Import 316 316l Stainless Steel Porous Filter Tube — Buy in wholesale FOB from Supplier in China

Sintered porous filter tubes in 316 and 316L stainless steel from Anping County Longyi Mesh Manufacture Co., Ltd are depth filtration elements with interconnected pore networks of tortuous geometry for solid particle retention in gas or liquid streams. The 316L variant offers enhanced corrosion resistance against chlorides and acids compared to standard 316, with both grades exhibiting superior mechanical strength under differential pressure. These tubes withstand continuous operating temperatures up to 399 degrees Celsius in oxidising environments and 482 degrees Celsius in reducing conditions, making them suitable for aggressive chemical processing and thermal applications.

The manufacturing process creates a rigid, self-supporting structure from layered and sintered stainless steel powder or mesh, yielding consistent porosity distribution without binders or media migration. Typical wall thicknesses range from 1.0 to 5.0 millimetres with porosity levels between 30 and 50 percent, though the supplier's exact stock dimensions require direct confirmation. Cleaning methods include ultrasonic bath immersion and reverse-flow flushing, which restore permeability without structural degradation across repeated cycles. For environments exceeding 316L capability, nickel-based alloy alternatives such as Hastelloy or Inconel can be specified against corrosive or high-temperature duty.

Primary applications span petrochemical refining, pharmaceutical sterile gas filtration, polymer melt processing, and power generation steam systems where particle retention below 100 microns is required. Buyers include original equipment manufacturers of filter housings, chemical plant maintenance contractors, and distributors serving the European and North American process industries. The supplier's location in Anping County positions it within China's primary wire mesh manufacturing cluster, with Hebei Province offering established logistics corridors to Tianjin Port for containerised export. Buyers should confirm minimum order quantities, available diameters, and end-connection options before finalising specifications.

Anping County Longyi Mesh Manufacture Co., Ltd is located at No. 88, Heping West Street, Anping Town, Hengshui City, Hebei Province, China, postal code 053600. Anping County is recognised as China's principal concentration for wire mesh and filtration product manufacturing, with hundreds of specialised producers operating within a concentrated industrial zone. The supplier holds a Harbor trust tier classification on the platform, indicating a verified business registration and basic credential submission, though this does not constitute third-party quality system certification. The response rate is recorded at 0.00 percent with average response hours of zero, which suggests the supplier may not actively monitor enquiries through this channel or has not generated sufficient transaction volume to register response metrics.

The company's commissioning profile does not disclose founding year, employee headcount, annual revenue, production floor area, or specific clientele. No ISO 9001, ASME, or PED certification numbers are listed, and buyers must independently verify quality management systems and material test reports. The supplier's product range centres on sintered metal filtration media, including disc filters, porous tubes, and mesh laminates in stainless steel and specialist alloys. Importers should request mill certificates for each lot, confirm alloy composition per ASTM A240 or EN 10088 standards, and establish whether the supplier maintains in-house sintering furnaces or sources semi-finished tubes from subcontractors.