TOBO Nickel Alloy Seamless Pipes: ASME Standard for Critical Applications

Product Specification

TOBO Nickel Alloy Seamless Pipes: ASME Standard for Critical Applications

Overview
TOBO Nickel Alloy Pipes are precision-engineered for the most demanding industrial applications, where standard stainless steels reach their limits. Manufactured in full compliance with ASME material and dimensional standards, these pipes leverage the superior properties of high-performance nickel-chromium-based alloys. They offer exceptional resistance to extreme heat, high-pressure corrosion, and oxidizing or reducing chemical environments. This makes them an indispensable component for ensuring safety, efficiency, and longevity in critical processes within the energy, chemical, and aerospace sectors, where material failure is not an option.

1. Product Description
TOBO Nickel Alloy Pipes are produced from a range of advanced austenitic nickel-chromium alloys, such as Alloy 600, 625, 800/800H, and C-276. These materials are defined by their high nickel content, which provides inherent ductility and toughness, combined with strategic additions of chromium, molybdenum, and niobium for enhanced specific properties. We supply both seamless and welded pipes, undergoing stringent quality control and heat treatment processes to ensure optimal microstructure and performance for severe service conditions.

2. Key Specifications

• Material Standards: Compliant with ASTM/ASME SB-163, SB-167, SB-444, SB-622 for various alloy grades.

• Common Alloys: UNS N06600 (Alloy 600), N06625 (Alloy 625), N08810/11 (Alloy 800H/HT), N10276 (Hastelloy C-276).

• Size & Schedule: Available in a broad range, typically from 1/8" NPS to 24" NPS, in standard schedules including SCH 40S, 80S, 160S.

• Dimensional Standards: Manufactured to ASME B36.10M and B36.19M.

• Temperature Capability: Designed to maintain strength and corrosion resistance from cryogenic temperatures up to 1200°C (2200°F), depending on the alloy.

3. Application
These pipes are specified for critical service in aggressive environments:

• Oil & Gas (Upstream/Downstream): Downhole tubing, wellhead components, and process lines in sour gas (H2S) service, and hydrocracker units.

• Chemical & Petrochemical Processing: Reactor internals, heater tubes, and transfer lines for aggressive acids (e.g., sulfuric, hydrochloric) and catalysts.

• Power Generation: Superheater and reheater tubes in boilers, heat recovery steam generators (HRSGs), and nuclear reactor components.

• Aerospace & Marine: Exhaust systems, gas turbine components, and seawater handling parts requiring high strength-to-weight ratio and corrosion resistance.

• Pollution Control & Waste Incineration: Ducting and reactor piping in flue gas cleaning and high-temperature waste processing systems.

4. Key Advantages

• Superior High-Temperature Strength: Excellent creep rupture strength and resistance to oxidation/carburization at elevated temperatures.

• Outstanding Corrosion Resistance: Unmatched resistance to a wide range of corrosive media, including pitting, stress corrosion cracking (SCC), and reducing acids.

• Long-Term Stability: Maintains microstructural stability and does not form harmful phases after prolonged exposure to high temperatures, ensuring predictable lifespan.

• Fabricability: Can be welded, forged, and formed using specialized procedures, allowing for the construction of complex high-performance systems.

• Lifecycle Value: Though a premium material, its durability in extreme conditions prevents costly unplanned shutdowns and replacements, offering excellent long-term economics.

5. Function
The primary function of TOBO Nickel Alloy Pipes is to provide a reliable and permanent pressure boundary in environments that combine high thermal stress, extreme pressure, and severe corrosion. They are engineered to maintain containment integrity, ensure process safety, and facilitate efficient heat transfer under conditions that would rapidly degrade lesser materials. By doing so, they enable advanced industrial processes, protect capital-intensive equipment, and are fundamental to the operation of modern, high-efficiency power and chemical plants

Payment & Invoicing

1. First-Time Clients: 50% advance payment, 50% balance before shipment.
2. Strategic Clients: 30% advance, 70% payment against copy of Bill of Lading.
3. Long-Term Agreements: 60-day credit terms available (subject to credit approval).
4. Invoicing: 13% VAT Special Invoice provided; FORM A Certificate of Origin for exports.
5. fication System: Laser marking includes material code, pressure rating, and flow direction arrows.

FAQ

1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the Alibaba certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.