1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Low-Carbon Grade • Excellent Weldability • Superior Corrosion Resistance

With excellent formability, high surface quality, and reliable resistance to oxidation and chemical attack, these tubes deliver consistent flow control, system safety, and extended service life in critical hydraulic and instrumentation applications.

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

1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 304L)

Our 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes, also known as AISI 304L, are engineered for precision fluid and gas control systems where corrosion resistance, cleanliness, and long-term reliability are essential. The low-carbon composition of EN 1.4306 (X2CrNi19-11) significantly reduces the risk of intergranular corrosion, particularly in welded and heat-affected zones, ensuring superior structural integrity in critical instrumentation and hydraulic applications.

The seamless, cold-finished construction provides uniform wall thickness and exceptionally smooth internal surfaces, minimizing pressure loss and promoting consistent, contamination-free flow. These properties make the tubes ideal for high-purity and high-precision environments where system accuracy, safety, and performance must be maintained under continuous operation.

Widely used in chemical processing, pharmaceutical and food & beverage industries, oil & gas systems, and industrial automation, our 1.4306 stainless steel seamless tubes offer excellent formability, weldability, and resistance to oxidation and mild chemical attack. Manufactured and tested to international standards, they provide a durable, hygienic, and cost-effective solution for corrosion-sensitive and precision-driven service environments.

1.4306 Stainless Steel Seamless Hydraulic and Instrumentation Tubes

Comprehensive Global Reach

Our 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 304L) are widely trusted across major industrial cities in India, including Mumbai, Chennai, Pune, and Ahmedabad. These tubes support chemical processing plants, pharmaceutical facilities, food & beverage production lines, and precision manufacturing systems that require corrosion-resistant, hygienic, and reliable tubing solutions.

Throughout the Middle East, we supply the UAE (Dubai, Abu Dhabi, Sharjah, Ajman, Al Ain, and Ras Al Khaimah), Saudi Arabia, Qatar (Doha), Kuwait, Oman, Bahrain, Iraq, Jordan, and Lebanon. Our 1.4306 stainless steel seamless tubes are extensively used in oil & gas utilities, water treatment facilities, and large-scale EPC and infrastructure projects where clean flow, weld integrity, and long-term corrosion resistance are critical.

Europe, Africa, Americas & Asia-Pacific

In Europe, our tubes serve Italy, Germany, Spain, France, the United Kingdom, Turkey, Greece, Austria, and Eastern European markets, supporting industries that demand precision engineering, hygienic material performance, and dependable corrosion resistance. 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 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes are trusted in chemical processing, food and pharmaceutical manufacturing, power generation, offshore operations, and industrial automation systems.

Commitment to Quality

Wherever you operate—Doha, Dubai, London, Houston, Singapore, or Sydney—Seminox Pipes & Tubes delivers premium-quality 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes (AISI 304L), manufactured and certified to international standards to ensure full traceability, consistent surface quality, and long-term performance in critical fluid control and precision instrumentation applications worldwide.

Key Features of 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Precision Seamless Manufacturing

Produced using advanced cold drawing and seamless forming processes to achieve uniform wall thickness, tight dimensional tolerances, and smooth internal surfaces for reliable fluid transfer and precise instrumentation performance.

Low-Carbon Grade for Weld Integrity

The low-carbon chemistry of 1.4306 / AISI 304L minimizes the risk of intergranular corrosion in welded and heat-affected zones, ensuring strong, durable joints and long-term structural stability in hydraulic and instrumentation systems.

Excellent General Corrosion Resistance

Provides reliable resistance to oxidation, moisture, and mild chemical attack, making these tubes suitable for chemical processing, food & beverage, pharmaceutical, and industrial service environments.

Smooth Bore for Accurate Flow Control

Precision-finished internal surfaces reduce friction, minimize pressure drop, and promote stable, contamination-free flow in sensitive measurement and control systems.

Formability & Fabrication Flexibility

Excellent ductility and workability allow for easy bending, flaring, and welding, enabling efficient fabrication and installation across complex hydraulic and instrumentation layouts.

Long Service Life & Low Maintenance

Engineered for extended durability, reduced downtime, and lower lifecycle costs in precision manufacturing, process industries, and clean-service applications requiring dependable, corrosion-resistant tubing.

Product Specification – 1.4306 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 (Low Carbon)
EN 1.4306 (X2CrNi19-11)
AISI 304L
UNS S30403
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)
DIN EN 10088-2
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: ≥ 170 MPa
Tensile Strength: 485–620 MPa
Elongation: ≥ 40%
Excellent Toughness & Ductility at Ambient and Low Temperatures
Applications
Hydraulic and pneumatic tubing systems
Instrumentation and control lines
Chemical processing and pharmaceutical plants
Food & beverage processing systems
Oil & gas utilities and industrial automation
Heat exchangers and general engineering applications
Certifications
ISO 9001:2015 • ISO 14001:2015 • ISO 45001:2018
PED 2014/68/EU
EN 10204 3.1 / 3.2 Test Certification

Manufacturing, Testing & Quality Assurance – 1.4306 Stainless Steel Tubes

Advanced Manufacturing

1.4306 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 produces a fully austenitic, homogeneous microstructure with excellent surface quality, reliable corrosion resistance, and tight dimensional tolerances for clean-service, hygienic, and precision fluid control applications.

Inspection & Testing

Each tube undergoes comprehensive quality control including Eddy Current Testing (ECT), Hydrostatic or Pneumatic Pressure Testing, Positive Material Identification (PMI), chemical composition verification, mechanical testing, dimensional inspection, and 100% visual examination. These procedures ensure full compliance with ASTM A213 / A269 and ASME SA213 / SA269 standards for safe and reliable performance in corrosion-sensitive and precision instrumentation environments.

Certifications & Compliance

Manufactured in accordance with ASTM A213, ASTM A269, ASME SA213, ASME SA269, EN 10216-5, DIN EN 10088-2, 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, pharmaceutical, food processing, chemical, oil & gas utility, and industrial automation projects worldwide.

Typical Applications of 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes

Hydraulic & Pneumatic Control Systems
Instrumentation & Process Control Lines
Chemical Processing & Corrosive Fluid Handling
Pharmaceutical & Food & Beverage Processing Equipment
Oil & Gas Utility & Sampling Systems
Water Treatment & Desalination Plan

Need 1.4306 Stainless Steel Seamless Hydraulic & Instrumentation Tubes for Your Project?

Partner with Seminox Pipes & Tubes for certified, project-ready 1.4306 / AISI 304L 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 chemical processing, pharmaceutical, food & beverage, oil & gas utilities, and precision manufacturing applications requiring excellent corrosion resistance, clean flow characteristics, and long-term reliability in corrosion-sensitive and hygienic 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

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Saturday — 10am – 3pm
Sunday — Closed

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