Stainless Steel Pipes & Tubes

304|304L, 316|316L, 310S, 317L, 321|321H, 347|347H, 904L• Seamless • Welded • Durable

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Pipes

Precision-Engineered Stainless Steel Pipes & Tubes by Ratnadeep Steel & Engg.

At Ratnadeep Steel & Engg. Co., where quality is not just a process, but a promise. We begin with the finest raw materials, subjecting them to rigorous testing and stringent quality control protocols managed by our seasoned experts. Every pipe and tube that bears our name is manufactured in full compliance with National and International Industrial Standards (such as ASTM, ASME, DIN, IS), ensuring performance you can rely on. Our dual expertise in both Seamless and Welded (ERW / EFW) manufacturing processes allows us to offer the perfect solution for your specific pressure, corrosion, and mechanical requirements.

  • 304 | 304L SS Pipes & Tubes
  • 316 | 316L SS Pipes & Tubes
  • 310S SS & Tubes
  • 317L SS Pipes & Tubes
  • 321 | 321H SS Pipes & Tubes
  • 347 | 347H SS Pipes & Tubes
  • 904L SS Pipes & Tubes

Our pipes are available in a variety size, including seamless, and welded, depending on the specific demands of your project.

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Factory Price

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Custom Size

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STAINLESS STEEL PIPE & TUBES SCHEDULE DIMENSIONS WALL THICKNESS, WT./MTR. (KG)

SS 304/304L Pipes & Tubes

Versatile and widely used, SS 304/304L offers excellent corrosion resistance, formability, and weldability. Manufactured to ASTM A312 and ASTM A213 standards. Ideal for food processing, architectural, and chemical plant applications. World Stainless provides technical resources for this grade.

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High-Temperature 310S SS Pipes

Superior oxidation resistance and high-temperature strength make 310S perfect for heat treatment furnaces, radiant tubes, and boiler components. Complies with ASTM A312 standards. Nickel Institute offers detailed technical data on high-temperature alloys.

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Corrosion-Resistant 316/316L Pipes & Tubes

Enhanced resistance against chlorides and acids makes 316/316L the go-to choice for marine, pharmaceutical, and petrochemical industries. Manufactured to ASTM A312 and ASTM A213 standards. IMOA provides excellent resources on molybdenum-containing stainless steels.

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317L Pipes for Harsh Chemical Environments

Better creep and stress-to-rupture strength than 316L, 317L is designed for pulp & paper, chemical process plants, and aggressive media handling. Complies with ASTM A312 standards. Outokumpu offers technical insights on high-performance stainless grades.

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321/321H Stabilized SS Tubes

Titanium-stabilized for superior intergranular corrosion resistance post-welding. Excellent for aerospace, automotive exhaust systems, and heat exchangers. Manufactured to ASTM A213 and ASTM A312. Special Metals Corporation provides technical data on stabilized grades.

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347/347H High-Temperature Pipes & Tubes

Columbium-stabilized for high-temperature service. Commonly used in aircraft engine parts, pressure vessels, and welded components in corrosive settings. Complies with ASTM A312 and ASTM A213. AZoM offers materials science resources for columbium-stabilized steels.

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Superaustenitic 904L SS Pipes

Exceptional resistance to sulfuric acid makes 904L essential for chemical, fertilizer, and seawater cooling industries. Manufactured to ASTM A312 standards. Outokumpu and Nickel Institute provide detailed resources on superaustenitic grades.

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Frequently Asked Questions About SS Pipes & Tubes

Which stainless steel grade is best for marine applications?

SS 316 and 316L are the most recommended grades for marine applications due to their excellent resistance to chloride-induced corrosion, pitting, and crevice corrosion in seawater environments. SS 904L is also used for highly corrosive marine conditions.

What is the difference between seamless and welded stainless steel pipes?

Seamless pipes are manufactured without any welded joint, offering higher strength and uniformity for high-pressure applications. Welded pipes are produced by rolling and welding flat strips, making them more cost-effective for general-purpose applications. The choice depends on your pressure, temperature, and budget requirements.

How quickly will I receive a quotation?

Most inquiries receive a response within one business day. Our team reviews your requirements promptly and provides pricing, availability, and technical details as quickly as possible.

Do you export stainless steel pipes internationally?

Yes. Ratnadeep Steel & Engg. Co. supplies stainless steel pipes and tubes to customers across Asia, the Middle East, Africa, Europe, and other international markets. We ensure compliance with global quality standards and timely delivery.

Can I request custom sizes and specifications?

Yes. We can manufacture stainless steel pipes and tubes according to customer drawings, project specifications, material grades, dimensions, and industry standards including ASTM, ASME, DIN, and IS specifications.

What is the difference between 304 and 316 stainless steel pipes?

SS 304 is the most commonly used grade offering good corrosion resistance and formability for general applications. SS 316 contains molybdenum, providing superior resistance to chlorides and acids, making it ideal for marine, pharmaceutical, and chemical processing applications.

Are stainless steel pipes suitable for high-temperature applications?

Yes. Grades like 310S, 321, 321H, 347, and 347H are specifically designed for high-temperature service. 310S offers excellent oxidation resistance up to 1150°C, while 321 and 347 grades provide superior creep strength at elevated temperatures.

What quality certifications do your products meet?

Our stainless steel pipes and tubes are manufactured in compliance with international standards including ASTM, ASME, DIN, EN, and IS. We provide Mill Test Certificates (MTC) and offer third-party inspection services upon request.

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Looking for premium 304|304L, 316|316L, 310S, 317L, 321|321H, 347|347H, 904L Pipes & Tubes? Contact us today to get the best prices.

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