ASTM B167 Inconel 601 Seamless Pipe & Tubing | Power Plant Solutions

ASTM B167 Inconel 601 Seamless Pipe & Tubing | Power Plant Solutions
In critical infrastructure such as power generation and petrochemical processing, the integrity of high-pressure pipelines is paramount and cannot be compromised. ASTM B167 Inconel 601 (UNS N06601) has proven to be the most reliable high-pressure pipeline solution for extreme high-temperature (up to 1180°C) and corrosive combustible gas environments.
As a professional manufacturer, Gnee Steel provides EPC engineering companies with seamless steel pipes conforming to ASTM B167 standards, ensuring the long-term operational safety of thermal power plants and minimizing downtime.
Is Inconel 601 magnetic?
Inconel 601 sheets exhibit excellent oxidation and corrosion resistance over extremely high temperature ranges. It is non-magnetic and possesses excellent mechanical properties. Inconel 601 sheets have high strength, good processability, and weldability.


Gnee Steel, a trusted manufacturer and supplier, offers Inconel 601 seamless steel tubing. Inconel 601, also known as 601 alloy, is an austenitic alloy steel tubing primarily composed of nickel (58-63%), chromium (21-25%), and aluminum (1-1.7%), with added iron and controlled levels of carbon, manganese, silicon, sulfur, and phosphorus.
We manufacture Inconel 601 seamless steel tubing strictly according to ASTM B167 standards, employing advanced manufacturing processes to ensure dimensional accuracy and undergoing comprehensive testing and inspection. This steel tubing exhibits resistance to carburization, stable thermal conductivity, and maintains good mechanical strength even at sustained high temperatures. 601 alloy seamless nickel steel tubing possesses excellent metallurgical stability, resistance to stress corrosion cracking, high creep strength, and reliable stress fracture strength-all properties attributed to its strictly controlled carbon content. Our Inconel 601 tubing solutions are widely used in applications requiring long service life, such as heat exchangers, furnaces, boilers, superheaters, reheaters, and steam turbines.
Our 601 alloy pipes are manufactured according to stringent industry requirements:

ASTM / ASME Specifications Alloy 601 Seamless pipe
| Attribute | Details |
|---|---|
| Material Grade | Inconel 601 (UNS N06601 / WNR 2.4851) |
| Standards | ASTM B163, B516 / ASME SB163, SB516 |
| Outer Diameter | 6 mm to 50.8 mm |
| Wall Thickness | 0.7 mm to 3 mm |
| Length Options | Single Random, Double Random, Cut Length |
| Tube Forms | Seamless, Welded, ERW, Fabricated, LSAW |
| Shapes Available | Round, Square, Rectangular, Hydraulic |
| End Types | Plain End, Beveled End, Threaded |
| Surface Finishes | Bright Annealed, Pickled, Polished |
| Schedules Offered | SCH20, SCH40, SCH80, SCH160, XXS, Custom |
| Manufacturing Method | Cold Drawn, Hot Finished, Annealed |
Equivalent Grades of Inconel 601 Pipe
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST | OR |
|---|---|---|---|---|---|---|---|---|
| Alloy 601 | N06601 | 2.4851 | NiCr23Fe | NiCr15Fe | NCF 601 | NA 49 | XH60BT | ЭИ868 |
Chemical Composition of Inconel 601 Tube
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
|---|---|---|---|---|---|---|---|---|
| Inconel 601 | 0.10 max | 1.0 max | 0.5 max | 0.015 max | 1.0 max | Balance | 58.0 – 63.0 | 21.0 – 25.0 |
Mechanical Properties of Uns N06601 Pipe
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
1. Seamless vs. Welded Pipe: Why Engineering Leaders Choose Seamless Pipe
For high-voltage power plant systems, the choice between seamless and welded pipe is crucial. While welded pipe is more cost-effective in low-pressure applications, our Inconel 601 seamless pipe offers the following advantages:
Zero Weld Seams: Eliminates the risk of intergranular corrosion or weld failure under extreme thermal stress.
Superior Pressure Rating: Capable of withstanding higher internal pressures than welded pipe.
Uniform Microstructure: Ensures consistent coefficient of thermal expansion and mechanical properties throughout the pipe length.
📦 Check Inconel 601 Pipe Stock Availability
2. Comprehensive Size Specifications (Outer Diameter and Wall Thickness)
We maintain ample inventory and custom production capabilities to meet the needs of a wide range of EPC projects:
Outer Diameter (OD): 6.0 mm to 630.0 mm (1/4 inch to 24 inch NPS).
Wall Thickness (WT): 0.5 mm to 30.0 mm (Sch 5S, 10S, 40S, 80S, 160, XXS). Length: Single random length, double random length, or custom length, up to 12 meters.
Standards: Manufactured strictly according to ASTM B167 / ASME SB167 and ASTM B163 (for heat exchangers) standards.
🛠️ Request a Technical Quote for EPC Projects
3. Superior Quality: 100% Non-Destructive Testing
To ensure the reliability of every pipe, we implement a rigorous quality assurance process. All pipes leaving the factory undergo the following tests:
100% Hydrostatic Testing: Verifies the structural integrity of the pipe under extreme internal pressure.
Ultrasonic Testing (UT): Precisely detects internal defects or inclusions.
Eddy Current Testing: Identifies surface and subsurface defects in thin-walled pipes.
PMI (Positive Material Qualification): Confirms the nickel-chromium-aluminum chemical composition of each batch of pipes.




4. Gnee Steel Inconel 601 Certificate
We understand the complex documentation requirements of international engineering projects:
Compliant with MTC EN 10204 3.1 Standard: Each shipment comes with a complete factory test certificate, ensuring full traceability.
Third-Party Inspection: We fully support witnessed inspections by SGS, TUV, BV, or Lloyd's.
Global Logistics: Efficient CIF/DDP shipping to major power hubs in Germany, Italy, Brazil, and Saudi Arabia.

Gnee Steel Uns N06601 Certificate
🚀 Secure Your Critical Piping Supply
Partner with a top manufacturer that understands the technical needs of EPC projects and power plant infrastructure.
View Inconel 601 Piping Inventory
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All Nickel Based Alloy products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express

Gnee Steel 601 Packing
Contact us for the latest export price quote for Inconel 601 metal
FAQ
Q: Can Inconel 601 be used in waste heat boilers?
A: Absolutely. Its excellent oxidation and carburization resistance makes it ideal for waste incineration power generation and waste heat boiler tube bundles where temperatures fluctuate frequently.
Q: Do you offer U-bending services for heat exchanger tubes?
A: Yes. We offer precision U-bending services for Inconel 601 tubes, including post-bending stress relief and pressure testing, ensuring they can be directly installed into your heat exchanger tube bundles.
Q: What is the typical lead time for non-standard specifications?
A: We have standard specifications in stock, but custom production typically takes 4 to 6 weeks, depending on order quantity and specific testing requirements.
Q: Where can I quickly purchase Inconel 601 alloy pipe?
A: Customers can purchase Inconel 601 alloy pipe directly from Gnee Steel and enjoy fast delivery. As a reliable Inconel 601 pipe supplier located in China, our lead time for in-stock products is approximately one week, and for production orders, it is 15-60 days, depending on the complexity and quantity of the product.
Q: Which ASTM standards are compatible with Inconel 601 pipe?
A: Inconel 601 pipe is primarily compatible with ASTM B167 standards. We also manufacture pipes that meet ASME SB167 standards.





