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Gray Iron Casting Series 1
JHshukong
Jinhong is a professional foundry specializing in high-quality gray iron casting parts for general industrial and conveying applications. Our lubricious gray iron casting components are cast from premium ASTM A48 and EN-GJL grade gray iron, leveraging the natural lamellar graphite structure of gray iron to deliver exceptional self-lubricating performance, wear resistance, and machinability at a competitive cost. These castings are the ideal cost-effective solution for business clients in general machinery, conveying equipment, automotive aftermarket, and construction equipment sectors, with support for both standard in-stock parts and full custom OEM/ODM production.
The unique flake graphite structure of our gray iron castings acts as a built-in solid lubricant, reducing the friction coefficient to 0.2-0.3 (ASTM D1894 compliant), minimizing wear and extending service life in dry or lightly lubricated conveying and general machinery applications. This inherent lubricity eliminates the need for frequent maintenance and reduces operational costs for our industrial purchasers.
Our gray iron castings are available in Grade 40 (HB 180-210) for low-load applications and Grade 50 (HB 210-240) for moderate-load scenarios, with tensile strength ranging from 276MPa to 345MPa, and consistent impact resistance of 10-15J for reliable performance in static and low-vibration operating environments. The excellent machinability of gray iron reduces post-casting processing time by up to 30%, lowering overall production costs for your projects.
We use advanced green sand molding technology for our general purpose gray iron castings, with a mold life of over 500 cycles for high-volume production, supporting components with a maximum weight of 2000kg. Our optimized casting process reduces material waste by 20% compared to precision casting methods, enabling us to offer competitive bulk pricing for enterprise buyers without compromising quality.
Every batch of our gray iron castings undergoes strict inspection and testing, with a defect rate ≤1.5% thanks to our proprietary mold coating technology that eliminates metal penetration and improves surface finish. Our production facility is certified to ISO9001:2015 and IATF 16949 for automotive components, with all materials compliant with ASTM and SAE international standards.
Parameter | Value |
Product Name | Lubricious Wear Resistant Gray Iron Casting Parts |
Core Material Grades | ASTM A48 Grade 40, ASTM A48 Grade 50, EN-GJL-250, Custom High-Silicon Gray Iron |
Primary Casting Method | Green Sand Molding Casting |
Dimensional Tolerance | CT12-CT13 (ISO 8062), Custom Machined Tolerance Available |
Core Certifications | ISO9001:2015, IATF 16949 (Automotive Parts) |
As-Cast Surface Roughness | Ra ≤25μm, Machined Finish Ra ≤6.3μm Available |
Wall Thickness Range | 5mm to 50mm, Custom Design Supported |
Maximum Component Weight | 2000kg |
Heat Treatment Options | Stress Relief Annealing, Custom Heat Treatment |
Order Support | Standard In-Stock Parts, OEM/ODM Custom Bulk Orders |
With over 30 years of specialized expertise in gray iron casting, Jinhong is the trusted supplier for business clients worldwide seeking cost-effective, high-quality cast components. We hold a leading position in cost efficiency, with our gray iron castings priced 25% lower than equivalent ductile iron parts for non-impact applications, achieved through our high-yield green sand casting process and 90% sand recycling rate. We maintain an inventory of over 300 standard part numbers including flanges, brackets, and pulleys, enabling same-day shipping for urgent orders, with a 10-day lead time for standard grade custom orders and 20-day lead time for custom alloy formulations. Our in-house engineering team provides full design support to optimize your components for performance and cost efficiency.
Our gray iron casting for conveying equipment is widely used for conveyor rollers, gearbox housings, motor frames, and pulley wheels in food processing, material handling, and general industrial applications, with exceptional wear resistance for continuous operation.
We manufacture brake drums, clutch housings, and differential cases compliant with SAE J431 standards, delivering OEM-quality performance at 20% lower cost than forged alternatives for the automotive aftermarket sector.
Our gray iron castings are used for pump casings and transmission components in compact construction machinery such as mini-excavators, withstanding moderate vibrations and loads in rugged operating environments.
We produce custom gray iron components for agricultural equipment, including gear teeth, pump housings, and motor bases, designed for reliable performance in low-vibration, moderate-load agricultural applications.
Gray iron features a flake graphite structure that delivers superior self-lubricating performance, machinability, and vibration damping at a lower cost, making it ideal for moderate-load, low-impact applications. Ductile iron offers higher impact resistance and tensile strength for high-load, high-impact scenarios, at a higher price point.
Yes, we maintain an inventory of over 300 standard gray iron part numbers including flanges, brackets, pulleys, and motor bases, enabling same-day shipping for urgent orders. We also support full custom design and production for non-standard components.
We offer a 10-day lead time for custom orders using standard Grade 40 and Grade 50 gray iron, and a 20-day lead time for custom alloy formulations or complex design requirements.
