Stainless Steel Pipe and Tube ā Steel Products by Mailong Metal
Stainless Steel Pipe And Tube
Stainless Steel Pipe And Tube ā Reliable Piping Solutions
MAILONG METAL PRODUCTS CO.,LTD. manufactures and supplies welded and seamless stainless steel pipes in 304, 316L, and other standard and special grades, designed for construction, fluid transportation, and structural applications. With strict quality control, stable material performance, and export-ready specifications, our stainless steel pipes ensure reliability, corrosion resistance, and long-term service life in demanding environments.
Why Buy From mailongmetals?
- Full stock of stainless steel pipe (304/316L/321/347) in all sizes
- Seamless & welded options with quick-delivery schedules
- Custom cutting, threading, and pressure testing available
- Mill certificates and hydrostatic test reports included
- Expert guidance for pipe selection & installation
- Global distribution network with competitive pricing





Frequently Asked Questions
1. What is stainless steel pipe and tube?+
Stainless steel pipe and tube are cylindrical products manufactured from corrosion-resistant iron-chromium-nickel alloys, available in seamless or welded construction for fluid transport, structural support, and high-pressure applications.
2. What industries use stainless steel pipes and tubes?+
They are essential in oil and gas production, chemical processing, food and beverage manufacturing, pharmaceutical plants, power generation, marine systems, and construction.
3. What is the difference between seamless and welded stainless steel pipe?+
Seamless pipe is drawn from a solid billet, offering superior strength and corrosion resistance for high-pressure applications. Welded pipe is formed from flat stock and is more economical for general use.
4. What are the most common stainless steel pipe grades?+
Popular grades include 304, 316L, 321, 347, duplex, and super-duplex, each selected based on corrosion environment, temperature, and mechanical requirements.
5. What temperature range can stainless steel pipes withstand?+
Standard grades like 304 perform well to 600°C, while 316L handles moderate corrosion up to 425°C. Higher-grade materials extend these limits significantly.
6. Why is corrosion resistance important in pipe selection?+
Stainless steel's chromium oxide layer prevents rust and degradation in challenging environments like seawater, acidic chemicals, and humid conditions, ensuring long service life.
7. What are the available pipe schedules and wall thicknesses?+
Pipes are available in various schedules (10S, 20, 40, 80, 160) and wall thicknesses from 0.7 mm to 12.7 mm, meeting ASTM A312 and A213 specifications.
8. Are stainless steel pipes easy to weld?+
Yes, most grades exhibit good weldability using TIG or GTAW processes, though heat control is essential to prevent sensitization and preserve corrosion resistance.
9. What certifications do your stainless steel pipes comply with?+
Our pipes conform to ASTM A312, A213, EN 10216-5, and ISO 1127 standards, with mill certificates, chemical analysis, and mechanical test reports available.
10. How do I select the right pipe grade for my application?+
Consider operating pressure, temperature, fluid chemistry, and cost. For corrosive environments, 316L is ideal; for higher temperatures, grades like 321 or 347 are recommended.
Let Us Know Your Required Grade
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