Incoloy Seamless Tube

Incoloy Seamless Tube – High-Performance Alloy Piping for Extreme Environments

TSM Technology produces Incoloy Seamless Tube seamless tubes of high quality with a manufacturing capacity of 100-200 tonnes per month. The business has ISO 9001, AS9100D, and AS9120 certifications. Because our tubes are continuous and weld-free, there is no risk of weld seam failure, a significant advantage in delicate applications. The nickel-iron-chromium superalloys used to make these tubes are very resistant to oxidation, carburization, and stress corrosion cracking. We provide affordable alternatives that bridge the gap between regular stainless steels and pricey nickel-based alloys, with over 14 years of expertise and shipping to more than 70 countries. You get precise measurements, reliable quality, and comprehensive traceability documentation with every transaction.

What are Incoloy Seamless Tubes?

The product is a high-performance pipe solution mostly composed of chromium, iron, and nickel. It is made by rotary piercing or extrusion and has a continuous, weld-free structure.

The heat-affected zone (HAZ) in welded tubes is eliminated by the design. In critical circumstances, you stop early failure and localised corrosion.

These tubes do not transform into austenitic structures up to 1100°F (593°C), in contrast to traditional materials. They can withstand corrosion caused by chloride stress and carburising environments.

Improve the endurance of your operations without the price tag of pure nickel alloys. It’s the sensible pick when performance and price matter.

Specification

Physical and Chemical Properties

Product Standards

We manufacture to globally recognised standards:

ASTM B163 — Seamless condenser and heat exchanger tubes of nickel and nickel alloys

ASTM B407 — Seamless pipe and tube, nickel-iron-chromium alloy

ASTM B829 - Seamless alloy tubes for high criticality applications

ASME SB407 - Service of Pressure Piping

JIS G3463 - Japanese Standard for Heat Exchanger Tubes

DIN 17458 European standard for stainless and heat resistant steel tubes

EN 10204 3.1 Mill test certificates (MTC) with detailed chemical analysis and mechanical testing data are available for all items.

What are the Features of Incoloy Seamless Tube?

Weld-Free Construction

You remove the weakest point in typical pipe, the weld seam. This avoids stress concentration and local corrosion.

High-temperature strength, higher

Remains in shape and form at temperatures above 1100°F. Your systems are safe under heat cycling circumstances.

Excellent Resistance to Corrosion

Resistant to sulfuric acid, phosphoric acid, and chloride pitting. Suitable for chemical processes and marine splash zones.

Top Pressure Rating

Withstands tremendous interior pressure with no creep deformation Used in petrochemical crackers and nuclear steam generators.

Cost-Effective Performance

Delivers superalloy capabilities at a fraction of pure nickel alloy costs. You optimize budgets without compromising safety.

Dimensional Precision

Our 100+ precision machines ensure tight tolerances and uniform wall thickness. You get consistent performance across entire tube lengths.

Application

Petrochemical Processing

Used in hydrocarbon cracking furnaces and pyrolysis systems. The Incoloy Seamless Tube withstands carburizing atmospheres at high pressures without failure.

Nuclear Power Generation

Employed in steam generator tubing and high-pressure piping. Resists intergranular attack from radioactive coolants.

Marine and Offshore Engineering

Used in seawater heat exchangers and desalination systems. Up to 20+ year service life in corrosive splash zones.

Chemical Processing

Suitable for Sulphuric and Phosphoric acid conditions. Incoloy 825 grades are stabilised with titanium and copper for better acid resistance.

Aerospace and Defense

Supports high-temperature exhaust systems and propulsion components where failure is not an option.

Factory 

TSM Technology operates a 60,000㎡ state-of-the-art manufacturing facility equipped with:

• Advanced melting furnaces for precise alloy composition control
• Rotary piercing mills for seamless tube production
• Multi-stage cold drawing lines for dimensional accuracy
• Heat treatment furnaces with atmosphere control
• Comprehensive non-destructive testing laboratory

Our facility meets international standards for aerospace, nuclear, and petrochemical component manufacturing. Regular audits maintain our ISO 9001, AS9100D, and AS9120 certifications.

What is the Production Process of Incoloy Seamless Tube?

1. Raw Material Selection

We source only high-purity nickel, chromium, and iron from qualified suppliers. Each batch undergoes incoming inspection.

2. Melting and Casting

Materials are melted in controlled atmospheres to avoid contamination. The billets are cast to a consistent composition.

3. Hot Extrusion or Rotary Piercing 

Hollow tubes are made by piercing heated billets. The technique is flawless, with no weld lines at all.

4. Cold Drawing

Tubes pass through precision dies to achieve exact dimensions. Multiple drawing passes ensure tight tolerances.

5. Heat Treatment

Solution annealing at controlled temperatures optimizes mechanical properties. Rapid cooling preserves austenitic structure.

6. Surface Finishing

Bright annealing, pickling, or polishing per your requirements. Surfaces are prepared to prevent contamination in sensitive applications.

7. Final Inspection

Every tube undergoes dimensional checks, hydrostatic testing, and non-destructive testing before shipment.

Quality Inspection

Our 60,000㎡ modern facility houses a comprehensive inspection center:

• Ultrasonic Testing (UT) – Detects internal flaws
• Eddy Current Testing (ECT) – Identifies surface and subsurface defects
• Hydrostatic Testing – Verifies pressure integrity
• Chemical Composition Analysis – Ensures alloy compliance
• Mechanical Property Testing – Confirms tensile strength and elongation
• Dimensional Verification – Guarantees specification accuracy

You receive Incoloy Seamless Tube complete traceability documentation including MTC, QAC, ITP, and third-party certifications from SGS, BV, or TUV.

Why Choose TSM Technology?

Proven Manufacturing Scale

Our 100+ precision machines and monthly capacity of 100–200 tons meet your volume requirements consistently.

Aerospace-Grade Certification

AS9100D certification proves our capability to meet the strictest quality standards in high-tech industries.

Global Reach

With 14+ years of experience serving 70+ countries, we understand international standards and logistics challenges.

Full-Process Control

From melting to packaging, we control every production step in-house. You get consistent quality without third-party dependencies.

Technical Support

Our R&D team provides material selection guidance and application consulting. We help you choose the right grade for your specific environment.

Flexible Customization

Need non-standard dimensions? Our engineering team accommodates custom OD, WT, and length specifications.

Package and Shipping

Packaging Standards

• Tubes are capped with plastic end protectors
• Bundled with steel straps for stability
• Wrapped in waterproof paper and plastic film
• Wooden cases or pallets for international shipping
• Custom packaging available per your requirements

Shipping Options

We rely on reputable logistics partners for delivery by sea, air and express. With our base in Hong Kong, we can distribute globally in an effective manner.

Every shipment is fully documented with certifications, packing lists and customs documents.

FAQ

Q: What is the difference between Incoloy and Inconel tubes?

A: Incoloy includes more iron and is less expensive for high temperature applications. Inconel has a nickel content very high for the most demanding conditions. Select according to your particular temperature and corrosion needs.

Q: What is the maximum service temperature of Incoloy 800H Seamless Tube?

A: It's intended for continuous use at temperatures over 1100°F (593°C) with oxidation resistance to 1600°F. H grade - increased creep strength for extended duration high temperature service.

Q: Can these tubes be utilised in sulfuric acid environments? 

A: Yes. Incoloy 825 grades are specially stabilised with titanium and copper additives for resistance to sulfuric and phosphoric acid. Always check with our technical experts for the concentration and temperature conditions.

Q: Why use seamless Incoloy tubes instead of welded?

A: The seamless structure removes the heat affected zone (HAZ) that is prone to localised corrosion. You gain greater pressure ratings and you remove the single point of main failure in important systems.

Q: Which certifications should you ask for?

A: Always ask for a comprehensive EN 10204 3.1 Mill Test Certificate (MTC) with traceability, chemical analysis and mechanical test findings. We also give third party certifications such as SGS, BV or TUV if required.

Q: What is your MOQ?

A: Minimum order is merely 50kg. We have several grades in stock. That flexibility lets you control your inventory expenditures, while still keep the supplies flowing.

Q: Do you support custom dimensions? 

A: For sure. Our technical staff is capable of handling non-standard OD, WT and lengths specs. Tell us what you need and we’ll let you know whether we can do it – and when – within 24 hours.

Contact Us

Ready to enhance your system reliability with premium Incoloy Seamless Tube? Our technical team is standing by to discuss your specific application requirements. Reach us at info@tsmnialloy.com today.