Southeast Asia features a year-round hot and rainy climate with high salt spray, imposing strict requirements on the corrosion resistance and moisture resistance of construction steel. Galvalume Steel Coils, with the advantages of an alloy coating composed of 55% aluminum, 43.4% zinc, and 1.6% silicon, have become the preferred material in the local construction, steel structure, and home appliance industries.
Recently, GNEE STEEL successfully completed the production, inspection, packaging, and maritime delivery of a batch of galvalume steel coil orders. Throughout the process, we strictly followed international standards and Southeast Asian market access requirements, delivering the goods to the customer's designated port on time and in accordance with quality standards. This has been highly recognized by the customer and further consolidated our reputation in the Southeast Asian galvalume steel coil market.
I. Case Background: Precisely Matching the Core Needs of Southeast Asian Customers
The customer for this cooperation is a well-known steel structure enterprise in Southeast Asia, mainly engaged in the design and construction of industrial plants and civil buildings. It has long purchased galvalume steel coils for roof and wall enclosure structures. The customer learned about GNEE STEEL's galvalume steel coil products through the official website and put forward clear product specifications and delivery requirements based on its project needs.
The core demands focused on three points: first, the products must be suitable for the local marine climate with high salt spray and high humidity, and the corrosion resistance must meet the standards; second, they must strictly comply with the Indonesian SNI certification and ASTM A792 international standards to ensure smooth customs clearance; third, the entire process from production to port delivery must be completed within 35 days to ensure the project construction progress.
In response to the customer's needs, we recommended conventional specifications of galvalume steel coils suitable for the Southeast Asian market, clarified the product parameters, maintained transparent communication throughout the process, eliminated the customer's concerns about product quality, delivery cycle, and customs clearance procedures, and quickly reached a cooperation consensus and signed a formal order.
Product Specifications: DC51D+AZ, thickness 0.8mm, width 1250mm, coating weight AZ150 g/m² (mainstream specification in the Southeast Asian construction field)
Delivery Destination: Semarang Port, Indonesia (customer-designated port, an important logistics hub for steel deep processing in the region)
Delivery Cycle: 35 days (including production, inspection, packaging, customs declaration, and maritime transportation)
Core Requirements: Compliance with ASTM A792M standard, salt spray test ≥4500 hours, suitable for high salt spray environment, and provision of complete customs clearance documents
II. Full-Process Implementation: Strictly Control Every Link to Ensure Smooth Delivery
The delivery of this order followed GNEE STEEL's standardized operation process throughout. From raw material procurement, production and processing, quality inspection, to packaging, customs declaration, and maritime transportation, each link was assigned to a dedicated person, with full traceability to avoid omissions in any link and ensure the safe and on-time delivery of goods.
1. Raw Materials and Production: Adhere to Standards to Ensure Core Product Performance
To adapt to the high salt spray environment in Southeast Asia, we strictly selected cold-rolled low-carbon steel that meets GB/T 2518 standards as the base material to ensure the purity and toughness of the base material, avoiding hidden dangers such as coating peeling and rust from the source.
The entire production process adopted the ISO 9001 quality management system, with coating thickness and surface flatness tested every 2 hours, and production parameters adjusted in a timely manner to ensure the quality consistency of each steel coil. The production cycle of this order was 18 days, efficiently completing the production task of 320 tons of galvalume steel coils with no unqualified products.
2. Quality Inspection: Multi-Dimensional Testing to Ensure Compliance with International Standards
After the completion of product production, we launched a full-process quality inspection, inviting a third-party testing agency (SGS) to participate in the whole process to ensure that the products meet the ASTM A792M international standard and the local market access requirements in Indonesia, avoiding problems of inconsistent customs declaration.
3. Packaging and Reinforcement: Adapt to Maritime Transportation Needs to Eliminate Transportation Loss
The packaging details strictly followed the ASTM A700 international packaging standard, as follows:
Inner Layer: 1 layer of waterproof kraft paper + 2 layers of VCI vapor phase anti-rust paper, releasing volatile anti-rust factors to isolate moisture and salt spray with a validity period of up to 6 months; both ends of the steel coil were sealed with circular anti-rust end caps to cover all exposed surfaces
Middle Layer: 0.12mm thick high-toughness PE waterproof film, fully wrapped and heat-sealed, with interface sealing strength ≥5N/15mm, forming a closed waterproof space that can resist marine heavy rain and salt spray erosion
Outer Layer: Wrapped with 0.8mm thick cold-rolled thin steel plate, fixed with rivets; the bottom adopted fumigated solid wood pallets that meet the ISPM 15 international quarantine standard, with a load-bearing capacity of ≥3 tons, moisture-proof and anti-deformation; each coil was fixed with 4 high-strength galvanized iron belts, and rubber pads were placed at the contact points to avoid scratching the coating
After packaging, a sufficient amount of desiccant was placed in each container to control the internal relative humidity below 60%, and moisture-proof labels were posted on the inner wall of the container to further reduce the risk of condensation during maritime transportation.
III. Customer Feedback: Reliable Quality, Efficient Delivery, Looking Forward to Long-Term Cooperation
After the goods were successfully delivered, the customer conducted a random re-inspection of the delivered galvalume steel coils. The re-inspection results showed that the product quality and specifications fully met the order requirements, the packaging was intact without damage, and there were no rust, coating peeling and other problems, which were completely suitable for the local high salt spray service environment.
Customer Feedback: "The galvalume steel coils of GNEE STEEL have stable quality, complete test reports, and a smooth customs clearance process. They were delivered ahead of schedule, effectively ensuring the progress of our project."
