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Core best-selling materials and their applications
Material Selection:
Q235B (GB/T 700)
Yield strength ≥ 235 MPa; tensile strength 370–500 MPa; impact tested at 20°C.
A standard carbon steel with excellent bending and welding properties; the most cost-effective option.
Equivalent to: JIS SS400 (Japan) / ASTM A36 (USA).
Applications: General-purpose supports, guardrails, equipment bases, secondary steel structures; used for both domestic projects and export-related components.
Q355B (Low-alloy high-strength steel, GB/T 1591)
Yield strength ≥ 355 MPa; tensile strength 470–630 MPa; impact tested at 20°C.
Formerly designated as Q345B; now standardized as Q355.
High strength allows for smaller cross-sections under the same load, resulting in steel savings.
Equivalent to: JIS SM490 (Japan) / ASTM A572 Gr. 50 (USA).
Applications: Main girders for industrial buildings, load-bearing equipment bases, steel structural frames, and heavy-duty supports.
Q355NL (Low-temperature grade, GB/T 1591)
Yield strength ≥ 355 MPa; impact tested at -40°C; strict control over toughness.
A low-alloy, high-strength steel with more stringent limits on impurities (sulfur and phosphorus).
Applications: Projects in cold northern regions, steel structures in frigid overseas locations, and export orders requiring low-temperature MTR (Material Test Reports).
Our factory boasts core production and export advantages of national standard channel steel：
Sufficient stock of all specifications, with mainstream a/b/c models from 5# to 40# readily available. We can provide one-stop matching with national standard H-beams, I-beams, angle steel, and steel plates, reducing procurement and logistics costs.
Strictly adhering to national standard material standards, Q235B/Q355B meets physical, chemical, and mechanical indicators and passes domestic acceptance.
High-precision rolling ensures superior quality. Dedicated national standard shaped rolls ensure compliant dimensions, straightness, and side bending tolerances. The surface is free of cracks and folds, suitable for welding and galvanizing.
Large-scale hot-rolling production line, direct shipping from stock, fast scheduling for custom-made and deep-processing, and optimized container allocation to save on sea freight costs.
Direct factory pricing + customization, no middlemen markups, integrated processing including sizing, drilling, rust removal, painting, and hot-dip galvanizing.
Support customization of material models
Established foreign trade export system, with long-term exports to EU, Middle East, Africa, Southeast Asia and other regions following European standards; 24-hour rapid quotation, full-process tracking + professional selection, technical support and after-sales service.
Payment Methods
Flexible payment terms available: T/T and L/C. For new clients, 30% advance payment for production, balance against copy of B/L. L/C is acceptable for large & regular orders to secure both parties.
Warehousing Management
Before each batch of steel leaves the factory, a complete process inspection is strictly carried out. From chemical composition, mechanical properties to dimensional tolerance and surface quality, each item is carefully checked to ensure compliance with national standards and export regulations. At the same time, the quantity, packaging and rust prevention treatment are also verified. An original factory warranty certificate is attached, guaranteeing the quality. Before shipment, inspection photos are provided. Any non-compliant items will not be released, and the quality is fully controllable throughout the process. This ensures your overseas purchasing is safe and worry-free.
All items are visually inspected before delivery. No cracks, deformation, rust, scratches or cutting marks are allowed; edges must be smooth. Only visually sound products will be shipped.
Thickness, width, length, wall thickness, outer diameter have been measured. Straightness, curvature, torsion, diagonal tolerance all meet the corresponding tolerance requirements.
Quality inspection includes: mechanical property tests (yield strength, tensile strength), elongation rate, impact energy, hardness testing, chemical composition testing, process performance testing, etc.
Inspection according to packaging requirements: secure binding, moisture-proof film, rust-proof paper, export fumigation/fumigation-free wooden crates, shipping marks, gross weight, net weight, etc.
We will provide full reception services to support the customers' on-site inspection of the goods.
Warehousing Management
A ten-thousand-ton standardized warehouse with grid-based zoning and system positioning enables rapid material retrieval and reduces the time spent searching for materials.
Inbound inspection: Verify the physical items against the inbound form, inspect the appearance, dimensions, and labels. Once confirmed to be correct, the materials are entered into the ERP system and processed for storage.
Logistics and Global Delivery: Self-operated fleet + contracted logistics partners; expedited service available for urgent orders.
International Shipping: Supports FOB, CIF, DDP, and other trade terms, covering 100+ countries and regions.
Process: Booking → Trucking → Customs Declaration → Loading onto Ship/Aircraft → Bill of Lading Issuance → Document Delivery → Destination Port Customs Clearance (Optional) → Last-Mile Delivery.
Provides door-to-door one-stop logistics with full tracking to ensure safe and timely arrival of goods.
After-Sales Service and Traceability: Delivery receipts, logistics information, and quality inspection documents are sent to customers within 24 hours of shipment.
Established a full product lifecycle traceability system, allowing tracking of production, quality inspection, warehousing, and transportation records.
Follow-up inspection within 72 hours of arrival; rapid response and handling of quality issues; assistance in resolving customs clearance issues for foreign trade orders.
Packaging Method
Fumigation-free plywood boxes
Steel strapping/bottom pallet
Vacuum/VCI Rust-Proof Paper
Steel plate frame reinforcement
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