309 Stainless Steel Welded Tubes

Manufacturers of 309 Stainless Steel Welded Tubes engineered for high-temperature applications, offering excellent oxidation resistance, strong mechanical stability, and reliable performance in heat-intensive industrial environments.

ISO 9001:2015 • ISO 14001:2015 • ISO 45001:2018 • PED 2014/68/EU Certified

309 Stainless Steel Welded Tubes

Our 309 Stainless Steel Welded Tubes are specifically designed for high-temperature applications where excellent oxidation resistance and mechanical strength are critical. With a high chromium and nickel content, 309 stainless steel maintains structural stability and corrosion resistance in severe heat-intensive environments.

The welded construction ensures uniform strength, dimensional accuracy, and cost efficiency, while the smooth internal and external surface finish enhances resistance to scaling, oxidation, and surface degradation at elevated temperatures. These tubes are built to perform reliably under continuous thermal stress.

Widely used in furnaces, kilns, heat exchangers, petrochemical processing, power generation, and aerospace applications, 309 stainless steel welded tubes offer dependable, long-lasting performance. Available in a wide range of sizes and customizable specifications, they provide an efficient solution for extreme operating conditions requiring durability and heat resistance.

309 Stainless Steel Welded Tubes

Comprehensive Reach

Our 309 Stainless Steel Welded Tubes are trusted in Mumbai and other key cities across India, serving industries that operate under high-temperature and heat-intensive conditions.

In the Middle East, countries such as Iraq, Kuwait, Jordan, Lebanon, Saudi Arabia, Yemen, Oman, and the UAE—including Abu Dhabi, Dubai, Al Ain, Ajman, Sharjah, and Ras Al Khaimah—rely on our products for oil & gas, thermal processing, and infrastructure projects exposed to extreme heat.

We are also a preferred supplier in Qatar (Doha), Bahrain, Syria, Azerbaijan, and Georgia, where industries demand stainless steel tubes with excellent oxidation resistance and structural stability at elevated temperatures.

Across Europe, our pipes and tubes are widely supplied to Italy, Spain, Germany, the United Kingdom (England, Wales, Scotland, and Ireland), Russia, Ukraine, Kazakhstan, Turkey, France, Greece, and Austria, supporting furnace systems, power plants, petrochemical facilities, and heavy manufacturing sectors.

Africa, Americas & Asia-Pacific

Across Africa, industries in Morocco, Algeria, Libya, Egypt, Nigeria, Sudan, Chad, Senegal, Kenya, Somalia, Zambia, South Africa, and Namibia trust our 309 stainless steel welded tubes for their ability to withstand high temperatures, oxidation, and harsh environmental conditions.

In the Americas, our products are supplied to the United States, Brazil, Argentina, Mexico, and Canada, supporting power generation, heat exchangers, oil & gas, and industrial furnace applications.

Our reach extends across the Asia-Pacific region, including Sri Lanka, Malaysia, Singapore, Philippines, Thailand, Vietnam, and Australia, where heat-resistant welded tubes are widely used in mining, thermal processing, and water treatment industries.

Commitment to Quality

Wherever your project is located—whether in Doha, Dubai, London, Moscow, or New York—Seminox Pipes and Tubes delivers premium 309 Stainless Steel Welded Tubes manufactured in compliance with international standards.

Our global presence reflects the trust industries place in our ability to supply reliable, heat-resistant, and high-performance stainless steel tube solutions for demanding industrial environments worldwide.

Key Features of 309 Stainless Steel Welded Tubes

High Chromium & Nickel Content

Elevated chromium and nickel levels provide excellent resistance to oxidation and scaling at high temperatures.

Outstanding Heat Resistance

Designed for continuous service in high-temperature environments, making it ideal for furnaces, kilns, and thermal processing systems.

Excellent Oxidation & Corrosion Resistance

Performs reliably in oxidizing and mildly corrosive atmospheres, maintaining structural stability under extreme heat.

Robust Welded Construction

Manufactured using advanced welding technology to ensure strong weld seams, dimensional accuracy, and consistent mechanical performance.

Smooth Surface Finish

Smooth internal and external finishes reduce scaling, improve flow efficiency, and enhance overall durability.

Ideal for Heat-Intensive Applications

Widely used in furnaces, heat exchangers, petrochemical plants, power generation, and aerospace industries.

Product Specification:

Outside Diameter Range
1/8" NB TO 8" NB
Wall Thickness Range
SCH 5S to SCH 80S
Length
As per Requirement. Maximum up to 24 Meter long.
Grades
304/L/H/LN, 316/L/H/LN/Ti, 309, 310/L/H/S, 317/L/H, 321/H, 347/H, UNS S31500, UNS S31803, UNS S2205, UNS S32750, UNS S32760
Specification
ASTM A-312, A-554, A-778, A-790
Supply Condition
Solution–Annealed, pickled and passivated. Can be supplied in other conditions on requirement.
Application
Chemical & Petrochemical
Gas Industry
Power Generation
Mechanical and Plant Engineering
Marine Equipment's
Pulp & Paper
Pharmaceutical Industry

Manufacturing, Testing & Quality Assurance

Advanced Welded Tube Manufacturing

309 Stainless Steel Welded Tubes are manufactured using high-chromium, high-nickel stainless steel coils and advanced forming and welding technologies. Controlled production processes ensure uniform wall thickness, excellent weld integrity, precise dimensional accuracy, and strong mechanical stability for high-temperature service.

Inspection & Testing Procedures

Each 309 welded tube undergoes comprehensive quality inspections including weld seam examination, Eddy Current Testing (ECT), dimensional verification, Positive Material Identification (PMI), and detailed visual inspection to ensure resistance to oxidation, scaling, and long-term performance under extreme heat conditions.

Standards & Certifications

Our 309 stainless steel welded tubes are manufactured in compliance with ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and applicable ASTM, EN, and international standards, ensuring consistent quality, safety, and reliability for furnaces, heat exchangers, power plants, and other high-temperature industrial applications.

Typical Applications

Food & Beverage Processing Equipment
Pharmaceutical & Biotechnology Plants
Chemical Processing & Storage Systems
Water Treatment & Distribution Lines
HVAC & Chilled Water Systems
Architectural & Decorative Structures
Automotive & Transport Fabrications
Dairy, Brewery & Sanitary Piping
General Industrial Fabrication

Looking for 309 Stainless Steel Welded Tubes?

Connect with Seminox Pipes & Tubes for expert technical support, competitive pricing, and reliable global supply of premium 309 stainless steel welded tubes engineered for high-temperature service, excellent oxidation resistance, and heat-intensive industrial applications.

Get in Touch

Phone Number

022 6659 5296
+91 9987403801
+918433943801

Email

domestic@seminoxpipes.com
export@seminoxpipes.com

Address

1219 / 1220, 12th Floor, Prasad Chambers, Girgaon, Mumbai- 400004

Business Hours

Monday — Friday 9am – 5pm
Saturday — 10am – 3pm
Sunday — Closed

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