317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

High Molybdenum Content • Superior Pitting Resistance • Chloride & Acid Corrosion Protection

Manufacturers and suppliers of 317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, engineered for highly corrosive, acidic, and chloride-rich service environments in chemical processing plants, offshore installations, marine systems, and refinery operations.

ISO 9001:2015 • ISO 14001:2015 • ISO 45001:2018 • PED 2014/68/EU • EN 10204 3.1 / 3.2 Certified

317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Our 317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes are engineered for highly corrosive and chemically aggressive service environments where enhanced resistance to pitting, crevice corrosion, and acid attack is critical. The higher molybdenum and chromium content of Grade 317 provides superior protection in chloride-rich, marine, and chemical processing applications.

Precision seamless manufacturing ensures uniform wall thickness and a smooth, contamination-free internal surface, reducing pressure losses and enhancing flow accuracy in sensitive hydraulic and instrumentation systems. These tubes maintain mechanical strength and dimensional stability under high internal pressures and thermal cycling, supporting safe and reliable operation in demanding industrial conditions.

Widely used in chemical and petrochemical plants, refineries, offshore platforms, marine systems, fertilizer units, pharmaceutical facilities, and high-purity process lines, our 317 stainless steel seamless tubes are produced and tested to international standards to deliver long service life, low maintenance, and dependable performance in critical fluid control and measurement networks.

Comprehensive Global Reach

Our 310L Stainless Steel Seamless Hydraulic & Instrumentation Tubes are trusted across major industrial cities in India and throughout the Middle East, including the UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain. These regions rely on our low-carbon, high-temperature tubing solutions for petrochemical plants, refineries, power generation facilities, and large-scale infrastructure and EPC projects operating under extreme thermal and pressure conditions.

In Europe, we supply Italy, Germany, Spain, the United Kingdom, France, Turkey, and Eastern European markets, where our 310L stainless steel seamless tubes are valued for their superior resistance to scaling, oxidation, and thermal fatigue, as well as their excellent weldability and long-term performance in demanding hydraulic, industrial heating, and precision instrumentation service environments.

Africa, Americas & Asia-Pacific

Across Africa, the Americas, and the Asia-Pacific region, our 310L Stainless Steel Seamless Hydraulic & Instrumentation Tubes support thermal processing plants, power stations, chemical processing units, offshore platforms, and heavy manufacturing industries—delivering dependable performance in high-pressure, heat-intensive, and corrosive operating conditions.

Commitment to Quality

Wherever you operate—Doha, Dubai, London, Houston, or Singapore—Seminox Pipes & Tubes delivers premium-quality 310L Stainless Steel Seamless Hydraulic & Instrumentation Tubes, manufactured and certified to international standards for precision, traceability, and long-term performance in critical fluid control and instrumentation applications worldwide.

Key Features of 317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Precision Seamless Manufacturing

Manufactured using advanced cold drawing and seamless forming technology to ensure uniform wall thickness, tight dimensional tolerances, and smooth internal surfaces for reliable fluid flow and accurate instrumentation performance.

Low-Carbon Grade for Superior Weldability

The low carbon composition of 310L stainless steel minimizes the risk of intergranular corrosion after welding, making these tubes ideal for fabricated piping systems and complex industrial installations.

Exceptional High-Temperature & Oxidation Resistance

High chromium and nickel content provides outstanding resistance to oxidation, scaling, and thermal degradation, ensuring dependable performance in continuous service at elevated and extreme operating temperatures.

Smooth Bore for Accurate Flow Control

Precision-finished internal surfaces reduce friction, minimize pressure losses, and enhance flow stability for sensitive hydraulic and process control systems.

High Strength & Thermal Stability

Maintains mechanical integrity and dimensional stability under high pressure, severe thermal cycling, and aggressive oxidizing service conditions.

Long Service Life & Reduced Maintenance

Engineered for extended service life, reduced downtime, and lower lifecycle costs in petrochemical plants, refineries, power generation facilities, and high-temperature industrial processing environments.

Product Specification

Outside Diameter
6.00 mm to 114.30 mm (1/4” to 4.5”)
Wall Thickness
0.71 mm to 12.70 mm (0.028” to 0.500”)
Grade / Material
Austenitic Stainless Steel
AISI 310L / 310S
UNS S31003 (310L) / UNS S31008 (310S)
EN 1.4845 (X8CrNi25-21 – 310S Equivalent)
Manufacturing Process
Seamless (Cold Drawn / Cold Rolled) • Solution Annealed • Pickled / Bright Annealed
Standards & Specifications
ASTM A213 / A213M – Seamless Stainless Steel Tubes (Heat Transfer & Instrumentation)
ASTM A269 – General Service Stainless Steel Tubing
ASTM A511 – Mechanical Tubing
ASME SA213 / SA269
EN 10216-5 (Seamless Precision Tubes)
Customer Drawings & EPC / Project Specifications
Length
Standard: 6 meters • Random Lengths • Up to 18 meters
Custom cut lengths as per Project / Instrumentation Requirements
Surface Finish
Annealed & Pickled (AP), Bright Annealed (BA),
Polished (180 / 240 / 320 / 400 / 600 Grit), Electropolished
Mechanical Properties (Typical)
Yield Strength: ≥ 205 MPa
Tensile Strength: 515–750 MPa
Elongation: ≥ 40%
Applications
High-Temperature Hydraulic & Instrumentation Lines,
Petrochemical & Refinery Systems,
Power Generation & Thermal Processing Plants,
Industrial Heating & Furnace Equipment,
Chemical Processing Units,
High-Pressure & High-Heat Fluid Transfer Systems,
Oxidizing & Heat-Intensive Service Environments

Manufacturing, Testing & Quality Assurance

Advanced Manufacturing

310L / 310S Stainless Steel Seamless Hydraulic & Instrumentation Tubes are manufactured using precision cold drawing and cold rolling processes, followed by controlled solution annealing and pickling or bright annealing. This ensures a fully austenitic, homogeneous microstructure with exceptional resistance to oxidation, scaling, and thermal fatigue, along with tight dimensional tolerances and superior surface finish for high-temperature, high-pressure, and heat-intensive hydraulic and instrumentation service applications.

Inspection & Testing

Each tube is subjected to comprehensive quality control including Eddy Current Testing (ECT), Hydrostatic or Pneumatic Pressure Testing, Positive Material Identification (PMI), chemical composition analysis, mechanical property testing, dimensional inspection, and 100% visual examination. These tests verify compliance with ASTM A213 / A269 and ASME SA213 / SA269 standards, ensuring safe and reliable performance in elevated-temperature, oxidizing, and critical process environments.

Certifications & Compliance

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), providing full traceability, regulatory compliance, and acceptance for EPC, petrochemical, refinery, power generation, chemical processing, and high-temperature industrial projects worldwide.

Typical Applications

High-Temperature Hydraulic & Pneumatic Control Systems
Instrumentation & Process Control Lines
Petrochemical & Refinery Piping Systems
Power Generation & Thermal Processing Plants
Industrial Heating & Furnace Systems
Chemical & Process Industry Equipment
High-Pressure & High-Heat Fluid Transfer Systems
Heat Exchangers & Thermal Control Systems
Oxidizing, High-Temperature & Critical Service Environments

Need 317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes for Your Project?

Partner with Seminox Pipes & Tubes for certified, project-ready 317 Stainless Steel Seamless Hydraulic & Instrumentation Tubes manufactured to international standards and supplied with EN 10204 3.1 / 3.2 Mill Test Certificates. Trusted worldwide for petrochemical, refinery, power generation, and high-temperature industrial applications requiring exceptional oxidation resistance, superior weldability, and long-term reliability in heat-intensive and critical service environments.

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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