Sihe Steel
Sihe Steel
Explore our high-performance tubing, coiled sheets, and custom alloy pipes manufactured to strict international standards.
An authoritative analysis of properties, application suitability, and global supply economics.
In the hierarchy of industrial alloys, Stainless Steel Grade 316L (UNS S31603) represents the pinnacle of cost-effective corrosion resistance. As a low-carbon derivative of Grade 316, the "L" stands for "Low Carbon" (restricted to a maximum of 0.03%), which eliminates the risk of chromium carbide precipitation during welding. This metallurgical structure ensures that components retain high structural integrity and corrosion-resistant properties without post-weld annealing.
Adding 2.0% to 3.0% Molybdenum drastically improves the alloy's resistance to localized pitting and crevice corrosion, particularly in chloride-laden environments. This makes it an indispensable asset across the global chemical process industries, marine architectural layouts, subsea pipelines, and medical environments.
| Chemical Component | SS316L Composition (%) | SS304 Composition (%) |
|---|---|---|
| Chromium (Cr) | 16.00 - 18.00 | 18.00 - 20.00 |
| Nickel (Ni) | 10.00 - 14.00 | 8.00 - 10.50 |
| Molybdenum (Mo) | 2.00 - 3.00 | - |
| Carbon (C) | Max 0.03 | Max 0.08 |
Procuring SS316L sheets from China offers international buyers a distinct strategic advantage. Chinese manufacturers, backed by integrated raw material supply chains, state-of-the-art cold-rolling mills, and advanced vacuum oxygen decarburization (VOD) refining processes, deliver high-quality steel that complies with ASTM, ASME, JIS, and EN standards.
However, navigate procurement successfully requires analyzing several structural layers:
Liaocheng Sihe Stainless Steel Material LTD acts as your primary partner, utilizing advanced production technologies to fulfill small-batch custom requests as well as large-scale industrial orders.
Driving innovation in stainless steel sheet and coil tube manufacturing for over a decade.
Liaocheng Sihe Stainless Steel Material LTD stands as a leading expert in the production of stainless steel coiled tubes, stainless steel polishing tubes, and stainless steel seamless coiled tubing. Our facility operates six modern production lines, producing premium sheets, plates, and pipes according to strict production standards: GB, ASTM, ASME, JIS, and EN.
We work with multiple steel grades, including 304/304L, 316L, 321, 317L, 309S, 310S, and INCOLOY 800. Our specialized production line capabilities cover Austenitic steel 316L, Duplex 2205, Super Duplex 2507, Incoloy 825, and Inconel 625, satisfying critical needs for aerospace, petroleum exploration, subsea umbilicals, and semiconductor systems.
We provide coiled tubing in sizes ranging from an outer diameter of 0.125 inch (3.175 millimeters) to 1 inch (25.4 millimeters), with wall thicknesses up to 0.165 inch (3 millimeters). We offer continuous lengths up to 32,800 feet (10,000 meters) without orbital welds, serving as a reliable supply source for cost-effective subsea umbilical manufacturing.
To ensure high quality, we operate advanced bright annealing technology that provides online softening treatments. Our testing infrastructure includes compression, flaring, bending, 100% hardness tests, tensile testing, and air-tightness verification, allowing us to guarantee zero-defect shipments globally.
Providing value-added fabrication services and structural materials to global industries.
Our SS316L sheets and custom coiled tubes operate across multiple demanding environments:
Our manufacturing system operates under international verification frameworks, ensuring traceability and mechanical compliance.
Adopting sustainable manufacturing practices, high-purity alloy chemistries, and industry 4.0 production processes.
Future iterations of SS316L demand low inclusions. Through vacuum induction melting (VIM) and electro-slag remelting (ESR), we reduce micro-impurities and trace sulfur, optimizing performance for semiconductor gas delivery lines and pharmaceutical equipment.
In line with global carbon regulations (such as CBAM), we are optimizing heating schedules within our bright annealing processes, lowering fuel energy inputs and overall carbon footprints while maintaining high material performance.
Every sheet batch is tracked via an internal ERP system linked to its specific heat number. This traceability guarantees that mechanical test metrics, PMI reports, and surface roughness records are readily available to end-users.
Providing clear answers to technical questions about procurement, specifications, and applications.
Our prices depend on raw material costs (LME Nickel and Ferro-Chrome prices), processing requirements, and general market conditions. Please contact our sales team with your detailed specification sheet, and we will provide a comprehensive quote within 24 hours.
Yes, we require minimum order quantities for international shipments to maintain production line efficiency. Standard sizes in stock may have lower MOQ requirements, whereas customized specifications or special alloys typically require a larger batch size. Please contact us to discuss your order needs.
Yes. We provide complete documentation packages, including Material Test Certificates (MTC) to EN 10204 3.1, Certificates of Origin, Certificate of Conformity, export customs papers, and cargo transport insurance documents.
For items in stock, shipping takes about 7 days. For custom production runs and volume orders, the typical lead time is 20 to 30 days following receipt of the advance payment. Production timelines are calculated from the point of final approval of your shop drawings or technical specifications.
We typically accept a 30% advance deposit via telegraphic transfer (T/T), with the remaining 70% balance paid against the copy of the Bill of Lading (B/L). We also accept L/C payments for high-volume transactions.
We warrant that our materials comply with ASTM, ASME, EN, and JIS standards. In the event of material defects or dimensional non-conformity, our policy is to inspect, replace, or resolve the issue to ensure customer satisfaction.
Yes. We pack our materials using heavy-duty export packaging, including steel crates, wooden runners, waterproof wrapping, and custom structural bracing, to prevent transport damage during ocean transit.
View additional items from our integrated production lines, designed for structural stability and chemical transport.
