Sihe Steel
Sihe Steel
Discover our primary selection of industrial pipes, coils, and plates manufactured to global industry standards including GB, ASTM, ASME, JIS, and EN.
Precision-polished SUS304 tubing designed for high-purity fluid transport and sanitary processing environments.
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High-strength Type 410 martensitic stainless steel sheets and coils, perfect for wear-resistant applications.
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S31008 high-temperature resistant stainless steel coiled pipes for heat exchangers and furnace systems.
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Titanium-stabilized alloy 321 coiled tubing showing excellent mechanical properties and resistance to intergranular corrosion.
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Marine-grade 316L stainless steel welded pipes designed for harsh chemical processing and offshore environments.
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EN 1.4301 standard polishing tubes utilizing optimized heat treatment protocols for superior surface reflectivity.
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Micro-bore 304 capillary tubing for medical, chromatography, and high-precision temperature sensing instruments.
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Cost-effective ferritic 430 stainless steel welded piping offering moderate corrosion protection for architectural projects.
View DetailsIn modern industrial process engineering, mechanical filtration systems serve as critical guardrails for fluid purity, system reliability, and environmental protection. Among these systems, the Perforated Metal Mesh Sheet Filter holds a central position due to its high mechanical strength, thermal stability, and long service life. Acting as both primary strainer media and supporting backings for finer mesh components, these engineered sheets are deployed across applications from heavy petrochemical refining to high-purity biopharmaceutical processing.
To optimize these systems, design engineers must understand the relationship between hole geometries, open area calculations, material configurations, and pressure drop curves. Modern industrial standards demand more than simple metal screens; they require precisely perforated substrates manufactured from high-corrosion-resistant alloys like SUS304, SUS316L, Duplex 2205, and exotic nickel superalloys (such as Inconel 625 and Incoloy 825) that can withstand abrasive environments without yielding to chemical attack.
The primary performance indicator of a perforated metal sheet filter is its Open Area Ratio (OAR). The OAR directly dictates the pressure drop ($\Delta P$) across the filtration element, the volumetric flow rate capacity, and the particle size cutoff. The mathematical formula for computing the open area percentage of a standard 60-degree staggered round-hole pattern is:
Where D represents the hole diameter, and P represents the pitch (distance between the centers of adjacent holes). A higher open area minimizes flow resistance, lowering energy consumption for pump systems, but reduces the structural integrity of the sheet. Balancing these properties requires experienced metallurgists and precise manufacturing technology, ensuring the filter elements resist deformation under high-pressure backwashing operations.
Liaocheng Sihe Stainless Steel Material LTD: Setting standard-compliant benchmarks for global metallurgy and process filter media.
Founded on a commitment to precision engineering, Liaocheng sihe stainless steel material LTD operates six dedicated production lines designed for high-performance steel and alloy processing. Our product range includes high-purity stainless steel coiled tubing, polishing tubes, seamless coiled tubing, and premium-grade perforated metal sheet filters.
By implementing advanced online bright annealing technology, we can continuously soften stainless steel tubing and sheet surfaces, removing internal stress while maintaining a mirror-like, oxide-free finish. This surface treatment is essential for sanitary applications in the semiconductor, biotechnology, and pharmaceutical industries.
Our dimensional fabrication limits include coiled tubing and capillary systems ranging from 0.125 inches (3.175 mm) to 1 inch (25.4 mm) outer diameter, with wall thicknesses up to 0.165 inches (3 mm). Special sizes, hole shapes, pitches, and tailored alloy composition configurations are designed, manufactured, and shipped to meet specific customer requirements.
Understanding the cost structures, supply chain efficiencies, and technical standards that make Chinese sourcing competitive.
Purchasing perforated metal mesh sheet filters from China offers key advantages for global buyers, primarily due to localized manufacturing efficiency. By partnering with advanced manufacturers like Liaocheng Sihe Stainless Steel, procurement officers gain access to optimized production ecosystems that balance cost with high quality.
Our close relationships with domestic steel mills ensure a steady, reliable supply of high-grade SUS304, 316L, and Duplex alloys. This structural integration stabilizes base costs and shields global buyers from volatile price fluctuations.
High-speed multi-pin CNC punch presses permit complex patterns to be executed quickly. Advanced tooling reduces wear, eliminates burrs, and delivers uniform hole shapes with tolerances within ±0.05 mm.
We support customized configurations, including specific margins, unperforated zones, staggered vs. straight patterns, post-forming surface treatments (electropolishing, pickling), and custom outer dimensions.
Pricing for perforated filtration media is calculated using several core parameters. By understanding these variables, procurement managers can design elements that meet technical requirements without unnecessary costs:
Compare material options, mechanical properties, and limits for perforated mesh filters and industrial tubing components.
| Steel Grade / Alloy Type | UNS Designation | Yield Strength (MPa) | Max Operating Temp (°C) | Corrosion & Acid Resistance Index | Primary Industrial Applications |
|---|---|---|---|---|---|
| Austenitic 304 / 304L | S30400 / S30403 | ≥ 205 | 800 | Moderate (Atmospheric / Fresh Water) | Food processing, domestic water, HVAC strainers |
| Austenitic 316 / 316L | S31600 / S31603 | ≥ 220 | 850 | High (Chloride / Marine Environments) | Marine filters, pharmaceutical vessels, chemical pipelines |
| Duplex 2205 | S32205 / S31803 | ≥ 450 | 300 | Very High (Stress Corrosion Cracking Resistant) | Deep-well gas extraction, oil wells, petrochemical scrubbers |
| Super Duplex 2507 | S32750 | ≥ 550 | 310 | Exceptional (Pitting & Crevice Corrosion Resistant) | Desalination plants, chemical reaction columns |
| Incoloy 825 | N08825 | ≥ 220 | 540 | Excellent (Reducing & Oxidizing Acids) | Sulfuric acid environment filters, oil/gas production |
| Inconel 625 | N06625 | ≥ 415 | 980 | Extreme (High-Temp Oxidation & Chlorides) | Aerospace, combustion systems, deep offshore umbilicals |
Tailored structural fabrication processes, surface finishing, and quality tests supporting global filtration needs.
We manufacture customized stainless steel coils and perforated filters in diverse materials (e.g., 304, 316L, 2205) and custom specifications, handling coil diameters from 6.35mm to 19mm.
Our specialized fabrication services include precision bending, spiral forming, coiling, and precision drawing, designed to produce optimal tube bundles for heat exchangers.
We offer laser cutting, mechanical abrasive cutting, and flame cutting. These processes enable clean edge finishing, precise length tolerances, and high-efficiency material prep.
We offer surface preparation techniques to improve corrosion resistance. These include online bright annealing, chemical pickling, mechanical polishing, and electropolishing.
Our custom flanging and collar forming services are widely utilized in automotive exhaust systems, chemical pipelines, and high-precision instrument connections to create strong, leak-free seals.
Discover where our stainless steel materials and filter products are deployed in demanding processing environments globally.
Liaocheng Sihe Stainless Steel Material LTD is an established manufacturer of high-precision stainless steel coiled tubing, polishing tubes, and seamless coiled lines. Over the last decade, we have scaled our fabrication capabilities to supply demanding global markets, including the United States, Germany, Spain, South America, Southeast Asia, the Middle East, and Eastern Europe.
Our facility combines raw steel processing with downstream finishing. The core of our production line is an advanced bright annealing furnace that operates inline under a controlled inert gas environment. This prevents surface oxidation and preserves a smooth, highly reflective surface finish. This bright annealed condition is essential for high-purity processing piping, heat exchanger tubes, and filtration units.
To ensure high performance in harsh offshore oil wells and high-pressure chemical reactions, we implement a comprehensive quality control program. Our testing processes include hydrostatic pressure testing, air tightness testing, 100% hardness confirmation, flaring expansion tests, flattening tests, and microscopic grain structure analysis. Through this testing regimen, we maintain product quality and safety for critical piping systems worldwide.
Liaocheng Sihe products are manufactured to rigorous international standards. Below are our mill certifications and quality assurance credentials.
Find answers to common questions about specifications, ordering processes, pricing, and shipping.
Our prices are variable and subject to change based on raw material costs (LME Nickel/Molybdenum indexes), order volumes, and customization requirements. Please contact our sales team with your specifications, and we will prepare a detailed quotation and current pricelist for you.
Yes, we require minimum order quantities for international shipments to ensure production efficiency and cost-effective shipping. Please discuss your project volume requirements with our sales team so we can find a suitable solution.
Yes, we provide standard documentation, including Certificates of Analysis/Conformance (EN 10204 3.1 Mill Test Reports), Certificate of Origin, export documentation, and packing lists to support import customs clearance.
Our standard lead time for samples is approximately 7 days. For bulk production orders, the standard lead time is 20 to 30 days following receipt of deposit and technical approval. We work with clients to coordinate delivery dates with project schedules.
We accept payments via direct wire transfer (T/T), L/C, Western Union, and PayPal. Our standard term is a 30% deposit in advance, with the remaining 70% balance due upon presentation of the copy of the Bill of Lading (B/L).
We warrant our raw materials and workmanship. In the event of material defects or dimensional non-conformance, our quality assurance team works to resolve issues through replacement or credit, ensuring client requirements are met.
Yes, we package products to withstand long-distance maritime transport. This includes reinforced steel frames, wooden boxes, and anti-corrosive plastic wrapping. Specialized packaging requirements can be accommodated upon request.
Shipping fees are calculated based on total cargo weight, volume, transport mode (sea freight, air freight, or express), and the destination port. We offer both FOB and CIF terms, allowing clients to utilize their own freight forwarders or our logistics network.
Duplex 2205 stainless steel contains balanced austenitic and ferritic structures, offering high resistance to stress corrosion cracking.
1/2-inch stainless steel coiled tubing designed for high-pressure control lines in oil and gas wells.
High-temperature grade 310 stainless steel tubing designed for thermal applications and combustion chamber piping.
Explore our range of precision-welded pipes, duplex tubing, capillary coils, and specialized connection fittings.
SUS202 welded tubing designed for automotive exhaust systems, combining moderate corrosion resistance with strength.
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Super Duplex 2507 capillary tubing designed for high-stress applications in corrosive marine and chemical environments.
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Seamless 304/304L coiled tubing designed for hydraulic controls and chemical injection systems.
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Precision-dimensioned 9.52*1.24mm 304 stainless steel coiled tubing, suitable for refrigeration systems.
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Standard-compliant JIS 4304 SUS304 sheets and plates, suitable as substrate materials for perforated mesh filters.
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High-precision TP316L stainless steel pipes manufactured to ASTM standards for critical medical and semiconductor systems.
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Grade 201 precision stainless steel pipes, offering a balance of strength and affordability for indoor structural piping.
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Threaded male connectors and union joints designed to ensure leak-free connections in high-pressure piping assemblies.
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