1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

EN 10088 Grade • AISI 304 Equivalent • Excellent Corrosion Resistance & Formability

Manufacturers and suppliers of 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, engineered for reliable performance in general-purpose, mildly corrosive, and precision-controlled service environments across chemical processing, HVAC, water treatment, and industrial automation systems.

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

1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Our 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, also known as AISI 304, are engineered for dependable performance in general-purpose and mildly corrosive environments where excellent corrosion resistance, mechanical strength, and long-term reliability are essential. The austenitic structure of EN 1.4301 provides outstanding resistance to oxidation and atmospheric corrosion, along with superior formability and weldability for versatile system design and fabrication.

The seamless, precision-manufactured construction ensures uniform wall thickness and smooth internal surfaces, minimizing pressure loss and ensuring clean, consistent fluid flow in sensitive hydraulic and instrumentation systems. These tubes maintain dimensional stability under pressure and thermal variation, making them ideal for process control, measurement, and fluid handling applications.

Widely used in food and beverage processing, pharmaceutical plants, chemical processing, water treatment systems, HVAC installations, and industrial automation, our 1.4301 stainless steel seamless tubes are manufactured and tested to international standards to deliver a durable, cost-effective, and high-performance solution for precision and corrosion-resistant service environments.

1.4301 Stainless Steel Seamless Hydraulic and Instrumentation Tubes

Comprehensive Global Reach

Our 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, also known as AISI 304, are trusted across major industrial cities in India, including Mumbai, Chennai, Pune, and Ahmedabad, supporting food processing, pharmaceutical manufacturing, chemical plants, water treatment facilities, and general industrial projects that demand reliable, corrosion-resistant, and precision-engineered 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 1.4301 stainless steel seamless tubes are widely used in process control systems, water treatment plants, HVAC installations, and EPC projects requiring consistent quality, clean internal surfaces, and dependable corrosion resistance.

Europe, Africa, Americas & Asia-Pacific

In Europe, our tubes serve Italy, Germany, Spain, France, the United Kingdom, Turkey, Greece, Austria, and Eastern European markets, where hygienic design, dimensional precision, and long service life are essential. Across Africa, the Americas, and the Asia-Pacific region—including the United States, Canada, Brazil, Mexico, South Africa, Nigeria, Singapore, Malaysia, Thailand, and Australia—our 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes support chemical processing, food and beverage production, water infrastructure, industrial automation, and light manufacturing industries.

Commitment to Quality

Wherever you operate—Doha, Dubai, London, Houston, Singapore, or Sydney—Seminox Pipes & Tubes delivers premium-quality 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, manufactured and certified to international standards to ensure precision, full traceability, and long-term performance in critical fluid control and instrumentation applications worldwide.

Key Features of 1.4301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Precision Seamless Manufacturing

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

Excellent General Corrosion Resistance

The austenitic chromium-nickel composition of 1.4301 (AISI 304) provides strong resistance to oxidation, moisture, and a wide range of mild chemicals, making these tubes suitable for clean, hygienic, and general industrial environments.

High Cleanliness & Hygienic Properties

Smooth internal and external surfaces reduce contamination risk and support hygienic system design, making these tubes ideal for food processing, pharmaceutical, and chemical handling applications.

Smooth Bore for Accurate Flow Control

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

Good Temperature & Oxidation Performance

Maintains mechanical integrity and oxidation resistance under moderately elevated temperatures and thermal cycling, supporting reliable service in industrial and process control applications.

Long Service Life & Easy Fabrication

Offers excellent weldability, formability, and durability, reducing installation complexity, maintenance requirements, and overall lifecycle costs in a wide range of industrial and commercial systems.

Key Features of 14301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Precision Seamless Manufacturing

Manufactured using advanced cold drawing and seamless forming processes to ensure uniform wall thickness, tight dimensional tolerances, and ultra-smooth internal surfaces for consistent fluid flow, pressure stability, and accurate instrumentation performance.

High-Carbon Grade for Enhanced High-Temperature Strength

The elevated carbon content of 317H stainless steel significantly improves creep resistance and tensile strength at elevated temperatures, making these tubes ideal for continuous operation in heat-intensive and high-pressure service environments.

Superior Corrosion & Chloride Resistance

Increased molybdenum and chromium levels provide exceptional protection against pitting, crevice corrosion, and chloride-induced attack, ensuring long-term performance in aggressive chemical, marine, and petrochemical applications.

Smooth Bore for Accurate Flow Control

Precision-finished internal surfaces minimize friction losses, reduce turbulence, and enhance flow stability for sensitive hydraulic and instrumentation systems requiring precise pressure and flow regulation.

Excellent High-Temperature & Oxidation Resistance

Maintains mechanical integrity, surface stability, and corrosion resistance under extreme temperatures, thermal cycling, and oxidizing industrial service conditions.

Long Service Life & Reduced Maintenance Costs

Engineered for extended operational life, reduced downtime, and lower total lifecycle costs in refineries, power generation facilities, chemical processing plants, and other high-temperature industrial systems.

Product Specification –14301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

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 (High Carbon)
AISI 317H
UNS S31709
EN 1.4438 (Closest Equivalent)
Manufacturing Process
Seamless (Cold Drawn / Cold Rolled) • Solution Annealed • Pickled / Bright Annealed
Standards & Specifications
ASTM A213 / A213M – Seamless Stainless Steel Tubes (Instrumentation & Heat Transfer)
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: 515–690 MPa
Elongation: ≥ 40%
Enhanced Creep Strength at Elevated Temperatures
Applications
High-Temperature Hydraulic & Pneumatic Systems
Instrumentation & Process Control Lines
Petrochemical & Refinery Piping Systems
Chemical Processing & Corrosive Fluid Handling Units
Power Generation & Thermal Energy Systems
Heat Exchangers, Furnaces & Industrial Heating Equipment
Offshore, Marine & High-Pressure Fluid Transfer Systems

Manufacturing, Testing & Quality Assurance – 14301 Stainless Steel Tubes

Advanced Manufacturing

Our 317H Stainless Steel Seamless Hydraulic & Instrumentation Tubes are produced 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 enhanced high-temperature strength, superior corrosion resistance, and tight dimensional tolerances for high-pressure, high-heat hydraulic and instrumentation service environments.

Inspection & Testing

Each tube undergoes a rigorous quality control program including Eddy Current Testing (ECT), hydrostatic or pneumatic pressure testing, Positive Material Identification (PMI), chemical composition analysis, mechanical and high-temperature performance testing, dimensional verification, and 100% visual inspection. These procedures ensure full compliance with ASTM A213, ASTM A269, ASME SA213, and ASME SA269 standards.

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. All tubes are supplied with EN 10204 3.1 / 3.2 Mill Test Certificates (MTC), ensuring full traceability, regulatory compliance, and acceptance for EPC, petrochemical, power generation, refinery, chemical processing, and offshore projects worldwide.

Typical Applications of 14301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

High-Temperature Hydraulic & Pneumatic Control Systems
Precision Instrumentation & Process Control Lines
Petrochemical, Refinery & Hydrocarbon Processing Systems
Chemical Processing & Corrosive Fluid Handling Units
Power Generation, Boilers & High-Heat Energy Systems
Industrial Heating, Furnaces & Thermal Processing Equipment
High-Pressure & High-Temperature Fluid Transfer Lines
Heat Exchangers, Condensers & Thermal Control Systems
Corrosive, High-Temperature & Critical Service Environments

Request a Quote for 317H Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Work with Seminox Pipes & Tubes for globally certified, 14301 Stainless Steel Seamless Hydraulic & Instrumentation Tubes manufactured to ASTM, ASME, and EN standards and supplied with full EN 10204 3.1 / 3.2 Mill Test Certification. Trusted by EPC contractors, OEMs, and industrial operators worldwide for high-temperature, high-pressure, and corrosion-critical applications that demand consistent quality, full traceability, and on-time project delivery.

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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