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Composition Characteristics
Based on 304 stainless steel, Ti (titanium) content is added ≥ 5×C%, generally between 0.10~0.80%.
Typical composition: C ≤ 0.08%, Cr 17.0~19.0%, Ni 9.0~12.0%, Ti: stabilizing carbon element.
Core principle: Titanium preferentially combines with carbon, preventing chromium from forming intergranular carbides with carbon, thereby avoiding a decrease in corrosion resistance after welding.
Mechanical properties
Features & Advantages
Excellent resistance to intergranular corrosion; resistant to corrosion after welding and high-temperature heating, eliminating the need for post-weld heat treatment.
High-temperature resistance superior to 304; long-term operating temperature reaches 850~900℃, suitable for high-temperature and repeatedly heated conditions.
Resistant to deformation and maintains good strength at high temperatures. Corrosion resistance close to 316; good structural strength; widely used in high-temperature pipelines, boilers, and heat exchangers. Excellent weldability; preferred for thick plates, pressure vessels, and repeatedly welded structures.
Typical Applications
Boilers, heat exchangers, high-temperature pipelines, pressure vessels, welded structural components, aerospace and engine parts, chemical equipment, flue gas pipelines, heat treatment furnace accessories, high-temperature fasteners.
321 vs. 304 / 316 / 310S
304: General corrosion protection, not resistant to high-temperature welding.
321: High-temperature resistance + weld corrosion resistance; the king of medium-temperature conditions.
316: Better resistance to acids, alkalis, and seawater, but not as good as 321 at high temperatures.
310S: Ultra-high temperature, but more expensive.
Surface finish: 2B Industrial Standard (most commonly used), BA Bright Annealed Finish, No.1 Hot Rolled Pickled Finish, No.4 Brushed/Matte Finish, HL Hairline Finish, 8K Mirror Finish
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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