This Pre galvanized C Channel sold directly by Shixinda Factory is made from hot-dip galvanized steel strips. It is formed by continuous rolling and cutting with a cold bending machine, and has a C-shaped cross-section with a standard profile. It comes with a galvanized anti-corrosion coating and does not require additional painting or hot-dip galvanizing processing. Different from black material C-shaped steel (which requires later galvanizing) and hot-dip galvanized C-shaped steel: the base material is finished galvanized steel strips, which have higher production efficiency, uniform galvanizing layer, and good surface flatness. It belongs to prefabricated anti-corrosion lightweight steel structure profiles. Commonly used accessories: C-shaped steel-specific bolts, tension bars, supports, clamps, color steel tile supports, and connecting parts.
Roof load-bearing purlins: Main and secondary purlins for factory buildings, warehouses, livestock farms, and photovoltaic roof surfaces, bearing the loads of color steel sheets and rock wool boards, and transmitting the roof's self-weight and wind/snow loads to the main beams of the steel frame.
Wall wall beams: Vertical and horizontal purlins for the enclosure walls, fixing color steel wall panels and insulation sandwich panels, constructing the wall framework.
Main materials for photovoltaic supports: Longitudinal main beams and transverse secondary beams for ground photovoltaic and rooftop distributed photovoltaic, lightweight support core profiles.
Small equipment supports / cable tray brackets: Factory piping supports, cable tray bases, equipment load-bearing bases.
Secondary load-bearing components of light steel workshops: Partition frameworks, platform secondary beams, and door and window reinforcement frames.
Simple greenhouses, livestock sheds framework: Livestock sheds, light-weight supporting frameworks for fruit and vegetable greenhouses.
The base material of Pre galvanized C Channel is galvanized steel sheet, with the zinc layer evenly attached. It can resist rain, moisture, and mild acid-base corrosion, and is unlikely to rust in outdoor use. It eliminates the need for subsequent painting and hot-dip galvanizing processes, significantly reducing construction costs.
Cold-formed thin-walled structure, with a large section moment of inertia, excellent bending and torsion resistance; under the same load-bearing capacity, it is 30% lighter than I-beams and channel steel, reducing the steel usage of the steel structure and lowering transportation and lifting costs.
Factory fully automatic roller pressing for integrated molding, with standard dimensions and regular punching (pre-installed holes are available); on-site only requires bolt assembly, no welding, fast construction speed, and shortens project duration.
Height, flange, thickness, and length can be customized as needed. It can be paired with custom inner flanges, strengthening ribs, and enlarged flange models, suitable for different load requirements of roofs, walls, and photovoltaic systems.
Galvanized silver-gray matte surface, without rust spots or black stains. No need for decoration for exposed roofs and photovoltaic supports, making the project appearance neat. The galvanized layer has strong adhesion and is not prone to peeling or falling off during transportation and bending.
There is an abundant supply of galvanized sheet raw materials, with a lower unit price compared to hot-dip galvanized C-shaped steel, short delivery cycle, and significant cost advantages for large-scale factory and photovoltaic project purchases.
Suitable for factory buildings, photovoltaic systems, breeding sheds, storage facilities, municipal pipeline supports, etc. One type of profile can cover the needs of multiple industries.
Mainstream conventional models: C80, C100, C120, C140, C160, C180, C200, C220, C250, C300. Complete cross-sectional size example (C100 × 50 × 20):
Web height H: 80 - 300mm
Flange width B: 40 - 80mm
Inner flange C: 15 - 30mm (for reinforced models, 35mm is possible)
Conventional wall thickness: 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 2.75mm, 3.0mm. Solar panel supports often use 1.5–2.0mm; Large-span roof trusses in factories commonly use 2.0–3.0mm.
Standard fixed lengths: 6m, 9m, 12m
Customized lengths: 0.5 – 12m, any cutting is allowed. Extra-long parts need to be joined in sections.
Galvanizing zinc layer weight: 80g/㎡, 100g/㎡, 120g/㎡, 140g/㎡, 180g/㎡
Environmental usage classification:
Indoor dry factory: 80–100g/㎡
Open-air factory, ordinary solar panels: 120–140g/㎡
Coastal high humidity, chemical plant area: 180g/㎡ with thickened galvanized sheet
Base material brand: DX51D+Z, DX52D+Z (national standard galvanized steel sheet)
Mechanical properties: Yield strength above 235MPa, elongation meets standards, cold bending forming without cracking
Execution standards:
GB/T 2518 Continuous hot-dip galvanized steel plate and steel strip
GB/T 6728 Cold-formed steel technical conditions
Drilling: Pre-drilled circular installation holes, long strip-shaped adjustment holes, hole spacing customized according to drawings;
Strengthening treatment: For high-load models, the middle reinforcing rib can be pressed to enhance the bending resistance capacity;
Cutting: Both ends deburred, flat cutting edge, no flange cracking;
Tolerance standards: Cross-sectional size tolerance ±0.5mm, length tolerance ±3mm/6m.
1.2–1.8mm thin material: Small wall support beams, indoor partitions, small solar panel supports;
2.0–2.5mm medium-thick material: Regular factory roof / wall trusses, distributed solar panel main beams;
2.75–3.0mm thick material: Large-span factory buildings, roof trusses in snowy areas, heavy-duty solar panel supports.
Address
S213 Jinghai District, Tianjin City, China
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