Hongliang

The company adheres to a business philosophy of surviving through quality, growing together with our customers, and winning the market through integrity. We always put customer interests first and strive for customer satisfaction, wholeheartedly providing high‑quality castings. With a scientific and sincere approach, we earn broad recognition from our clients and enjoy their strong approval and trust.

Hongliang Boat Technology: Pioneering the Future

A company that manufactures and processes nonferrous metals (copper castings, aluminum castings)

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Applications

Marine industry

Defense

Mechanical

PRODUCTS

Lead bronze alloy, high-lead bronze alloy, bearing copper alloy

Babbitt bearing bushing, finished product QPb25-5

QPb25-5 is a multi-component copper alloy with copper as the matrix, containing 25% lead and 5% tin. It is produced by centrifugal casting, resulting in a microstructure that features finely dispersed free‑lead phases and tin‑based solid‑solution strengthening phases. This alloy exhibits excellent friction‑reducing properties, anti‑seizure performance, and corrosion resistance. Under boundary lubrication conditions, the lead phase forms a microscopic lubricating film, significantly lowering the coefficient of friction and endowing the bearing liner with superior self‑lubrication and anti‑adhesive capabilities, making it particularly suitable for high‑speed, heavily loaded operating conditions in the chemical industry where stable oil films are difficult to establish. The addition of tin refines the grain structure, enhancing the alloy’s strength and fatigue resistance, thereby effectively extending the service life of the bearing liner under cyclic loading. Moreover, this material demonstrates outstanding resistance to sulfuric acid, dilute hydrochloric acid, and various organic solvents, providing long‑term protection against corrosive chemical media and ensuring dimensional accuracy and mating stability in pumps, compressors, agitators, and other chemical‑process equipment. It is precisely the synergistic effect of its wear resistance, corrosion resistance, thermal stability, and self‑lubricating characteristics that makes QPb25‑5 bearing liners an ideal choice for replacing vulnerable components in industries such as chemical fibers and fine chemicals, while improving the continuous operational reliability of equipment and substantially reducing the frequency of shutdowns for maintenance.

Babbitt bearing QPb25-5

We manufacture and process nonferrous metals (copper castings, aluminum castings) as well as ferrous metal castings.

Bushing QPb20-5

We manufacture and process nonferrous metals (copper castings, aluminum castings) as well as ferrous metal castings.

Bushing QPb15-8

We manufacture and process nonferrous metals (copper castings, aluminum castings) as well as ferrous metal castings.

Bushing QPb15-7

This product is specifically designed for Austrian VOESTALPINE die‑casting machines. It has undergone preliminary machining and is now in the finishing stage, ready for final assembly. The material used is high‑lead bronze QPb15‑7 (containing 15% lead and 7% tin), a grade commonly employed in European die‑casting equipment. This alloy offers excellent resistance to galling, superior friction‑reducing and wear‑resistant properties, and outstanding fatigue strength. Under heavy‑load and high‑temperature operating conditions, it maintains dimensional stability, thereby effectively extending equipment maintenance intervals.

hongliang

Hongliang Boat Technology: Pioneering the Future

Nantong Hongliang Boat Technology Co., Ltd.

A smart manufacturing enterprise specializing in the processing of non-ferrous metals (copper castings and aluminum castings).

Nantong Hongliang Boat Technology Co., Ltd. is a manufacturer and processor of nonferrous metals, specializing in copper and aluminum castings. Located in the Yangtze River Delta—one of China’s six major metropolitan regions—the company enjoys a prime geographical position: it faces the Yellow Sea to the east, adjoins the Sutong Bridge to the south, borders Nantong Port to the west, and abuts the Xinchang Railway to the north. It lies just a few kilometers from Nantong Airport and overlooks Shanghai and Suzhou across the river, offering exceptional accessibility and convenient, efficient transportation links.

Our company’s factory covers a total area of 5,000 square meters, with a casting workshop spanning 3,000 square meters and a machining workshop covering 2,000 square meters. We produce centrifugally cast friction‑plate components in copper, with diameters up to 2.5 meters, and employ a cutting-edge centrifugal casting process for high‑lead bronze castings. Our copper bushings can be cast in weights of up to 2 tons. Equipped with a full range of advanced production machinery and robust manufacturing capabilities, we achieve an annual output value of approximately RMB 40 million. Our facilities include medium‑frequency induction furnaces, horizontal split‑mold core‑shooting machines, CNC lathes, Heraeus pre‑furnace analyzers, and Italian GNR spectrometers, along with a comprehensive suite of testing and inspection equipment.