Import Casting — Buy in Bulk from Supplier in China

Dalian Shipbuilding Import Export Company supplies gray iron and ductile iron castings for industrial machinery, automotive components, and heavy equipment frames. The castings are produced to dimensional tolerances of ±0.3% on critical surfaces, with surface roughness typically ranging from Ra 3.2 to Ra 6.3 micrometers. Material composition for gray iron follows ASTM A48 Class 20 to 35, while ductile iron adheres to ASTM A536 Grade 60-40-18, with carbon content between 3.0% and 3.8% and silicon content between 1.8% and 2.8%.

The castings are made using sand molding and lost foam processes, with core materials selected to minimize internal defects. No external coatings are applied unless specified by the buyer, and machining allowances are预留 at 1.5mm to 3mm per surface. Typical weight ranges from 2kg to 150kg per piece, with wall thicknesses between 5mm and 25mm. These specifications align with standard practices in China’s heavy machinery casting sector, where dimensional repeatability and low porosity are prioritized over surface polish.

Buyers in the automotive, marine, and construction equipment industries source these castings for gear housings, pump bodies, and structural brackets. The supplier ships under FOB Dalian or CIF terms, with standard packaging in wooden crates lined with anti-rust paper. Minimum order quantities are not stated in the listing but are typically negotiated per casting size and complexity. Buyers should request test reports for tensile strength and hardness prior to bulk shipment.

Dalian Shipbuilding Import Export Company is a trading entity based in Dalian, Liaoning, with a registered office at Rm 2208, Dalian World Trade Center. The listing identifies it as an imported supplier with harbor-tier trust signals, indicating verified export activity but no public factory ownership or production data. The supplier does not disclose annual turnover, workforce size, or client names. Its profile shows no response rate or average reply time, suggesting limited direct buyer engagement.

The company acts as an intermediary for casting products sourced from third-party foundries in northeast China. It does not claim to own or operate a foundry, nor does it list certifications, production capacity, or quality control procedures beyond what is implied in the product description. Buyers should treat this as a sourcing agent, not a manufacturer. All technical claims must be verified through independent testing or supplier-provided documentation.