Hastelloy Seamless Tube

Hastelloy Seamless Tube – Premium Corrosion-Resistant Tubing Solutions

Our Hastelloy Seamless Tubes eliminate the risk of weld decay through continuous, seamless construction, ensuring superior structural integrity for high-pressure chemical transport. Our factory is 50000㎡ and has more than 100 pieces of precise equipment. We manufacture 100-200 tonnes per month according to ASTM B622 and ASME. Our tubes range from 6 to 219 mm OD and 0.5 to 15 mm wall thickness, and are used in demanding situations where typical materials fail. With ISO 9001, AS9100D, and AS9120 certifications, TSM provides consistent quality on every shipment. With MTR, SGS and TUV documents you have perfect traceability.

What are Hastelloy Seamless Tubes?

The product is a nickel based alloy pipe component made without any welded seams. You have the advantage of a continuous structure via extrusion or cold drawing. This removes the heat affected zone of welded pipes, which is the main failure site in corrosive media.

Catastrophic environmental or financial damage may result from spills during hazardous chemical transport. Our seamless construction ensures consistent corrosion resistance throughout the whole tube wall. You wipe off the “weld decay” pain point that jeopardises safety in your vital operations. The seamless structure gives uniform mechanical qualities. Your systems retain integrity during high pressure and temperature variations.

Specification

Physical and Chemical Properties

Product Standards

Our tubes strictly conform to international specifications:

• ASTM B622 – Standard specification for seamless nickel-alloy pipe and tube
• ASTM B619 – Welded nickel and nickel-cobalt alloy pipe
• ASTM B829 – Specification for nickel alloy seamless pipe
• ASME SB622 – Pressure vessel code requirements
• JIS G3463 – Japanese Industrial Standards
• DIN 17751 – European seamless tube standards

You receive full compliance documentation with every order.

What are the Features of Hastelloy Seamless Tubes?

Superior Corrosion Resistance

You get exceptional protection against aggressive acids—hydrochloric, sulfuric, and phosphoric. Molybdenum content provides resistance to localized pitting in chloride-rich environments.

No Weld Seam Vulnerability

Your systems avoid heat-affected zone weaknesses. The continuous structure eliminates preferential corrosion attack points.

High-Temperature Stability

You maintain mechanical strength from cryogenic temperatures to 815°C. Thermal cycling doesn't compromise tube integrity.

Pressure Integrity

Uniform wall thickness supports high-pressure applications. You achieve reliable containment in demanding conditions.

Low Maintenance

The smooth internal surface prevents bacterial entrapment. You reduce cleaning frequency and extend service life.

Application

Chemical Processing Industry

You can safely handle aggressive mineral acids in heat exchangers and reactor vessels. Where standard stainless steels fail within weeks, our Hastelloy Seamless Tube performs for years.

Oil and Gas (Upstream)

In sour gas wells, you face high H2S and CO2 concentrations under extreme pressure. Our tubes serve as downhole production tubing, resisting sulfide stress cracking.

Pharmaceutical and Biotech

You need high-purity piping systems for sterile processing. The seamless construction withstands Clean-in-Place chemicals without leaching metallic ions into your products.

Marine Engineering

Seawater environments demand materials resistant to chloride-induced corrosion. You get reliable performance in desalination plants and offshore platforms.

Chemical Processing Industry

Oil and Gas (Upstream)

Pharmaceutical and Biotech

Marine Engineering

Factory 

TSM Technology operates a Hastelloy Seamless Tube vertically integrated facility:

• Melting and Forging Department: Controlled atmosphere furnaces ensure alloy purity
• Rolling and Drawing Workshop: Multi-stage equipment achieves precise dimensions
• Heat Treatment Zone: Computer-controlled annealing furnaces optimize microstructure
• Quality Control Laboratory: Advanced testing equipment validates every specification
• Warehouse and Packaging: Climate-controlled storage protects tubes until shipment

What is the Production Process of Hastelloy Seamless Tubes?

Raw Material Selection

We source high-purity nickel alloy billets from qualified suppliers. Chemical composition is verified before production begins.

Hot Extrusion

Billets are heated to 1200°C and pierced to create hollow shells. You get initial tube formation with controlled dimensions.

Cold Drawing

Multiple passes through tungsten carbide dies reduce diameter and refine wall thickness. This enhances surface finish and dimensional accuracy.

Solution Annealing

Tubes are heated to 1050–1150°C and rapidly quenched. This process relieves internal stress and optimizes corrosion resistance.

Pickling and Passivation

Acid treatment removes surface oxides. Passivation forms a protective chromium-rich layer.

Final Inspection

Every tube undergoes dimensional checks and surface examination before delivery.

Quality Inspection

We implement comprehensive testing protocols:

Hydrostatic Testing

Each tube is pressure-tested to 1.5× working pressure. You verify containment capability before installation.

Non-Destructive Testing (NDT)

• Eddy Current Testing detects surface cracks
• Ultrasonic Testing identifies internal flaws
• Wall thickness variations are mapped across the entire length

Positive Material Identification (PMI)

Handheld XRF analyzers confirm alloy grade. You receive exactly what you ordered.

Intergranular Corrosion Testing

ASTM G28 tests ensure proper heat treatment. Microstructure integrity is verified.

Mechanical Property Testing

Tensile strength, yield strength, and elongation are measured on sample lots.

Mechanical Property Testing

Non-Destructive Testing (NDT)

Hydrostatic Testing

Positive Material Identification (PMI)

Why Choose TSM Technology?

Proven Manufacturing Excellence

Our 50,000㎡ facility houses over 100 precision machines. You benefit from 14+ years of alloy manufacturing expertise.

Aerospace-Grade Quality

AS9100D certification demonstrates our capability for critical applications. We've supplied titanium alloys for large aircraft projects.

Global Service Network

We export to 70+ countries with reliable logistics through our Hong Kong hub. You receive timely delivery wherever you operate.

Complete Traceability

Every shipment includes Mill Test Certificates per EN 10204 3.1. You get full chemical composition and heat number documentation.

Technical Support

Our engineering team provides material selection guidance and application consultation. You make informed decisions for your specific environment.

Package and Shipping

Protective Packaging

Tubes are bundled with wooden spacers and wrapped in waterproof film. End caps protect threaded connections.

Export-Standard Crates

Plywood cases meet ISPM 15 fumigation requirements. You clear customs without delays.

Shipping Options

• Sea Freight: Economical for large orders
• Air Freight: Fast delivery for urgent requirements
• Express Courier: Sample shipments reach you quickly

Documentation

Commercial invoice, packing list, and certificates accompany every shipment. You receive complete import documentation.

FAQ

Q: Why is the product more expensive than welded options?

A: The cost reflects complex manufacturing processes like hot extrusion and cold drawing. You eliminate weld-related failure risks—the premium pays for reliability in critical applications where leaks cause catastrophic losses.

Q: Can these tubes be used in oxidizing environments?

A: Yes. Grades like C22 contain high chromium content for excellent oxidizing media resistance. You get versatility across both reducing and oxidizing conditions.

Q: What is ASTM B622 specification?

A. This standard covers the mechanical and chemical consistency of seamless nickel-alloy tubing. You end up with items that meet globally recognised quality criteria.

Q: What does molybdenum do to increase tube performance?

A: Resistance to local pitting and crevice corrosion in chloride conditions requires molybdenum. You will have a longer service life in seawater and brine applications.

Q: Is a Mill Test Certificate (MTC) necessary for purchase?

A: Yes, of course. A certified MTC per EN 10204 3.1, including heat number, chemical composition and mechanical test results. You assure authenticity of materials and regulatory compliance.

Q: What delivery times can I expect?

A: Standard sizes ship in 20–30 days. Custom specifications require 35–45 days. Some popular sizes are in stock for immediate delivery.

Q: Do you provide technical consultation for material selection?

A: Yes. Our metallurgy team analyzes your operating conditions—temperature, pressure, and chemical environment—to recommend the optimal Hastelloy grade.

Contact Us

Ready to solve your Hastelloy Seamless Tube corrosion challenges? Reach out to TSM Technology today for technical specifications and quotations. Email us at info@tsmnialloy.com for expert guidance.