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Brand & Implementation Standard
Mechanical properties
Core Advantages
904L Super Austenitic Steel
Extremely strong resistance to all-round corrosion: resistant to sulfuric acid, phosphoric acid, organic acids, seawater, and salt spray; low-carbon design; resistant to intergranular corrosion; excellent weldability; resistance to pitting and crevice corrosion far exceeds that of 316L; suitable for harsh chemical working conditions with extremely low pH and strong corrosion; non-magnetic; good toughness; excellent cold and hot working properties.
2205 Duplex Stainless Steel
High strength and high rigidity, saving material costs; excellent resistance to chloride stress corrosion cracking (SCC), solving the common problems of 304/316L; resistant to pitting, crevice corrosion, fatigue, and erosion; moderately high temperature resistance; stable under alternating hot and cold working conditions; cost-effectiveness superior to super austenitic steel; mainstream high-end material choice for seawater/oil and gas.
Application Scenarios
904L: Sulfuric acid/phosphoric acid chemical pipelines and reactors; flue gas desulfurization (FGD) Equipment, pickling equipment, high-chlorine, highly corrosive industries, pulp and paper industries, highly corrosive seawater, fine chemicals, pharmaceutical corrosion pipelines
2205: Seawater desalination, offshore platforms, marine pipelines, oil and gas extraction and transmission pipelines, oilfield corrosion-resistant systems, water treatment high-pressure equipment, heat exchangers, pressure vessels, chloride-treated environmental chemicals, cooling towers, desulfurization key components
Surface Types
Main Type: Pickled & Annealed (Optimal corrosion resistance, standard for chemical/fluid processing)
Optional: BA Bright Annealed, Fine Polishing (for clean piping/instrumentation)
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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