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YXB 65-185-555 is a closed-profile steel floor decking panel manufactured by Anhui Hongye Steel Structure Co., Ltd. This profile features a 65mm rib height, 185mm rib spacing, and 555mm effective coverage width after roll forming. The product is formed from 1070mm wide galvanized steel coils, with available thickness ranging from 0.8mm to 1.2mm. Production capacity for this profile reaches 500,000 square meters annually on dedicated roll forming lines.
This decking profile is produced in accordance with GB/T 12755-2008 cold-formed steel section standards. Base material options include Q235B and Q355B structural steel, with hot-dip galvanized coating weights of Z120 (120g/m²) or Z275 (275g/m²) available for different corrosion environments. Dimensional tolerance for formed panels maintains ±0.5mm on critical profile dimensions. The manufacturing facility operates under ISO 9001:2015 quality management system certification.
Thickness (mm) | Moment of Inertia (cm⁴/m) | Section Modulus (cm³/m) |
|---|---|---|
0.8 | 53.95 | 25.614 |
1.0 | 67.44 | 32.018 |
1.2 | 80.928 | 36.02 |
These values apply to positive bending conditions with the ribs in compression, as typically encountered during construction and composite slab operation.
Parameter | Measurement (mm) | Tolerance (mm) |
|---|---|---|
Total rib height | 65 | ±1.0 |
Rib center spacing | 185 | ±0.75 |
Effective coverage width | 555 | ±2.0 |
Raw coil width | 1070 | - |
Available panel length | 1000-12000 | ±5.0 |
The closed rib design creates a flat soffit after concrete pouring, reducing ceiling finishing requirements in occupied spaces.
This profile has been supplied to petrochemical processing facilities including Ningbo Zhenhai Petrochemical projects and Hebei Sanhe Power Plant structures. The Z275 galvanized coating option provides resistance to atmospheric corrosion present in industrial environments. The 65mm rib depth provides sufficient spanning capability for typical mezzanine and equipment platform layouts in these facilities.
YXB 65-185-555 decking has been installed in semiconductor manufacturing facilities including Hangzhou Zhongxin Wafer Semiconductor plant cleanroom areas. The profile's dimensional consistency supports the flat floor tolerance requirements for precision equipment installation. The closed soffit reduces air leakage paths in controlled environment construction.
The profile has been used in mixed-use developments including Shanghai Huarun Huangpu River E20 Unit project. The 65mm profile depth allows for reduced overall slab thickness compared to open rib profiles, providing increased floor-to-ceiling height in multi-story construction. The profile supports underfloor heating system installation and acoustic insulation layer placement.
Panels are supplied cut to project-specified lengths, reducing on-site cutting requirements. Side lap connections use self-drilling screws at 300mm centers, with end lap fasteners spaced at 200mm centers. Support bearing length minimum is 50mm on steel framing members. Weld stud connectors are installed through the decking to steel beams at specified spacing to achieve composite action.
This decking profile is compatible with C30 to C50 concrete strengths, with typical slab depths ranging from 100mm to 150mm above the deck ribs. The embossed surface texture provides mechanical bond between steel and concrete to achieve composite slab performance. Mesh reinforcement is placed in the concrete topping as specified by project structural calculations.
Standard production lead time is 7-10 working days for orders up to 10,000 square meters. Minimum order quantity is 300 square meters for standard thickness and material specifications. Custom lengths are available within the 1000mm to 12000mm range without additional tooling costs. Panels are bundled on wooden pallets with steel strapping for ocean and road transport.
Each production batch includes material test reports for base steel and galvanized coating. Third-party inspection reports are available upon request, covering dimensional tolerance, material yield strength, and coating weight measurements. Product documentation includes installation drawings, section property calculations, and shipping manifests. On-site technical guidance can be arranged for projects over 5,000 square meters. Standard warranty covers manufacturing defects for a period of 12 months from delivery date.
The standard minimum order quantity is 300 square meters for stock material specifications. Smaller orders may be accommodated based on existing production schedules, with potential extended lead times.
Standard production uses Q235B grade steel with Z120 galvanized coating. Q355B high-strength steel and Z275 heavy galvanized coating are available as custom options for projects requiring higher load capacity or increased corrosion resistance.
Standard documentation includes mill test certificates for raw materials, production inspection records, layout drawings, and installation guidelines. Structural calculation sheets and load tables can be provided for engineering submittals upon request.
Yes, panels can be cut to lengths between 1000mm and 12000mm to match project bay dimensions. Custom cutting is performed in-factory prior to delivery to reduce on-site labor and material waste.
