DX51D+AZ Aluzinc Steel Coil: Coating and Appearance Choices for Folded Edge Guards
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DX51D+AZ is an aluminium-zinc alloy coated steel coil commonly used for folded and lapped equipment guard panels. Purchasing should distinguish substrate and coating designations, and specify surface condition, folded-edge appearance and protective film to avoid mixing galvanized with aluminium-zinc coated steel. Jiangsu Gaozhen handles enquiries by grade, dimensions and processing requirements.
DX51D+AZ: material and applications
In DX51D+AZ, DX51D designates the substrate grade and +AZ indicates an aluminium-zinc alloy coating; it is not the same designation as +Z (zinc) or +ZA (zinc-aluminium). Purchase orders should state both the substrate grade and the coating code, not just “aluzinc” or “silver sheet”, so the supplier can confirm the product. A similar silver appearance does not mean the products are interchangeable; coating compositions differ, and behaviour at folded edges and laps should be assessed for the specific application. For equipment guard panels, also specify whether the surface is painted, whether a protective film is applied, and the appearance requirements at folded edges. The effects of humid environments, exposed cut edges and installed fasteners should be included in the service conditions and confirmed by both parties.
Material and Processing for Folded Edge Guards
Equipment guard panels often use folded and lapped constructions, with processing typically including uncoiling, shearing, bending, pressing or riveting. When specifying DX51D+AZ, substrate thickness and coating weight are determined by the part drawing and service environment; bend radius, lap width and fastener positions should be marked on the drawing. Coating is discontinuous at cut edges and punched holes, so edge protection should be assessed for humid or outdoor installation. If adhesive or sealant is used at laps, confirm compatibility with the coating. For parts with high folded-edge appearance requirements, state acceptable levels of creasing and coating scratches at ordering.
Purchasing Points and Rationale
When purchasing DX51D+AZ, the order should state the substrate grade, coating code, surface condition (painted or not, protective film or not), dimensions and folded-edge appearance requirements. The rationale is that the coating code determines the material category, surface condition affects appearance after folding and lapping as well as subsequent painting, and protective film relates to processing scratches and when it should be removed. If only “aluzinc sheet” is written, the supplier may deliver another coating code that is difficult to verify on receipt. For guard panels requiring folding and lapping, a surface quality description can be requested with each lot, but similar appearance should not be used as a basis for substitution. For humid environments or fastener locations, service conditions should be clarified before purchase so both parties can confirm how cut edges and laps are treated.
Is Aluminium-Zinc Coating Aluminium Sheet?
No. DX51D+AZ uses steel as the substrate, and +AZ is an aluminium-zinc alloy coating on the surface; the material body is still steel, not aluminium sheet. Purchasing should verify the steel coil by substrate grade and coating code, and it should not be used as aluminium sheet merely because the surface is silver. Folding, lapping and fastener installation should follow steel processing practice, while paying attention to coating condition at cut edges and bends.
DX51D+AZ dimensions and supply enquiry
The Gaozhen DX51D+AZ product page lists these catalogue dimensions: Thickness range: 0.25-3.0 mm; Width range: 1000/1250/1500 mm. These values support specification discussions; confirm the required combination of gauge, width and condition for the material.
Discuss substrate, coating, surface condition and blank dimensions separately, then coordinate stock with cut-to-length, slitting or forming needs.
Product details: View related product details
Products and processing enquiries at Jiangsu Gaozhen
Jiangsu Gaozhen Trading Co., Ltd. handles trading and processing coordination for steel sheet, coil and related metal materials. Customers can find a grade and discuss drawings, service conditions and manufacturing requirements.
The product range includes cold-rolled, hot-rolled, galvanized and other coated, pickled, spring-steel, carbon-steel and stainless sheet or coil, plus zinc-titanium / zinc-copper-titanium and copper-titanium alloys. For a mixed-material project, list DX51D+AZ and other grades as separate items with their own specifications.
Product catalogue: https://gaozhenmetal.com/en/products/
Enquire about DX51D+AZ at Jiangsu Gaozhen
For a DX51D+AZ enquiry, prepare the following information so the business team can review supply and processing against the actual component.
Material and dimensions: DX51D+AZ, drawing revision or specified requirements, gauge and tolerance, width, and cut length for sheets.
Project conditions: full substrate designation and coating suffix, coating and surface requirements, forming and subsequent finishing.
Purchase plan: trial or batch requirement, quantity, delivery destination and requested timing.
Choose “Send enquiry” in the floating assistant, complete product, dimensions, quantity and contact details, confirm consent and submit. A receipt reference confirms that the form has been saved in Gaozhen’s website inbox. A chat message alone is not a submitted enquiry form.
Alternatively, contact Wang Dawei at +86 13861182855 or dawei5373@126.com. Mention this DX51D+AZ article to help identify the product under discussion.
The business team confirms pricing, available specifications, stock and delivery against the enquiry.