Manufacturers and suppliers of ASTM A269 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, engineered for general service, moderate pressure, and corrosive environments in petrochemical plants, refineries, power generation systems, and industrial processing facilities.
Our ASTM A269 Stainless Steel Seamless Hydraulic & Instrumentation Tubes
are engineered for precision fluid control, general service, and moderately corrosive
environments where dimensional accuracy, surface quality, and long-term reliability
are essential. Manufactured from high-quality austenitic stainless steel, these tubes
provide excellent resistance to corrosion, oxidation, and mechanical wear in demanding
industrial and process control applications.
The seamless, cold-drawn construction ensures uniform wall thickness and smooth internal
surfaces, minimizing pressure loss and enabling stable, efficient flow in critical
hydraulic, pneumatic, and sensitive instrumentation systems. This precision finish
supports accurate measurement, consistent performance, and enhanced system safety
under continuous operating conditions.
Commonly used in refineries, chemical processing units, power generation plants,
pharmaceutical facilities, and heavy manufacturing environments, our ASTM A269
stainless steel seamless tubes are produced and tested in accordance with
international standards to deliver a dependable, cost-effective, and high-performance
solution for precision tubing and fluid handling systems.
Our ASTM A269 Stainless Steel Seamless Hydraulic & Instrumentation Tubes are trusted across major industrial cities in India, including Mumbai, Chennai, Pune, and Ahmedabad, supporting refineries, pharmaceutical plants, chemical processing units, power generation facilities, and heavy manufacturing projects that demand precision tubing, corrosion resistance, and long-term operational reliability.
Throughout the Middle East, we supply the UAE (Dubai, Abu Dhabi, Sharjah, Ajman, and Ras Al Khaimah), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Iraq, Jordan, and Lebanon. Our ASTM A269 seamless tubes are widely used in oil & gas facilities, water treatment plants, instrumentation systems, and EPC projects requiring dimensional accuracy, clean internal surfaces, and dependable performance under continuous service conditions.
In Europe, our tubes serve Italy, Germany, Spain, France, the United Kingdom, Turkey, Greece, Austria, and Eastern European markets, where precision engineering and material traceability are essential. Across Africa, the Americas, and the Asia-Pacific region—including the United States, Canada, Brazil, Mexico, South Africa, Nigeria, Singapore, Malaysia, Thailand, Vietnam, and Australia—our ASTM A269 Stainless Steel Seamless Hydraulic & Instrumentation Tubes support chemical processing plants, power stations, pharmaceutical facilities, offshore projects, and advanced manufacturing operations.
Wherever you operate—Doha, Dubai, London, Houston, Singapore, or Sydney—Seminox Pipes & Tubes delivers premium-quality ASTM A269 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, manufactured and certified to international standards to ensure dimensional accuracy, full material traceability, and long-term reliability in critical fluid control, instrumentation, and precision tubing applications worldwide.
Manufactured using advanced cold drawing and seamless forming techniques to achieve consistent wall thickness, tight dimensional tolerances, and clean internal surfaces for reliable fluid transfer and accurate instrumentation performance in critical systems.
ASTM A269 tubing is produced in austenitic stainless steel grades that provide strong resistance to general corrosion, oxidation, and chemical attack, making these tubes suitable for chemical processing, pharmaceutical, water treatment, and industrial service environments.
Designed to maintain strength, dimensional stability, and pressure integrity under continuous operating conditions in hydraulic and instrumentation systems requiring long-term reliability and safety.
Precision-finished internal surfaces reduce friction and pressure loss, ensuring consistent flow and accurate signal transmission in sensitive process control and measurement applications.
Easily formed and welded to support efficient fabrication, installation, and system integration without compromising corrosion resistance or dimensional accuracy.
Engineered for extended durability and reduced maintenance in refineries, chemical plants, pharmaceutical facilities, power generation systems, and advanced manufacturing operations worldwide.
UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315) are manufactured using precision cold drawing and cold rolling processes, followed by controlled solution annealing and pickling or bright annealing. The high-chromium austenitic microstructure delivers excellent resistance to oxidation, scaling, and general corrosion, along with superior surface finish and tight dimensional tolerances for dependable performance in high-temperature and high-pressure hydraulic and instrumentation service environments.
Each tube is subjected to a comprehensive quality assurance program, including Eddy Current Testing (ECT) or Ultrasonic Testing (UT), Hydrostatic or Pneumatic Pressure Testing (where specified), Positive Material Identification (PMI), chemical composition verification, mechanical property testing, dimensional inspection, and 100% visual examination. These controls ensure full compliance with ASTM A213, ASTM A269, and ASME SA213 / SA269 requirements for safe, leak-free performance in critical fluid control and instrumentation systems.
Manufactured in accordance with ASTM A213, ASTM A269, ASME SA213, ASME SA269, EN 10216-5, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and PED 2014/68/EU directives. Tubes are supplied with EN 10204 3.1 / 3.2 Mill Test Certificates (MTC), ensuring full material traceability, regulatory compliance, and acceptance for EPC, power generation, petrochemical, offshore, marine, and heavy industrial projects worldwide.
Partner with Seminox Pipes & Tubes for premium-quality, project-ready UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315), manufactured to international ASTM, ASME, and EN standards and supplied with EN 10204 3.1 / 3.2 Mill Test Certificates. Trusted globally for refineries, power generation, chemical processing, industrial heating, offshore, and marine applications requiring superior oxidation resistance, high-temperature performance, and long-term reliability in critical hydraulic and instrumentation systems.
022 6659 5296 +91 9987403801 +918433943801
domestic@seminoxpipes.com export@seminoxpipes.com
1219 / 1220, 12th Floor, Prasad Chambers, Girgaon, Mumbai- 400004
Monday — Friday 9am – 5pm
Saturday — 10am – 3pm
Sunday — Closed
Powered by Seminox Pipes & Tubes Pvt Ltd | Designed and Developed by Skytech SEO Solutions