Sihe Steel
Sihe Steel
High-performance stainless steel coiled tubing, heat exchanger pipes, and capillary systems configured for immediate global dispatch.
As a global leader in high-performance metallurgy, Liaocheng Sihe Stainless Steel Material LTD operates six state-of-the-art production lines designed exclusively for cold drawing, precision shaping, and online bright annealing of premium stainless steel coiled tubing. Over a decade of rigorous technological adaptation enables us to manufacture seamless coiled piping to stringent international codes: GB, ASTM, ASME, JIS, and EN.
Our raw material portfolio ranges from foundational austenitic grades to highly corrosion-resistant super duplex and nickel-based superalloys. We process and formulate:
Capable of producing single continuous, orbitally orbital-free spooled lengths up to 32,800 feet (10,000 meters), our tubing is built to withstand extreme hydrostatic and corrosive stresses downhole, offshore, and inside complex heat exchangers.
Advanced Production Lines
Continuous Tubing Lengths
Exporting Countries & Regions
Eddy Current & Hydrotested
Pioneering tomorrow's fluid transmission systems with advanced metallurgical engineering and hydrogen-safe piping technology.
Utilizing inline protective hydrogen atmospheres during heat treatment, we ensure absolute elimination of surface decarb. Our tubes exit the furnace with zero oxide scale, reducing interior flow friction and preserving mechanical ductility for critical bending installations.
By engineering continuous cold pilgering and drawing mechanisms, we bypass the need for structural mid-span seam welds in extremely long lines. This results in isotropic pressure containment, eliminating potential stress riser nodes along the umbilical deployment paths.
Our ongoing metallurgical roadmap focuses heavily on reducing hydrogen embrittlement pathways. Through grain boundaries orientation control and optimizing alloy chemistry (nickel content >12% in custom 316L formulas), we actively supply high-pressure tubing for green hydrogen compression terminals.
Translating advanced materials properties into reliable, long-term installations across complex industrial ecosystems.
| Sector / Vertical | Primary Material Selection | Technical Challenges Addressed | Value Provided |
|---|---|---|---|
| Deepwater Oil & Gas | Duplex 2205, Super Duplex 2507, Incoloy 825 | Corrosive chlorides, sour gas (H2S), extreme external hydrostatic pressures. | Prevents downhole corrosion, guarantees control line fluid delivery over 10km spans. |
| Chemical / Process Plants | Inconel 625, 316L, 317L | High concentrations of acids, thermal expansion cycles in continuous processing. | Minimizes downtime, avoids fluid contamination, keeps continuous loop integrity intact. |
| HVAC & Geothermal | 304, 304L, 316L | Ground-loop chemical exposure, heat transfer fluid efficiency requirements. | Improves thermal exchange performance, reduces structural leak points over 20-year spans. |
| Bio-Pharma & Semiconductor | 316L (Ultra-Polished), 304 Precision Capillary | Micro-contamination, particulate entrapment, strict sanitary requirements. | Cleanroom-grade surface profiles, ultra-smooth IDs down to 0.05μm, easy SIP sterilization. |
By blending digital ERP tracing systems with real-time laser diameter gauges, Sihe Stainless Steel maintains total control over geometric sizing. Our coiled tubing diameters range from 0.125 inch (3.175 mm) to 1 inch (25.4 mm) with wall thicknesses up to 0.165 inch (3 mm).
Quality control operates as a continuous, automated workflow along the entire length of the tube spool:
Flexible fabrication capabilities tailored to unique engineering drawings and international logistics compliance.
Supports custom material grades (304, 316L, 2205) and precise bending profiles. Diameter setups from 6.35 mm to 19 mm are custom bent to dynamic configurations for heat exchangers.
Specially calibrated coil winders bundle high-density heat-transfer configurations without introducing wall thinning or micro-cracks along the outer diameter arc.
High-precision laser cut-offs, manual deburring, and clean end-prepping prevent localized thermal heat affected zones, ensuring easy welding on-site.
Provides flared ends, compressed terminations, and precision mechanical flanging for exhaust loops, chemical piping, and instrumentation manifolds.
Every spool is fully traceable and certified to standard industrial protocols. Global logistics insurance included.
Designed for stability in safety-critical deployments globally.
Technical parameters, global supply chain capabilities, quality warranties, and commercial terms explained.
Explore our full line of corrosion-resistant precision tubing and industrial pipes, designed for high-stress applications.
