C/Z Steel Purlins are the backbone of modern housing construction, characterized by stability and rapid construction. Liweiyuan's purlins are manufactured using high-quality steel and cold-bent technology. They are durable and easy to install. Their exceptional strength allows them to withstand the most demanding conditions and are suitable for a wide range of applications. Choose our products with confidence, and we will provide you with excellent service.
Liweiyuan Steel Structure's customized C/Z Steel Purlin A653 hot-rolled steel plate, a 50 ksi yield strength, high-strength low-alloy steel, ensuring that material properties meet the load requirements of the US Building Code (IBC 2021). All raw materials are provided with MTRs (Material Test Reports) and Certificates of Origin, meeting Buy American Act compliance requirements.
Liweiyuan Steel Structure is a leading manufacturer of various steel structure products and metal products in China. We offer customized solutions for various metal products, providing customers with high-quality, low-cost steel structure products and metal products. We provide materials and steel structure design solutions that comply with US and European standards, as well as other national and regional standards.
1. Roll Forming System: Utilizes an 18-roll precision forming unit with a machining accuracy of ±0.5mm, enabling the production of flange widths up to 88mm and web heights up to 300mm at a forming speed of 15-25 meters per minute.
2. Punching: Equipped with a CNC punching unit, it supports multi-angle punching of webs and flanges, with a hole diameter tolerance of ±0.2mm and a hole spacing accuracy of ±0.3mm. It can also simultaneously produce holes conforming to US standard C-section steel connection patterns (such as Simpson Strong-Tie adapter holes).
3. Cutting System: Utilizes flying saw cutting technology with a length tolerance of ±1mm/m and a diagonal deviation of ≤1.5mm. It supports cuts of 6-12 meters to meet US modular building assembly requirements.
1. Section Optimization: Based on AISI S100-20, the North American Cold-Formed Steel Structure Design Code, provides customized cross-sectional parameter calculations and optimizes web wave height (15-25mm) and flange flange (15-40mm) design.
2. Load Calculation: Supports US ASCE 7-16 load code calculations, providing combined load analysis reports including dead load, live load, wind load, and snow load.
3. Seismic Design: Complies with the US UBC 97 seismic code requirements, providing seismic performance parameters for C-section steel purlins in Seismic Zones 0-4.
IV. Quality Inspection System
1. Dimensional Inspection: A laser scanning inspection system is used to perform full-scale inspections of C-section steel web height, flange width, thickness, and length. Data is uploaded to the quality traceability system in real time.
2. Mechanical Properties: Each batch of products undergoes tensile testing (yield strength, tensile strength, elongation) and bend testing in accordance with ASTM E8/E8M standards.
3. Coating Inspection: Passes the salt spray test (ASTM B117) Coating corrosion resistance testing ensures no rust, blistering, or peeling for ≥1000 hours. A coating thickness test report will be provided.
V. Packaging and Transportation Solution
1. Packaging Standard: Packed using rust-proof paper and steel strapping, with each bundle weighing 2-3 tons and on wooden pallets, in compliance with ISPM 15, the international standard for wood packaging quarantine.
2. Labeling System: Each bundle will include an English label containing the project name, specifications, model, material, length, quantity, batch number, production date, and the CE mark.
3. Logistics Solution: We offer FOB Qingdao or CIF shipping services to major US ports, supporting connections with US logistics companies and providing full logistics tracking.
1. Engineering Consulting: We provide structural design plans signed and confirmed by a US registered engineer (PE), and support technical coordination with the customer's design institute.
2. Installation Guidance: We provide installation video tutorials and support remote installation training.
Section Type: Web Height (mm); Flange Width (mm); Thickness (mm); Length Range (m); Galvanized Coating Application Scenario
C\Z300 300 88 2.75 6-12 Paint (Customizable Colors) Industrial Buildings
This solution strictly adheres to US steel structure industry standards. All technical parameters can be customized to meet specific project requirements. We provide a comprehensive solution from design and calculation to manufacturing and logistics delivery.
1. What happens if a product quality issue occurs?
If we receive quality feedback, we promise to respond within 24 hours and provide a solution within 48 hours. If the issue is our fault, we can provide free rework, expedited reissue (shipping costs covered by us), or compensation as per the contract.
2. How do we ensure consistent product quality? Do we have a comprehensive quality inspection process?
Our company is ISO9001-2016 certified and implements three levels of quality inspection: steel composition and strength testing before raw materials arrive; QC personnel conduct inspections and complete records at every production process; and test data is fully archived for easy access by customers.
3. Do the steel structure products meet the entry standards of the target market?
Our Liweiyuan steel structures are CE certified (EN1090 standard), ensuring compliance with EU safety, environmental, and energy efficiency requirements. Complete test reports are available.
4. What is the delivery time?
Delivery time depends on the size and quantity of the building. Generally, it's within 30 days after receiving payment. Partial shipments are permitted for large orders.
5. Do you provide installation services?
We will provide you with detailed construction drawings and manuals to help you step by step with the erection and installation of your building.
