Shandong Baimaoxing Iron and Steel Co., Ltd.
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Wholesale Round Stainless Steel Pipes from China Suppliers - SCH20, SCH40, SCH80, 316L, 410, 420, 430, 409, 304 Factory Direct

Stainless steel pipes, manufactured in China, are available in three primary shapes: round, square, and rectangular. Our factory offers a range of grades including 201, 304, and the highly corrosion-resistant 316L, which is ideal for harsh environmental conditions. We provide various surface finishes such as 2B, brushed, and mirror, while the wall thickness ranges from 0.3 to 12mm. For square and rectangular pipes, widths vary from 10 to 200mm. Standard lengths are 6 meters, with options for custom sizes to meet your unique needs. These versatile pipes are perfect for decoration, fluid transport, and framing, combining remarkable durability with modern aesthetics. As reliable suppliers, we ensure top-quality stainless steel solutions for all your projects

    Stainless Steel Pipes
    • 🛡️Superior Corrosion Resistance — Grades 201, 304, and 316L available; 316L excels in harsh and corrosive environments.
    • 💪High Tensile Strength & Ductility — Withstands pressure, moisture, and temperature fluctuations reliably.
    • ✂️Easy to Customize — Can be cut, welded, or bent; available in round, square, and rectangular types.
    • Aesthetic Finishes — 2B, brushed, and mirror finishes blend functionality with visual appeal.

    Stainless steel pipes are essential across diverse industries. Their core advantages include strong corrosion resistance, high tensile strength, and good ductility, making them able to withstand pressure, moisture, and temperature fluctuations. With sleek finishes (2B, brushed, mirror), they offer a longer service life than carbon steel pipes.

    Applications span multiple sectors: construction uses them for curtain wall supports and handrails; fluid transport relies on them for water, oil, or chemical pipelines (316L for corrosive fluids); machinery manufacturing employs them as equipment frames; kitchen and bathroom areas use them for sink drains and towel racks; municipal projects adopt them for street light poles and drainage systems.

    Installation requires pre-treatment — degreasing and derusting the surface. Connection methods depend on scenarios: welding for high-pressure pipelines, threaded joints for easy disassembly, and flanges for chemical systems to prevent leaks. Post-installation, seal joints and clean residues promptly.

    In use, avoid direct contact with carbon steel to prevent galvanic corrosion; outdoor pipes need expansion joints for thermal expansion/contraction. For acidic/alkaline media, choose 316L and inspect for cracks regularly.

    Maintenance is straightforward: clean with neutral detergent daily; remove minor rust with specialized removers then re-passivate; check connections quarterly for tightness. Store in dry, ventilated areas to avoid moisture-induced rust, ensuring long-term reliable performance.

    Wholesale Sch20, Sch40, SCH80 round stainless steel pipes, 316L, 410, 420, 430, 409, 304, 316 seamless stainless steel pipes (12)Wholesale Sch20, Sch40, SCH80 round stainless steel pipes, 316L, 410, 420, 430, 409, 304, 316 seamless stainless steel pipes (13)
    Product Parameters
    📦 MOQ: 1 Ton 🚚 Delivery: 10 Working Days 💳 T/T · L/C · Western Union
    Product Name Stainless Steel Pipe
    Material Type Stainless Steel Square Tube Pipe
    Items Square tubes, rectangular tubes, round tubes
    Thickness 0.08mm – 100mm
    Specifications 1. Outer diameter (pipe) Round tube: 2mm – 20320mm
    2. Square tube: 5mm – 2000mm
    3. Rectangular tube: 10×20mm to 120×180mm  |  Thickness: 0.16mm to 4.0mm
    Surface Polishing, Annealing, Pickling, Bright
    Technology Hot Rolling  /  Cold Rolling
    Steel Grade 304, 304L, 309S, 310S, 316, 316Ti, 317, 317L, 321, 347, 347H, 304N, 316L, 316N, 201, 202
    Standard ASTM A213, A312, ASTM A269, ASTM A778, ASTM A789, DIN 17456, DIN17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, GB13296
    Tolerance a) Outer Diameter: ±0.5mm
    b) Thickness: ±0.05mm
    c) Length: ±5mm
    Test Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment test
    Packing Standard export packing
    Payment T/T, L/C, Western Union
    Delivery Time 10 working days upon receipt of the deposit
    MOQ 1 Ton
    Application Decoration, Construction, Upholstery, Water supply, Handrail, Railing, Staircase, Door, Window, Balcony, Fence, Bench, Furniture, etc.
    Machining Custom, Kaiping, Cutting, Pattern
    Used In Factory, Decoration, Food industry
    Packing And Shipping
    Wholesale Sch20, Sch40, SCH80 round stainless steel pipes, 316L, 410, 420, 430, 409, 304, 316 seamless stainless steel pipes (14)High Quality Stainless Steel 201 304 316L Stainless Steel Sheet Plate
    Frequently Asked Questions (FAQ)
    QWhat is the difference between 304 and 316L stainless steel pipes?
    Grade 304 is the most widely used stainless steel, offering good corrosion resistance for general environments. Grade 316L contains added molybdenum, which significantly enhances resistance to chlorides and acidic/alkaline media, making it the preferred choice for harsh or corrosive environments such as chemical processing and marine applications.
    QWhat sizes and specifications are available for your stainless steel pipes?
    We offer a wide range: round tubes with outer diameters from 2mm to 20,320mm, square tubes from 5mm to 2,000mm, and rectangular tubes from 10×20mm to 120×180mm. Wall thickness ranges from 0.08mm to 100mm. Custom dimensions are available upon request.
    QWhat surface finishes are available for the stainless steel pipes?
    We provide multiple surface finish options including 2B (standard mill finish), brushed (satin), mirror polished, annealed, and pickled finishes. The choice of finish depends on the application — decorative projects typically use mirror or brushed finishes, while industrial applications often use 2B or pickled finishes.
    QWhat is the minimum order quantity (MOQ) and lead time?
    The minimum order quantity is 1 ton. Standard delivery time is 10 working days upon receipt of the deposit. For large or custom orders, lead times may vary — please contact us for a specific timeline.
    QHow should stainless steel pipes be maintained to ensure long service life?
    Clean pipes regularly with a neutral detergent to prevent buildup. For minor rust spots, use a specialized stainless steel rust remover followed by re-passivation. Inspect connection joints quarterly for tightness. Store pipes in dry, well-ventilated areas away from moisture and direct contact with carbon steel to prevent galvanic corrosion.
    QWhat international standards do your stainless steel pipes comply with?
    Our stainless steel pipes comply with a wide range of international standards including ASTM A213, ASTM A312, ASTM A269, ASTM A778, ASTM A789, DIN 17456, DIN 17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, and GB13296, ensuring quality and compatibility for global projects.

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