Manufacturers and suppliers of UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315), engineered for high-temperature and moderately corrosive service environments in petrochemical plants, refineries, power generation systems, and industrial processing facilities.
Our UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315)
are engineered for high-temperature, high-pressure, and moderately corrosive environments
where superior mechanical strength, oxidation resistance, and long-term durability are
essential. The high-chromium austenitic composition of Grade UNS S31500
provides excellent resistance to scaling, thermal fatigue, and general corrosion,
making these tubes well-suited for power generation, petrochemical, and thermal
processing applications.
The seamless, precision-manufactured construction ensures uniform wall thickness and
smooth internal surfaces, minimizing pressure loss and maintaining efficient, stable
flow in critical hydraulic, pneumatic, and sensitive instrumentation systems. These
tubes perform reliably under continuous high pressure, elevated temperatures, and
vibration, supporting safety-critical fluid control and precision measurement operations.
Commonly used in refineries, power plants, chemical processing units, industrial heating
systems, and heavy manufacturing facilities, our UNS S31500 stainless steel seamless
tubes are produced and tested in accordance with international standards to deliver
a durable, high-performance, and cost-effective solution for demanding service
environments.
Our UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes are trusted across major industrial cities in India, including Mumbai, Chennai, Pune, and Ahmedabad, supporting refineries, power generation plants, industrial heating systems, and heavy manufacturing projects that require reliable, high-temperature and oxidation-resistant tubing solutions.
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 UNS S31500 seamless tubes are widely used in oil & gas facilities, thermal processing units, water treatment plants, and EPC projects operating under elevated temperatures, pressure, and demanding 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 thermal stability are critical. 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 UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes support power stations, chemical processing plants, offshore facilities, heavy manufacturing, and high-temperature industrial systems.
Wherever you operate—Doha, Dubai, London, Houston, Singapore, or Sydney—Seminox Pipes & Tubes delivers premium-quality UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, manufactured and certified to international standards to ensure precision, full material traceability, and long-term performance in critical, high-temperature, and pressure-sensitive fluid control and instrumentation applications worldwide.
Produced using advanced cold drawing and seamless forming techniques to achieve uniform wall thickness, tight dimensional tolerances, and smooth internal surfaces for reliable fluid flow and accurate instrumentation performance in critical systems.
The elevated chromium content in UNS S31500 (AISI 315) provides improved resistance to oxidation, scaling, and general corrosion, making these tubes suitable for high-temperature and thermally demanding service environments.
Maintains mechanical strength, dimensional stability, and pressure integrity under continuous high-pressure and high-temperature operating conditions in hydraulic and instrumentation applications.
Precision-finished internal surfaces reduce friction and pressure loss, ensuring consistent, stable flow and accurate measurement in sensitive instrumentation and process control systems.
Designed for ease of welding and forming, allowing efficient fabrication, installation, and maintenance without compromising corrosion resistance or high-temperature performance.
Engineered for extended durability and reduced maintenance in refineries, power generation plants, industrial heating systems, chemical processing facilities, and heavy manufacturing operations.
UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315) are produced using precision cold drawing and cold rolling processes, followed by controlled solution annealing and pickling or bright annealing. The high-chromium austenitic structure provides excellent resistance to oxidation, scaling, and general corrosion, along with superior surface finish and tight dimensional tolerances for reliable performance in high-temperature, high-pressure hydraulic and instrumentation applications.
Each tube undergoes comprehensive quality control, including Eddy Current Testing (ECT), Hydrostatic or Pneumatic Pressure Testing, Positive Material Identification (PMI), chemical composition verification, mechanical property testing, dimensional inspection, and 100% visual examination. These procedures ensure full compliance with ASTM A213, ASTM A269, and ASME SA213 / SA269 standards for safe and reliable service in refineries, power generation plants, chemical processing units, and thermal processing environments.
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 traceability, regulatory compliance, and acceptance for EPC, power generation, petrochemical, offshore, marine, and heavy industrial projects worldwide.
Partner with Seminox Pipes & Tubes for certified, project-ready UNS S31500 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 315) manufactured to international standards and supplied with EN 10204 3.1 / 3.2 Mill Test Certificates. Trusted worldwide for refineries, power generation, chemical processing, industrial heating systems, offshore and marine applications requiring strong oxidation resistance, high-temperature stability, and long-term reliability in critical hydraulic and instrumentation service environments.
022 6659 5296 +91 9987403801 +918433943801
domestic@seminoxpipes.com export@seminoxpipes.com
1219 / 1220, 12th Floor, Prasad Chambers, Girgaon, Mumbai- 400004
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