Wholesale Round Stainless Steel Pipes from China Suppliers - SCH20, SCH40, SCH80, 316L, 410, 420, 430, 409, 304 Factory Direct
- 🛡️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.

| 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 |























