JIS G3302 Q345B G550 Corrugated Steel Roofing Sheet for Steel Structure Housing

１．Product Overview

JIS G3302 Q345B corrugated steel roofing sheet is designed for steel structure housing, roofing systems, wall cladding, industrial buildings, warehouses, and building material applications.

The product uses galvanized corrugated steel sheet structure to improve panel rigidity, installation stability, and water drainage performance. With 0.3mm thickness, 900mm width, 3000mm length, and small spangle surface, it is suitable for lightweight roofing and cladding systems.

２．Technical Solution

The roofing sheet is manufactured from galvanized steel and processed through corrugated roll forming technology.

The corrugated profile improves sheet stiffness and overlap installation performance. Surface treatment options including skin-passed, non skin-passed, and chromated finishes support different storage, appearance, and project requirements.

３．Specifications

４．Application

This corrugated steel roofing sheet is suitable for industrial and civil buildings, warehouses, special construction projects, large-span steel structure housing, roofing systems, wall cladding, interior and exterior decoration, steel structure housing, workshops, and general building material applications.

It can also be used for refrigerator panels, washer panels, freezer panels, air conditioner panels, rice cooker panels, microwave oven panels, water heater panels, range hood panels, computer panels, DVD/DVB panels, and TV back panels.

５．Processing

The product can be supplied according to customized thickness, width, length, zinc coating, surface treatment, spangle type, and packing method.

Processing includes galvanized steel coil preparation, corrugation forming, cutting to length, surface treatment, bundling with steel strips, waterproof paper wrapping, and export shipment arrangement.

６．Advantages

• 0.3mm lightweight corrugated structure for easy installation
• Small spangle galvanized surface appearance
• Multiple width and length options available
• Corrugated profile improves rigidity and drainage performance
• Suitable for steel structure housing and building material applications
• Skin-passed, non skin-passed, and chromated surface treatment options
• Standard export packing with steel strips and waterproof paper

７．How to Choose

• Choose G550 when higher sheet hardness and rigidity are required.
• Choose DX51D or SGCC for standard galvanized roofing and forming applications.
• Choose suitable zinc coating according to outdoor exposure and corrosion resistance requirements.
• Confirm thickness, width, length, surface treatment, spangle type, and packing requirements before production.

８．FAQ

Q1．What steel grades are available
G550, Q345B, DX51D, SGCC, DX52D, and DX53D are available.

Q2．What thickness range can be supplied
The available thickness range is 0.13mm–0.8mm, with 0.3mm listed for this product.

Q3．What width options are available
Available widths include 610mm, 760mm, 840mm, 900mm, 914mm, 1000mm, 1200mm, and 1250mm.

Q4．What surface treatments are available
Skin-passed, non skin-passed, and chromated surface treatments are available.

Q5．What applications are suitable for this product
It is suitable for steel structure housing, roofing systems, wall cladding, warehouses, industrial buildings, appliance panels, and general building material applications.