Sihe Steel
Sihe Steel
Industrial-grade high strength coiled tube complying with European EN standards.
Bright-annealed and mirror-polished finish decorative profile engineered for commercial spaces.
Precision structural dimension profiles tested for mechanical consistency and architectural trims.
Standard-compliant European grade decorative tubes designed for cost-effective interior aesthetics.
France is undergoing major architectural renovations, particularly in Paris (Grand Paris Express projects) and southern urban corridors. Architects and interior designers are looking for materials that blend aesthetics with tensile integrity. The high manganese content of Grade 201 offers elevated yield strength, crucial for high-traffic balustrades, handrails, and elevator interiors.
For interior applications in continental and urban France (such as Lyon, Toulouse, and Strasbourg), Grade 201 offers optimal rust resistance when polished correctly (Mirror Grit 600 or Satin Finish). Avoiding direct exposure to marine salt spray, French engineering specifications utilize 201 to realize up to 35% savings over Grade 304 without compromising visual luxury.
Leading Chinese factories like Liaocheng Sihe Stainless Steel Material LTD leverage intelligent hot-rolling and automated bright annealing processes. This ensures thickness tolerances within ±0.02mm and uniform mechanical performance, mitigating risk for overseas French procurement offices looking for high-volume consistency.
Understanding chemical configuration is essential for selecting the correct material. Grade 201 substitutes nickel with nitrogen and manganese, providing higher yield strength and an economical alternative for decorative environments.
| Alloy Specification (ASTM) | Carbon (C) Max | Nickel (Ni) Range | Chromium (Cr) Range | Manganese (Mn) Range | Tensile Strength (MPa) | Yield Strength (MPa) | Relative Cost Index (France) |
|---|---|---|---|---|---|---|---|
| ASTM 201 (EN 1.4372) | 0.15% | 3.5% - 5.5% | 16.0% - 18.0% | 5.5% - 7.5% | ≥ 515 | ≥ 260 | 100% (Baseline) |
| ASTM 304 (EN 1.4301) | 0.08% | 8.0% - 10.5% | 18.0% - 20.0% | ≤ 2.0% | ≥ 505 | ≥ 215 | 145% |
| ASTM 316L (EN 1.4404) | 0.03% | 10.0% - 14.0% | 16.0% - 18.0% | ≤ 2.0% | ≥ 485 | ≥ 170 | 190% |
Liaocheng sihe stainless steel material LTD (From China) operates six advanced production lines and is a leading manufacturer in the field of high-quality stainless steel coiled tube, stainless steel polishing tube, and stainless steel seamless coiled tubing.
Our production standards strictly adhere to GB, ASTM, ASME, JIS, and EN specifications. We process premium steel grades including: 304/304L, 316L, 321, 317L, 309S, 310S, and INCOLOY 800, alongside specialized alloys like Austenitic steel 316L, Duplex 2205, Super Duplex 2507, Incoloy 825, and Inconel 625.
With over ten years of history and advanced bright annealing technology, we offer inline heat treatment ensuring a uniform structural matrix. Our testing facilities include pneumatic, hydrostatic, flaring, flattening, hardness (100%), and tensile testing to guarantee 100% defect-free delivery.
We support various materials (e.g., 304, 316L, 2205) and custom outer diameter configurations (6.35mm to 19mm / 0.125 inch to 1 inch) for stainless steel coiled tubing and straight structural pipes.
Our workshop offers specialized bending, spiral forming, orbital coil joining, and precision drawing processes tailored for specialized heat exchangers and structural design frameworks.
We utilize precision laser cutting, CNC mechanical cutting, and high-speed mechanical straightening machines to ensure close dimensional tolerance and zero surface scratch degradation.
We specialize in electro-polishing, mechanical satin brushing (Grit 240/320), and high-gloss mirror finishes (Grit 400/600) to fulfill strict architectural aesthetics.
Our end flanging, expansion, and reduction processes provide perfect fit-up for automotive exhausts, chemical piping networks, and structural joint attachments.
Utilizing high-purity hydrogen atmosphere continuous furnaces, we deliver scaling-free, bright, and clean surfaces, maintaining peak corrosion resistance.
Our products are widely exported and specified for a range of critical engineering and architectural environments across Europe, America, and Asia.
Precisely rolled SUS201 standard decoration tubes for high mechanical load applications.
Industrial grade chemical resistance plates for manufacturing environments.
Economical magnetic-grade stainless steel sheet suited for indoor panels.
Precision CNC-machined structural connectors for high-pressure fluid networks.
High flatness, close tolerance cold-rolled sheets for fabrication shops.
Micro-diameter precision tubing designed for medical and electronics parts.
Seamless long-length coiled tubes for hydraulic control lines.
Premium alloy 316 grade thin-wall capillary tubing for instruments.
Standard construction thickness sheeting with superior mechanical drawing properties.
Pressure tested coil systems ready for chemical injection lines.
Offshore-grade corrosion resistant alloy tubes designed for extreme subsea control systems.
Ultra-precision instrumentation tubing constructed with tight internal tolerances.