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YX 113-300-600
The YX-113-300-600 is a trapezoidal profiled galvanized prepainted steel panel designed for sloped roofing systems in industrial and commercial buildings. With a rib height of 113mm and effective coverage width of 600mm, this panel profile provides structural spanning capability suitable for roof assemblies with purlin spacing up to 1.8m. The profile is roll-formed from 914mm wide galvanized prepainted steel coils, producing three ribs per panel with 300mm rib spacing. This configuration creates consistent water drainage channels and structural rigidity for long-span roof applications.
Thickness(mm) | Moment of inertia (cm⁴/m) | Section of modulus (cm³/m) |
|---|---|---|
0.6 | 67.23 | 22.17 |
0.8 | 89.64 | 29.67 |
1.0 | 112.54 | 36.57 |
1.2 | 134.46 | 44.34 |
Standard material specifications for commercial procurement:
Parameter | Specification Range |
|---|---|
Coil width | 914mm |
Effective coverage | 600mm |
Rib height | 113mm |
Rib spacing | 300mm |
Available thickness | 0.6-1.2mm |
Panel length | 1000-11800mm (custom cut) |
Zinc coating weight | Z60-Z275 g/m² |
Coating system | PE/HDP/PVDF |
The base metal consists of cold-rolled structural steel with hot-dip zinc coating applied according to ASTM A653/A653M standard. The zinc coating provides cathodic protection to cut edges and scratched areas, reducing corrosion propagation in industrial environments. Z275 coating (275g/m² total both sides) is specified for coastal or high-humidity applications, while Z180 is standard for general industrial use.
The prepainted finish consists of a three-layer coating system applied in a continuous coil coating line. The primer layer (5-8μm epoxy or polyurethane) provides adhesion between substrate and topcoat. The topcoat (15-25μm) is available in polyester (PE) for standard environments, high-durability polyester (HDP) for moderate UV exposure, or polyvinylidene fluoride (PVDF) for 20+ year exterior durability. A backer coat (5-10μm) is applied to the reverse side for condensation resistance.
Section modulus values directly determine the allowable purlin spacing for given live loads. For 0.8mm thickness with 36.57 cm³/m section modulus, the panel supports 0.5kN/m² live load at 1.5m purlin spacing with deflection less than L/200 per building code requirements. Thicker gauges (1.0mm, 1.2mm) are specified for snow load regions exceeding 1.0kN/m² or purlin spacing greater than 1.5m.
The 113mm rib height provides water depth capacity for rainfall intensity up to 200mm/hour when installed at minimum 5% roof slope. Side lap seams feature a 360° mechanical interlock when specified, reducing water intrusion risk under wind-driven rain conditions. Panel ends require a minimum 150mm end lap for slopes below 10%.
Panels are fastened through the rib crests using self-drilling screws with EPDM sealing washers. Fastener spacing is 300mm on center at supports and 600mm at intermediate purlins for wind speeds up to 120km/h. For regions with higher wind speeds, fastener spacing is reduced to 200mm at perimeter zones. Cutting should be performed with nibblers or shears; abrasive cut-off wheels are not recommended as they damage the coating at cut edges.
This panel profile is specified for single-skin roofing in manufacturing facilities, warehouse distribution centers, logistics hubs, and agricultural buildings. It also serves as the outer face of built-up roof assemblies with insulation and liner panels for climate-controlled facilities. The 600mm coverage width provides installation rates of 45-60m² per worker per day on standard roof geometries.
Production follows ISO 9001:2015 quality management systems with three inspection stages: incoming material verification of zinc coating weight and paint film thickness, in-process dimensional checks every 50 panels during roll forming, and final visual inspection and coating adhesion testing before packaging. Mill test reports and third-party inspection reports are available upon request for commercial orders.
Minimum order quantity is 500m² for standard colors; custom colors require 3000m² minimum. Standard production lead time is 15-20 working days after deposit confirmation. Panels are packed in seaworthy wooden bundles with protective plastic film between sheets, suitable for ocean container shipping. Each bundle includes installation instructions and matching color touch-up paint.
Minimum recommended roof slope is 5% for mechanically seamed installations, and 7% for non-seamed standard installations. Lower slopes may require additional sealant in side laps.
PE coating systems carry 10-year film integrity warranty; HDP systems carry 15-year warranty; PVDF systems carry 20-year warranty against chalking, fading, and cracking. Substrate perforation warranty ranges from 15-25 years depending on zinc coating weight.
Yes, panels can be cut to exact project lengths from 1m to 11.8m to eliminate end laps and reduce installation time and leak points.
