Import Aluminum Coil — Buy in wholesale FOB from Supplier in China

Zhengzhou Joda Technology Co., Ltd supplies aluminum coil in 3003 and 5052 alloy grades, positioned within the Al-Mn and Al-Mg alloy systems respectively. The 3003 grade offers a balanced combination of moderate strength, excellent workability, and very good resistance to atmospheric corrosion, making it the default choice for roofing, insulation, and general sheet-metal fabrication. Grade 5052, with its higher magnesium content, delivers superior fatigue strength and salt-water corrosion resistance, suiting marine fittings, fuel tanks, and structural panels where load-bearing capacity matters. The supplier's concise product description, "Aluminum Alloy In Roll", suggests a focus on rolled-coil supply rather than downstream fabrication, though buyers must confirm exact thickness range, width capability, and temper availability directly.

The Al-Mn system of grade 3003 is non-heat-treatable and derives strength from cold working, with manganese adding solid-solution strengthening without the cost premium of magnesium. Typical applications include heat exchangers, cooking utensils, and chemical equipment where formability outweighs peak strength. The Al-Mg system of 5052 contains 2.2-2.8 percent magnesium by weight, giving it the highest strength of the non--heat-treatable 5000-series alloys while retaining good weldability and resistance to cracking. Both grades respond well to anodising, though 5052 yields a clearer, more uniform anodic film, whereas 3003 can show slight streaking if manganese segregation is present. Surface finish options from the mill usually encompass mill finish, bright anodising quality, or brushed finishes for decorative exposure.

End-users span building-materials distributors, automotive tier-one suppliers, appliance manufacturers, and shipyard outfitters. Roofing contractors favour 3003 in painted or plain mill finish for standing-seam and corrugated profiles, while 5052 dominates trailer siding, bulkhead panels, and salt-exposure cladding. Importers should clarify whether Zhengzhou Joda stocks slit-width master coils or mills to width, as this determines minimum order quantities and lead times. Standard export packing for Chinese aluminum coil centres on eye-to-sky palletisation with moisture-barrier film, but the buyer should specify VCI grade, desiccant quantity, and strapping pattern to match their warehousing climate and handling equipment.

Zhengzhou Joda Technology Co., Ltd is located at Shenglong Plaza, Zhengzhou 450016, in Henan Province, a central Chinese industrial hub with strong rail connectivity to Qingdao, Tianjin, and Lianyungang ports. The supplier holds a harbor trust tier, indicating verified business registration and profile completeness, but records a 0.00 percent response rate with zero average response hours. This lack of response metrics means prospective buyers should anticipate delayed communication and plan sourcing timelines accordingly, perhaps initiating contact through multiple channels to gauge actual responsiveness.

The company's offering is summarised as "Aluminum Alloy In Roll" with grades 3003 and 5052 targeted at roofing, HVAC, automotive, and construction sectors. No workforce data, annual production volume, specific quality certifications, or client references appear in the available profile. The custom specification mentions HS code 7606, flexible MOQ, and CFR or CIF pricing for bulk orders, but these are presented as general trade possibilities rather than committed terms. Buyers should request a formal quotation with explicit Incoterms, minimum order quantities, and lead times, and verify whether Zhengzhou Joda operates as a trading company or direct mill to understand accountability for quality claims.