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Leading Tube Manufacturer in China, Since 1996

Tailor-made for high-quality precision tubes in various OD, ID, wall thickness, and length. We meet customer needs across aerospace, medical, semiconductor, marine, food processing, and chemical industries.

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Premium Tube Materials

Pure Nickel

Including Nickel 200, Nickel 201 – ideal for high corrosion resistance environments.

Nickel Alloy

Inconel, Incoloy, Monel, Hastelloy – excelling in extreme temperature and pressure.

Superalloy

Nimonic 80A, Nimonic 75 – maintain strength at elevated temperatures.

Austenitic Stainless

316L, 316LVM, 310MoLN – excellent corrosion resistance in acidic environments.

Duplex Stainless

2205, 2507, F55 – dual-phase microstructure for high strength and corrosion resistance.

Ronsco Tubes Manufacturing Facility

About Allianz Steel Group

Ronsco has been a trusted name in precision tube manufacturing since 1996. We adhere to a customer-centered business philosophy, striving to meet and exceed client expectations through innovation, quality, and reliability.

As part of the Allianz Steel Group, we leverage decades of metallurgical expertise and advanced production capabilities to deliver high-performance tubes for the most demanding industrial applications.

  • ISO 9001, AD2000, PED Certified
  • 28+ Years of Industry Experience
  • Custom Solutions for Every Project
  • Global Supply Network

Surface Finishing Options

Bright Annealed

Smooth, reflective finish ideal for high-purity applications in medical and semiconductor industries.

Electropolished

Superior surface smoothness and corrosion resistance; removes micro-imperfections.

Mechanical Polishing

Achieves precise surface roughness; suitable for food processing and marine applications.

Acid Pickling

Removes oxide scale and improves corrosion resistance; commonly used in chemical processing.

Our Products

Pure Nickel Tubes

Pure Nickel Tubes

Nickel 200, Nickel 201 – exceptional corrosion resistance for aggressive environments.

  • OD: 0.5mm – 100mm
  • Wall: 0.1mm – 10mm
  • Standards: ASTM B161, ASME SB161
Nickel Alloy Tubes

Nickel Alloy Tubes

Inconel, Incoloy, Monel, Hastelloy – engineered for extreme thermal and chemical stress.

  • Alloys: 600, 625, 800, 825, C276
  • Forms: Seamless & Welded
  • Applications: Aerospace, Chemical
Superalloy Tubes

Superalloy Tubes

Nimonic 80A, Nimonic 75 – retain strength at temperatures exceeding 1000°C.

  • Heat Resistant: Up to 1150°C
  • Uses: Jet engines, turbines
  • Certified: NACE MR0175
Austenitic Stainless Tubes

Austenitic Stainless Tubes

316L, 316LVM, 310MoLN – superior corrosion resistance in acidic and saline environments.

  • Grades: 304, 304L, 316, 316L
  • Finish: BA, EP, Pickled
  • Standards: ASTM A213, A269
Duplex Stainless Tubes

Duplex Stainless Tubes

2205, 2507, F55 – dual-phase structure offers high strength and chloride resistance.

  • Yield Strength: 2x Austenitic
  • Applications: Offshore, desalination
  • Standards: ASTM A789, A790
Precision Capillary Tubes

Precision Capillary Tubes

Ultra-thin wall seamless tubes with tight tolerances for medical and instrumentation use.

  • OD: 0.3mm – 6.0mm
  • Wall: As thin as 0.05mm
  • Tolerance: ±0.01mm
Ultra Thin Wall Seamless Tubes

Ultra Thin Wall Seamless Tubes

Engineered for weight-sensitive and high-pressure applications in aerospace and defense.

  • Wall Thickness: 0.1mm – 0.5mm
  • Processes: Cold Drawn, Pilger
  • Testing: Eddy Current, Hydro
Custom Fabricated Tubes

Custom Fabricated Tubes

Tailored dimensions, finishes, and packaging to meet unique project requirements.

  • Custom OD/ID/Wall: Any specification
  • Lengths: Up to 12 meters
  • Support: Engineering & QA teams
View Full Product Catalog

Industry Applications

Medical Industry

Precision capillary and ultra-thin wall tubes used in catheters, surgical instruments, and diagnostic equipment requiring biocompatibility and sterility.

Aerospace Industry

High-strength superalloy and stainless tubes for jet engines, fuel systems, and hydraulic lines operating under extreme conditions.

Marine Engineering

Duplex and super duplex stainless tubes resistant to seawater corrosion, used in offshore platforms and shipbuilding.

Food Processing

Electropolished and mechanically polished tubes ensuring hygiene, easy cleaning, and compliance with food safety standards.

Semiconductor Industry

Ultra-clean, high-purity tubes for gas delivery systems and vacuum chambers requiring particle-free surfaces.

Chemical Processing

Corrosion-resistant nickel alloy and superalloy tubes for reactors, heat exchangers, and piping in aggressive chemical environments.

Rigorous Quality Control

Ronsco is certified under ISO 9001, AD2000, and PED standards. Our comprehensive quality management system ensures every tube meets or exceeds international specifications.

From raw material inspection to final packaging, each stage is monitored using advanced inspection equipment including eddy current testing, hydrostatic testing, and spectrometry.

Certifications

  • ISO 9001:2015
  • AD2000 Merkblatt
  • PED 2014/68/EU
  • NACE MR0175/ISO 15156

Testing Capabilities

  • UT, Eddy Current
  • Hydrostatic Testing
  • Dimensional Checks
  • Chemical Analysis
Quality Inspection at Ronsco

Ready to Discuss Your Project?

Contact us today for custom solutions, technical support, or a quote on high-precision tubing.

manager@ronsteel.com

+8617773160488

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