DX51D Z275 Regular Spangle Galvanized Corrugated Roofing Panels for Long Span

１．Product Overview

DX51D Z275 regular spangle galvanized corrugated roofing panels are designed for industrial and civil construction, steel structure buildings, and roofing sheet production. The product is manufactured from hot dipped galvanized steel and formed into corrugated roofing panels for lightweight roofing and wall cladding applications.

The regular spangle surface provides a traditional galvanized appearance, while the passivated surface helps improve storage stability and surface protection. With 0.12mm thickness, 800mm effective width, and 3000mm length, the sheet is suitable for roofing projects requiring lightweight panel materials.

２．Technical Solution

The product uses SGCC, DX51D, or ASTM A653 galvanized steel substrate with zinc coating from 20-275g/m². The galvanized coating protects the steel substrate from oxidation and corrosion during storage, transportation, and building application.

Surface treatment options include passivated, chrome, skin pass, dry, and unoiled finishes. Corrugated forming improves sheet rigidity and drainage performance, making the product suitable for long span roof sheets and steel structure applications.

３．Specifications

４．Application

The galvanized corrugated roofing panels are suitable for industrial and civil construction, steel structure buildings, roofing sheet production, long span roof sheets, wall cladding, warehouses, workshops, agricultural buildings, and general building envelope applications.

５．Processing

The product can be supplied with customized thickness, width, length, zinc coating, spangle type, hardness, and surface treatment according to project requirements.

Processing includes galvanized steel coil preparation, corrugation forming, cutting to length, passivation, bundling, waterproof paper wrapping, steel sheet outer protection, and export shipment arrangement.

６．Advantages

• DX51D, SGCC, and ASTM A653 grades available
• 20-275g/m² zinc coating range for corrosion protection
• Regular spangle galvanized surface appearance
• Passivated surface for improved storage protection
• 0.12mm-2.0mm thickness range for different roofing requirements
• 600mm-1250mm width range for flexible project use
• Thickness tolerance ±0.01mm and width tolerance ±2mm
• Standard export packing with waterproof paper and steel straps

７．How to Choose

• Choose DX51D when good forming performance is required for roofing sheet production.
• Choose SGCC or SGCH for standard galvanized roofing and construction applications.
• Choose higher zinc coating for humid, coastal, or industrial environments requiring stronger corrosion resistance.
• Choose passivated or chromed surface treatment when better storage protection is required.
• Confirm thickness, effective width, length, zinc coating, spangle type, and packing method before production.

８．FAQ

Q1．What steel grades are available
SGCC, SGLCC, CGCC, SPCC, ST01Z, DX51D, and A653 grades are available.

Q2．What zinc coating range can be supplied
The zinc coating range is 20-275g/m².

Q3．What thickness range is available
Thickness ranges from 0.12mm to 2.0mm.

Q4．What surface treatments are available
Passivated, chrome, skin pass, dry, and unoiled surface treatments are available.

Q5．What applications are suitable for this product
It is suitable for roofing sheet production, long span roof sheets, wall cladding, steel structure buildings, warehouses, industrial buildings, and civil construction projects.