
- Resin sand process—for medium and large size parts with high dimension requirement. (CT10-CT11, 100kg-3000kg).
- Shell molding process— for small and medium size parts with stirct dimension requirement. (CT7-CT9, ≤50kg).
- Lost foam process—for small and medium size parts with complex structure. (CT7-CT9, ≤100kg).
- Vacuum process — for medium and large parts with great surface roughness. (CT7-CT9, ≤10000kg).
Material standard
| ISO185 | 185/JL/150, 185/JL/200, 185/JL/225, 185/JL/250, 185/JL/275, 185/JL/300 |
| GB/T 9439 | HT150, HT200, HT225, HT250, HT275, HT300 |
| EN 1561 | EN-GJL-150, EN-GJL-200, EN-GJL-250, EN-GJL-300 |
| DIN 1691 | GG-15, GG-20, GG-25, GG-30 |
| BS 1452 | 150, 180, 200, 220, 250, 300 |
| JIS G5501 | FC150, FC200, FC250, FC300 |
| ASTM A48 | No.20, No.25, No30, No.35, No.40, No.45, N0.50 |
Typical products and applications:
♦ Municipal products
♦ Mechanical parts
♦ Agricultural machinery
♦ Architecture
♦ Energy field
♦ Cookware
For more inquiries or technical questions, please contact the Jianheng Metal Service Team. We will provide the most reasonable technical solution and the best quotation according to your product.