Sihe Steel
Sihe Steel
Premium structural pipes and tubing solutions optimized for maritime and industrial applications across the Dutch sectors.
The industrial landscape of the Netherlands is defined by high-precision marine architecture, massive logistics hubs like the Port of Rotterdam, advanced greenhouse systems, and a push toward smart manufacturing. In this setting, material selection is critical to balance cost-efficiency, mechanical strength, and reliable service lifetimes. While Grade 304 and 316 remain standard for severe offshore exposures, Grade 202 (1Cr18Mn8Ni5N) is increasingly utilized as a high-strength, cost-effective alternative for structural, secondary piping, and controlled-exposure environments.
Grade 202 is an austenitic chromium-manganese-nickel stainless steel modified with nitrogen. By replacing a portion of the nickel content with manganese and nitrogen, it achieves a yield strength nearly double that of traditional Grade 304 while offering significant cost stability against volatile global nickel prices.
In the Netherlands, this alloy is utilized in several key applications:
A deep dive into the chemical and mechanical profiles, detailing the performance window of Grade 202 in industrial systems.
| Specification Parameter | Grade 202 (UNS S20200) | Grade 304 (UNS S30400) | Grade 316 (UNS S31600) |
|---|---|---|---|
| Chromium (Cr) % | 17.0 - 19.0 | 18.0 - 20.0 | 16.0 - 18.0 |
| Nickel (Ni) % | 4.0 - 6.0 | 8.0 - 10.5 | 10.0 - 14.0 |
| Manganese (Mn) % | 7.5 - 10.0 | 2.0 max | 2.0 max |
| Nitrogen (N) % | 0.25 max | 0.10 max | 0.10 max |
| Molybdenum (Mo) % | - | - | 2.0 - 3.0 |
| Yield Strength Rp0.2 (MPa) | ≥ 275 | ≥ 205 | ≥ 220 |
| Tensile Strength Rm (MPa) | ≥ 640 | ≥ 515 | ≥ 515 |
| Hardness (HRB) | ≤ 95 | ≤ 92 | ≤ 95 |
The inclusion of 7.5% - 10% Manganese in Grade 202 stabilizes the austenitic matrix, allowing for a reduction in expensive Nickel. The introduction of Nitrogen (N) acts as a strong interstitial solid-solution strengthening agent, increasing the yield strength by approximately 35% compared to Grade 304. This enables engineers in the Netherlands to design lighter structural frameworks and thinner wall-thickness configurations for non-marine infrastructure.
With a Chromium level of 17% and lower Nickel content, Grade 202 exhibits moderate corrosion resistance. Its Pitting Resistance Equivalent Number (PREN) is lower than Grade 304, meaning it is not recommended for direct immersion in marine salt-spray zones or acidic chemical process pipes. However, for interior structural tubes, enclosed exhaust systems, and climate-controlled agricultural applications, it delivers reliable durability at a significantly lower initial cost.
Established as a premier manufacturing facility in China, Liaocheng Sihe Stainless Steel Material Ltd operates six high-capacity production lines dedicated to high-precision stainless steel coiled tubes, capillary tubes, and welded piping. We strictly adhere to global standards including ASTM, ASME, JIS, GB, and EN to ensure that every delivery meets the technical expectations of European engineering firms.
Our facility handles austenitic and duplex alloys, including 304/304L, 316L, 321, 317L, Duplex 2205, Super Duplex 2507, and high-nickel alloys like Incoloy 825 and Inconel 625. Our online bright annealing technology allows us to achieve precise mechanical softening and mirror-like surface finishes directly on the production line, ensuring optimal bending and flanging properties.
Tailored fabrication services ensuring seamless integration into your final assemblies.
Supporting precise structural curvature, spiral forming, and customized radius adjustments for complex heat exchangers and marine exhaust configurations.
Clean, burr-free cuts matching dimensional tolerances down to ±0.05 mm. Reduces secondary prep work for immediate site welding.
Providing custom flanging services, ideal for rapid-connect couplings, automotive manifolds, and chemical instrumentation fittings.
How Grade 202 and our specialty alloys integrate into the strategic industrial segments of the Netherlands.
Securing stable material flows and transparent documentation from Liaocheng Sihe to European ports.
Shipping directly from the major ports of Qingdao and Tianjin to the Port of Rotterdam. Standard maritime transit averages 25 to 35 days, supported by clean bills of lading, customized custom clearance documentation, and tracking links.
To prevent atmospheric saline corrosion during long sea transit, we utilize heavy-duty export packaging, including vacuum-sealed polymer wrapping, robust wooden boxes, and anti-corrosive desiccants inside bundles.
Before cargo release, every batch undergoes mandatory non-destructive tests (NDT) including Eddy Current testing, hydrostatic pressure validation, flaring, flattening, hardness, and metallurgical grain structure evaluations.
Evaluating how Grade 202 fits into European sustainability directives, decarbonization pathways, and the circular economy.
The manufacturing process of Grade 202 is optimized to minimize carbon footprint. By replacing a large percentage of Nickel (which requires energy-intensive extraction and refining processes) with Manganese, the cradle-to-gate embodied carbon emissions are reduced. This supports Dutch construction firms attempting to optimize their environmental profiles under the Dutch Milieudatabase (NMD) frameworks.
Stainless steel is 100% recyclable. Grade 202 structural pipes and tubing can be fully reclaimed and melted down to create new steel products, aligning directly with the Netherlands' ambitious governmental roadmap to achieve a fully circular economy by 2050.
Get direct answers regarding mechanical limitations, shipping options, local compliance, and price quotes.
A comprehensive selection of piping, capillary tubes, and sheets for diverse engineering applications in the Netherlands.
