Sihe Steel
Sihe Steel
Top-performing structural and fluid-transmission tubing optimized for Argentine operational standards.
Argentina's heavy industries are experiencing a major transition, driven by massive shale development in the Vaca Muerta formation (Neuquén Basin), chemical upgrades in San Lorenzo & Bahía Blanca, and modern agricultural installations throughout Santa Fe and Córdoba. Operating under aggressive environmental conditions, critical equipment such as heat exchangers, shell-and-tube condensers, and instrumentation lines must resist high temperatures, pressure cycles, and corrosive agents.
We supply high-grade 316 and 316L (UNS S31603) stainless steel heat exchanger pipes engineered to withstand sour gas (H₂S), chloride stress corrosion cracking, and organic acids. Utilizing molybdenum additions (2-3%), our pipes ensure a high Pitting Resistance Equivalent Number (PREN ≥ 23), offering maximum integrity for harsh industrial applications.
Our specialized bright-annealed (BA) and solution-annealed surface treatments guarantee minimal fouling and premium chemical stability, critical for Argentine wine refineries, local petrochemical plants, and oceanic terminals.
Strict metallurgical properties tailored to comply with international codes ASME VIII-1 and IRAM directives.
| Material Standard | Available Grades | Outer Diameter (OD) Range | Wall Thickness (WT) | Testing Protocol |
|---|---|---|---|---|
| ASTM A213 / ASME SA213 (Seamless) | TP304/304L, TP316/316L, Duplex 2205, Super Duplex 2507 | 0.125" to 1.0" (3.175mm – 25.4mm) | Up to 0.165" (3.0mm) | 100% Hydrostatic, Eddy Current, Hardness, Flaring & Flattening Tests |
| ASTM A312 / ASME SA312 (Welded/Seamless) | TP316L, 317L, 310S, INCOLOY 800/825 | 1/8" NB to 24" NB | SCH 10S to SCH 80S | Ultrasonic, Air Tightness, Radiographic (for welded lines) |
| ASTM A269 (General Instrumentation) | TP316L, 321, Inconel 625, UNS S31254 | 3.18mm to 25.4mm | 0.5mm to 3.0mm | Dimensional tolerance check, Mechanical properties verify |
| JIS G3459 / EN 10216-5 | SUS304, SUS316L, SUS310S | Metric sizes customized | Custom up to 3mm | Bright Annealing online treatment verification |
For over a decade, Liaocheng Sihe has been at the forefront of manufacturing high-end stainless steel coiled tubing, seamless heat exchanger pipes, and capillary systems. Operating six state-of-the-art production lines, our process yields standard-compliant products utilizing grades such as 304/304L, 316L, 321, 317L, 309S, 310S, INCOLOY 800, Duplex 2205, Super Duplex 2507, Incoloy 825, and Inconel 625.
We pride ourselves on introducing world-class Bright Annealing (BA) technology. This process enables online protective-gas heat treatment, ensuring the microstructural recovery of austenitic and duplex grains without surface oxidation. The result is a mirror-smooth inner diameter (ID) and outer diameter (OD) that significantly prevents carbon depletion and limits the risk of crevice corrosion under high-temperature cycling.
Every single length of tube undergoes rigorous quality checkpoints before export, including hydraulic testing, pneumatic testing, pneumatic air-tightness, 100% hardness inspections, and mechanical flaring evaluations. Today, more than 80% of our products are supplied worldwide, providing safe and secure operations in harsh deepwater offshore environments and critical industrial plants.
Liaocheng Sihe operates under strict international certifications, ensuring reliable integration into global industrial pipelines.
Engineered solutions solving challenging conditions across Argentina's strategic sectors.
Refinery platforms in Buenos Aires Province require robust thermal exchange surfaces handling raw crude feeds.
Chilled-water heat loop systems for municipal cold storage setups throughout Central Argentina.
Managing harsh organic solvents and chloride-carrying process liquids in Santa Fe factories.
Sanitary-grade surface tube packages matching wineries in Mendoza and processing plants in Córdoba.
High-purity ASME BPE-grade tubing with ultra-low inner roughness (Ra < 0.4 microns).
High-pressure steam condenser pipes designed for combined-cycle facilities.
High-strength alloy coiled tubing for chemical injection in deep Vaca Muerta shale gas wells.
Precision hydraulic lines designed to manage heavy stress loads under high operational vibration.
Providing value-added fabrication services to streamline installation timelines for Argentine engineering contractors.
Supports 304, 316L, and Duplex 2205 alloys with precision coil configurations (OD 6.35mm to 19mm) designed to optimize heat exchange performance.
High-precision cutting and alignment processes that keep length tolerances within strict limits, minimizing local welding requirements.
Precision orbital welding, beveled ends, and flange connections customized for installation in petrochemical complexes.
Factory-direct specifications shipped worldwide with full certification files.
As global industries optimize for thermal efficiency and decarbonization, heat exchanger technology is evolving. Liaocheng Sihe is continually upgrading production capability to support future applications:
Our dedicated shipping network coordinates with customs terminals, including Buenos Aires Port (Puerto Nuevo) and Rosario, to manage import documentation, certificates of origin, and custom sizing checks, minimizing transit delays.
25 - 35 Days (Port-to-Port Sea Freight)
Technical and logistics questions regarding our international export processes for the South American market.
