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Top Stainless Pipe Manufacturer from China
Stainless Steel Pipe
Explore our extensive range of stainless steel pipes, offering austenitic, ferritic, and duplex grades to suit various industrial needs. With options for high-strength durability or enhanced corrosion resistance, we provide diverse finishes and compositions tailored to your demands. Our knowledge spans multiple stainless steel varieties, delivering top performance and cost efficiency at every price level. From standard sizes to fully customized designs, our dedicated team ensures solutions supported by industry-leading expertise.
Stainless Steel Pipe For Sale
Specifications: Standards and Classifications
Stainless steel pipes, prized for corrosion resistance and strength, adhere to standards like ASTM A312, A269, A790, ASME B36.19M, ISO 1127, and DIN EN 10217-7, covering seamless, welded, and duplex types. Available in grades like 304/316 (austenitic), 430 (ferritic), and S32205 (duplex), they range from 1/8” to 30” NPS, with wall thicknesses (Schedules 5S-80S, 0.3-50 mm) and lengths up to 12 meters. Classified by process (seamless/welded), material (austenitic/ferritic/duplex), and use (general, high-temperature, sanitary), they undergo rigorous testing to ensure quality for industries like oil, chemical, and food processing.
Size Range: Dimensions and Customization
Stainless Steel Pipes come in a wide range of sizes to suit diverse needs. Common dimensions include:
- Size Range: Standard sizes like stainless steel pipes with outer diameters (OD) from 1/8″ (3.175mm) to 48″ (1219mm) dominate, though options can range from smaller precision tubes to large industrial pipes.
- Wall Thickness: Thin stainless steel pipes start at 0.5mm and go up to 50mm or more, with common schedules like Sch 5, Sch 10, Sch 40, and Sch 80 (e.g., Sch 40 for 1″ pipe is ~3.38mm, Sch 80 is ~4.55mm).
- Length: Standard lengths are 6m (20ft), though custom lengths from a few centimeters to 12m or more are available for seamless or welded pipes.
- Custom Options: Suppliers offer cut-to-size services, allowing buyers to specify exact dimensions for stainless steel pipe thickness, diameter, or length needs.
This flexibility ensures Stainless Steel Pipes fit everything from small hydraulic systems to large industrial builds.
Types: Forms, Processes, and Finishes
Stainless Steel Pipes come in various types, forms, and finishes, each tied to specific manufacturing processes:
- Types/Forms: Stainless steel pipes include seamless pipes (for high-pressure applications), welded pipes (for cost-effective large-diameter needs), and specialized forms like U-shaped or coiled tubing for heat exchangers or custom installations.
- Processes: Cold-drawn stainless steel pipes offer a smooth, precise finish (e.g., ideal for sanitary applications), while hot-extruded pipes suit thicker walls and high-temperature uses. Seamless pipes are formed through piercing and rolling, while welded pipes use TIG or ERW methods for durability.
- Surface Treatments: Options include pickled and passivated (for corrosion resistance), polished (mirror or satin finish for aesthetics), and bead-blasted finishes. Specialized coatings like electropolishing can enhance cleanliness for food or medical applications.
This flexibility ensures Stainless Steel Pipes fit everything from precision instrumentation to heavy industrial systems.
Applications: Common Grades and Uses
| Model | Features | Applications |
|---|---|---|
| 304 Stainless Steel Pipe | Good corrosion resistance, Weldable, Formable | Food processing, Architecture |
| 316 Stainless Steel Tube | Superior corrosion resistance, Mo-enhanced | Marine, Medical devices |
| 430 Stainless Steel Pipe | Mild corrosion resistance, Magnetic, Cost-effective | Automotive trim, Appliances |
| 321 Stainless Steel Tube | High-temp strength, Corrosion-resistant | Aerospace, Exhaust systems |
Frequently Asked Questions
Q:What is a stainless steel pipe?
A:A stainless steel pipe is a hollow tube made from corrosion-resistant alloys like 304 or 316, used for transporting liquids, gases, or solids in industries such as construction, food processing, and chemical manufacturing.
Q:What is the difference between 304 and 316 stainless steel pipe?
A:304 stainless steel pipe offers good corrosion resistance for general use, while 316, with added molybdenum, excels in marine or chloride-rich environments due to superior pitting resistance.
Q:Where are stainless steel pipes used?
A:Stainless steel pipes are used in plumbing for water systems, food industries for hygienic transport, marine for seawater lines, and chemical plants for corrosive fluid handling due to their durability.
Q:Is stainless steel pipe stronger than steel pipe?
A:Stainless steel pipe is often less strong than carbon steel pipe in terms of raw strength (e.g., 500-700 MPa vs. 800 MPa), but its corrosion resistance and longevity make it preferable in harsh conditions.
Q:Do stainless steel pipes rust?
A:Stainless steel pipes resist rust due to chromium forming a protective oxide layer, but 304 may rust in saltwater, while 316 performs better. Proper maintenance prevents rust in extreme environments.
Q:How long do stainless steel pipes last?
A:Stainless steel pipes can last 20-50 years, depending on the grade and environment. In mild conditions, 304 lasts 20-30 years, while 316 can endure 40-50 years in marine or chemical settings with care.