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Gray Iron Casting Series 2
JHshukong
Engineered for industrial machinery operating in high-temperature and vibratory working conditions, our gray iron casting parts deliver exceptional stability and long service life for critical equipment components. Cast from premium ASTM A48 Grade 60 and EN-GJL-300 gray iron, our vibration damping gray iron castings leverage the material’s inherent damping capacity and thermal stability, making them the ideal choice for business clients in the industrial manufacturing sector. These heat resistant gray iron engine components withstand continuous operating temperatures up to 400°C, effectively reducing equipment noise and vibration while maintaining dimensional stability under harsh thermal cycles. With strict quality control throughout production, our gray iron casting series meets international industry standards, supporting reliable operation for a wide range of heavy-duty industrial applications.
Our heat resistant gray iron castings stand out with industry-leading thermal and vibration performance. The material’s loss factor reaches ≥0.02 (ASTM E797), 3× higher than steel, effectively suppressing mechanical vibration and reducing noise emission in high-speed equipment. At 300°C, the castings maintain 90% of their room-temperature hardness (HB 230-260), with a thermal expansion coefficient of 12×10⁻⁶/°C, minimizing dimensional changes during repeated heating and cooling cycles. We optimize the alloy composition with 2.5-3.5% silicon content, enhancing thermal conductivity up to 45 W/m·K and oxidation resistance for long-term high-temperature use. Our resin sand casting process enables complex geometries including multi-passage cooling channels, with dimensional tolerance CT11-12 (ISO 8062) for critical features. We also provide optional shot blasting to achieve Ra ≤6.3μm, improving paint adhesion and reducing aerodynamic noise for engine components.
Parameter | Specification |
Material Standard | ASTM A48 Grade 60, EN-GJL-300 |
Tensile Strength | 414MPa (60ksi) |
Hardness Range | HB 230-260 |
Damping Loss Factor | ≥0.02 (ASTM E797) |
Max Continuous Operating Temperature | 400°C |
Dimensional Tolerance | CT11-12 (ISO 8062) |
As-Cast Surface Finish | Ra ≤12.5μm |
Internal Porosity | ≤2% |
Static Load Capacity | Up to 15 tons |
As a trusted supplier for industrial manufacturing enterprises, we bring unmatched expertise in damping gray iron casting technology. Our proprietary graphite morphology control increases damping capacity by 20%, validated through modal analysis (FEA) for optimal vibration reduction. We operate in-house thermal cycling chambers (-40°C to 600°C) to guarantee dimensional stability for temperature-sensitive applications, providing detailed test reports for business clients. We offer fully custom alloy formulations, adjusting silicon and manganese content to meet specific thermal and damping requirements, with an MOQ of 50pcs for custom material adjustments. Our sustainable practices, including 100% recycled molding sand and water-based coatings, align with EU Ecolabel and ISO 14001:2015 standards, supporting our partners’ sustainable development goals.
Our engine gray iron casting parts are widely used across industrial sectors, with core applications including industrial engine systems for cylinder heads, engine blocks, and exhaust manifolds (SAE J1999 compliant), efficiently damping vibration and dissipating heat for diesel engines and compressors. They are also the preferred choice for high-temperature pump systems, including volutes, impellers, and casings for high-temperature water pumps (ISO 2858 compliant), resisting scale formation and thermal stress. Additionally, our castings are used in industrial gearbox housings and covers, reducing noise emission by 15% compared to steel counterparts and meeting ISO 14001:2015 compliance.
Our gray iron engine castings are manufactured to strict ASTM A48 Grade 60 and EN-GJL-300 standards, with adjustable formulations to meet other regional or industry-specific standards based on client requirements.
Yes, our resin sand casting process supports components with complex internal structures, and our engineering team provides collaborative design support to optimize casting performance.
Our standard MOQ for off-the-shelf grades is 100pcs, while custom alloy formulations have an MOQ of 50pcs, with flexible arrangements for both large-scale and small-batch industrial clients.
We offer as-cast finish, shot blasting, bitumen coating (100μm), and zinc-rich primer (70μm), with custom treatments to meet specific corrosion protection requirements for harsh environments.
