DX51D+AZ
Widely requested commercial forming base designation in legacy EN-style AZ supply. Confirm the metallic coating standard and edition expressly in the contract.
Global Steel Supply & Processing
Color-Coated 55% Al-Zn Substrate · AZ Coating · RAL Colors · PE / SMP / HDP / PVDF
BASE STEEL / AZ / PAINT / COLOR / WIDTH
Buy PPGL steel coil for roofing and cladding production with the substrate grade, aluminum-zinc coating mass, top and back paint, dry-film thickness, RAL color and coil dimensions matched to your project. Get a quotation based on the actual service environment and forming process.
Match the substrate, metallic coating, color finish and coil format before evaluating factory pricing.
| Parameter | Procurement specification |
|---|---|
| Product | PPGL Steel Coil — prepainted 55% aluminum-zinc alloy-coated steel strip |
| Base metal | Commercial, forming or structural steel grade with hot-dip 55% aluminum-zinc coating; grade verified by its own substrate standard |
| Common base grade names | DX51D+AZ (specified contractual edition), SGLCC under JIS G 3321, or an ASTM A792 grade selected for the application |
| Organic coating standard | EN 10169:2022 or ASTM A755/A755M-18(2024); JIS G 3322:2024 for the Japanese prepainted 55% Al-Zn product |
| Metallic coating standard | ASTM A792/A792M-25a Type 1, JIS G 3321:2022, or an explicitly agreed historical EN designation and edition |
| AZ coating mass | Illustrative order options AZ100 / AZ120 / AZ150 / AZ185, depending on substrate standard and mill offering; total both sides, g/m² |
| Paint system | PE, SMP, high-durability polyester (HDP) or PVDF-based system; resin chemistry and performance verified per supplier data |
| Inquiry BMT range | 0.30–1.20 mm for initial quotation screening only; final range and tolerance subject to mill confirmation |
| Inquiry width range | 600–1,250 mm for initial quotation screening only; confirm actual coated width and slit-width restrictions |
| Illustrative top dry film | 20–25 μm total organic top-side thickness for a basic enquiry example; confirm primer / topcoat build |
| Illustrative reverse film | 5–12 μm back-side total dry film; coating and protection selected for exposure and handling |
| Color & gloss | RAL reference plus approved sample, gloss, texture and permitted color variation |
| Coil requirements | Inside diameter, net coil mass, maximum OD, edge type, wrapping and destination loading constraints |
Published ranges above are preliminary procurement examples, not universal mill guarantees. Every quotation and MTC must reference the actual grade, standard edition, dimensions and agreed coating specification.
The color surface is the final layer; the metallic coating beneath it defines an important part of the complete system.
The selected PE, SMP, HDP or PVDF-based color finish provides appearance and coating-dependent exterior protection.
A compatible primer and pretreatment support adhesion and selected coating performance after forming.
Hot-dip aluminum-zinc-silicon coating is present on both faces of the steel strip; coating mass is specified apart from the paint.
Commercial, forming or structural-grade steel supplies the mechanical properties needed for roll-forming and project loads.
Back-side metallic coating and a specified primer / backcoat system help protect the reverse face during service and handling.
Layer descriptions are a procurement guide rather than a mill cross-section drawing. Ask for the actual coating schedule and coating weight certificate.
The 55% Al-Zn surface can be paired with different steel grades; grade selection controls strength and formability.
Widely requested commercial forming base designation in legacy EN-style AZ supply. Confirm the metallic coating standard and edition expressly in the contract.
General-use 55% Al-Zn alloy-coated steel to the selected JIS G 3321 edition; compatible paint delivery requirements belong on the PPGL order.
Use the precise CS, FS, DS or structural grade/strength class specified for forming, roll-forming and design loads.
Choose minimum yield strength and profile-forming requirements for structural roofing or wall cladding rather than assuming every PPGL coil has the same steel grade.
Send the roof profile, bend radius, thickness, coating preference and tonnage for a grade-matched quotation.
Select paint chemistry and thickness to meet the actual weather, appearance and forming specification.
Polyester. Widely specified for economical color-coated sheet. Confirm actual RC/Ruv categories, color stability and processing properties for the offered grade.
Silicone Modified Polyester. An option for coatings engineered for improved exterior performance; specifications depend on paint supplier and system.
High-Durability Polyester. Used where higher weathering performance is required, subject to a documented system and suitable environmental classification.
Fluoropolymer-Based. Often considered for color/gloss retention requirements; verify resin content, primer, film build and compatibility with service conditions.
Organic paint type alone cannot establish a guaranteed lifetime. Request the supplier’s declared outdoor corrosion class (RC), UV resistance class (Ruv), test evidence and use conditions where relevant to EN 10169:2022.
Coordinate the visible surface with architectural plans and downstream roll-forming requirements.
Physical RAL samples and production finish panels take priority over on-screen color appearance.
Use a RAL reference as the starting point for color-coated Galvalume coil. For repeat orders, request approval against a physical control sample and agree an acceptable variation before manufacture.
Digital swatches are illustrative only and are not color-matched proof. Confirm final shade, gloss and finish on physical samples from the selected coating line.
Separate substrate gauge, aluminum-zinc coating mass and organic paint-film build in your specification.
Both-side nominal metallic coating mass. Availability and designation must be checked against the ordered substrate standard.
Both-side nominal metallic coating mass. Availability and designation must be checked against the ordered substrate standard.
Both-side nominal metallic coating mass. Availability and designation must be checked against the ordered substrate standard.
AZ designations refer to aluminum-zinc alloy coating mass over both faces combined when defined on this g/m² basis. They are distinct from bare metal thickness and from total organic film thickness.
An enquiry might use 25 μm total top-side and 10 μm reverse-side dry film as an example; this is not an automatic specification for every PPGL order.
Match the paint system and metallic coating to each project’s environment, profile and fabrication method.
Specify effective cover width and bend geometry with the coil material to verify tooling compatibility.
Match coating system, gloss and exposure class to the project location.
Coils supplied for corrugated or trapezoidal profiles, subject to forming radius and coating flexibility.
Color-coated sheet for industrial wall panels, facades and architectural exterior details.
Color-matched accessories, gutters and formed sheet profiles using suitable substrate thickness.
Roof and wall panel material for logistics facilities and industrial buildings, by design condition.
Coated panel feedstock where humidity, fertilizers and site-specific corrosion exposure are considered.
Full master coils or slit coils for profiling plants, with declared dimensions and process conditions.
Send your roll-forming drawing, expected bend radii, approved color, AZ mass and annual/project consumption.
Estimate available coil length while accounting for both metallic aluminum-zinc and organic color coating masses.
Enter base metal thickness, width, total both-side AZ coating mass, total top/back dry-film build and net coil mass. The calculation adds approximate metallic and paint coating masses to the steel base.
Approximate kg/m = [BMT(mm) × width(mm) × 0.00785] + [(AZ(g/m²) + (top μm + back μm) × 1.30) × width(mm) / 1,000,000]. The paint density assumption is 1.30 g/cm³; the metallic coating is entered by its measured/declared mass, so no AZ density assumption is needed.
Planning estimate only; actual steel density, organic paint density, gauge tolerances and coating masses can vary. Packaging, coil cores and transport tare are excluded.
A practical production overview to support inspection planning and informed procurement.
For PPGL, the hot-dip aluminum-zinc layer and its surface preparation are central to paint adhesion. Coating steps then establish color, top/back film build and curing quality. Request process capability and inspection evidence for your precise material system.
Select and inspect the 55% Al-Zn-coated substrate, grade, thickness, surface and specified coating mass.
Clean and pretreat the strip before compatible primer application and controlled curing.
Coat top and reverse faces with the specified resin systems, film builds, gloss and color.
Cure, check coating quality, rewind, identify and protect coils for dispatch.
Get a quote built around your real grade, coating, finish and loading requirements—not simply a color and gauge.
Our wider steel operations provide manufacturing and procurement coordination. Company-wide capacity figures do not imply PPGL-only output.
Align coating mass, paint system, approved color and coil geometry before confirming pricing.
Request the required MTC, coating tests, visual inspection and traceable coil identification.
Confirm order lots, loading conditions, moisture protection, documentation and shipping terms.
Request the appropriate delivery form for your production line while preserving the painted surface.
Widths and edge finish for roofing or wall panel lines, with confirmed slit-width tolerances.
Prepainted sheets cut to dimensions when project needs are better served by flat sheet deliveries.
Film application where compatible with the paint, profile shape, storage and removal conditions.
Provide the roll-forming drawing and critical bends to confirm material flexibility before ordering.
Share your width schedule, coil quantity, surface protection needs and unloading equipment so processing can be confirmed with the quote.
The paint coating standard and base-metal coating standard serve different purposes and should both be recorded.
| Reference standard | Procurement role |
|---|---|
| EN 10169:2022 | Continuous organic coated steel flat products; coating-system, appearance and declared performance requirements. |
| ASTM A755/A755M-18(2024) | Prepainted hot-dip metallic-coated steel for exterior-exposed building products, including Al-Zn substrates. |
| ASTM A792/A792M-25a | Hot-dip 55% aluminum-zinc alloy-coated steel substrate; match Type 1 Al-Zn-Si when specifying conventional AZ material. |
| JIS G 3322:2024 | Prepainted 55% Al-Zn alloy-coated sheet and strip, including relevant corrugated product coverage. |
| JIS G 3321:2022 | Unpainted 55% Al-Zn alloy-coated sheet and strip for substrate specification and related steel grade requirements. |
EN 10346:2026's publicly listed DX51D coating symbols omit +AZ; do not assume a commercial DX51D+AZ order automatically conforms to that edition. Keep an agreed edition or choose a properly matched ASTM/JIS substrate reference.
Build the acceptance checklist into the purchase order to avoid disputes over thickness, shade or coating durability.
Confirm testing and certificates at RFQ stage. For exterior cladding, corrosion and UV resistance classification may be needed in addition to routine mass, thickness and appearance checks.
Specify the steel, AZ coating, organic coating and coil geometry in a consistent purchase description.
State grade, standard and edition, BMT, width and applicable tolerances.
Select the metallic coating designation and total both-face mass.
Top and reverse paint systems, primer, dry film thickness, RAL/physical sample, gloss and requested RC/Ruv performance.
Coil inside diameter, mass per coil, edge condition, total tonnage, protective wrapping and destination.
Include application environment, forming drawing, MTC expectations, packaging and destination in addition to coating details.
Color-coated inventory is grade-, width-, paint- and color-specific, so availability is checked against your order.
Request single-color or multiple-color coil lots by total quantity and required delivery milestones.
Confirm available sizes, colors, AZ mass and paint systems for your specific specification; no blanket stock promises.
Arrange physical color and gloss approval before large production orders or repeat color matching.
Discuss packing lists, certificates, inspection hold points, shipment windows and Incoterms.
Include each RAL color, exact gauge, AZ mass and requested tonnage in your inquiry.
Confirm surface protection and receiving-site limitations alongside your material specification.
The paint surface and steel edges require protection from moisture, abrasion and handling damage. Packing depends on coil weight, loading equipment, travel distance and import requirements.
Compare PPGL with PPGI, unpainted Al-Zn-coated coil and finished roof-sheet products.
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Answers covering aluminum-zinc coating designations, paint selection, international standards and project ordering.
PPGL means prepainted Galvalume steel coil. It combines 55% aluminum-zinc alloy-coated steel with a factory-applied organic color-coating system.
PPGL has an aluminum-zinc alloy metallic-coated substrate. PPGI has a zinc galvanized substrate. Both may be coil coated, but metallic coating designations and exposure suitability differ.
AZ150 denotes an aluminum-zinc coating-mass designation corresponding to 150 g/m² over both sides under the applicable designation system. Confirm the product standard and sampling method.
Provide the desired RAL code and a physical reference for approval. Final color, gloss and acceptable variation are agreed for the actual coating formulation.
Select paint and AZ mass against the real marine exposure, salt deposition, condensation, cut-edge detailing and supplier test declarations. No resin name or coating mass guarantees performance in every coastal location.
State whether 0.50 mm is BMT or total coated thickness. Steel thickness, AZ metallic layer and organic film have separate quantities in the specification.
Top and reverse dry-film thicknesses are defined in micrometers, including primer where relevant. Values like 25 μm top and 10 μm reverse are quotation examples, not universal standards.
Specify a compatible set: for example EN 10169 for organic coating and ASTM A792 for 55% Al-Zn substrate, or JIS G 3322 with the relevant JIS substrate requirements. Confirm editions on the purchase contract.
The publicly available 2026 EN 10346 DX51D coating list omits +AZ. State an expressly agreed applicable substrate standard and edition instead of assuming automatic compliance.
Yes, when the steel grade, coating adhesion, paint flexibility and profile geometry are compatible. Share drawing and bend radii if your profile is demanding.
Estimate steel mass per meter from BMT and width, add AZ coating mass and organic film mass, then divide net coil kilograms by kg per meter. Confirm shipment values against mill records.
Send substrate grade and standard, BMT, width, AZ coating mass, paint resin and top/back film, color/gloss, coil weight, total order quantity, requested certificates, destination and delivery terms.
Send substrate grade and standard, base metal thickness, coil width, AZ coating mass, paint system, top/reverse dry-film thickness, RAL color and finish, coil net weight, quantity, destination and delivery requirements. Our sales team will confirm the applicable supply and inspection basis.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.