Inconel 601 Seamless Pipe & Inconel 601 Tube Suppliers in USA
USA Piping Solution manufactures and supplies Inconel 601 Pipes & Tubes, a premium nickel-chromium-aluminium superalloy that is designed to provide excellent resistance to high-temperature oxidation, carburisation, and scaling. Inconel 601 (UNS N06601 / DIN 2.4851 / Werkstoff Nr. 2.4851) is the material of choice where structural integrity is required during continuous service to 1250 C (2280 F) and so is essential in industrial furnaces, heat treatment equipment, gas turbines, and petrochemical reformers.
The main feature of alloy 601 pipe compared to other nickel superalloys is the addition of aluminium (1.0-1.7%) that forms a dense, adherent Al2O3 oxide layer on the surface. This obdurate scale can be used as a diffusion inhibitor of both oxygen and carbon, which offers oxidation and carburisation resistance which is significantly better than Inconel 600 at temperatures above 1000 C. Inconel 625 is commonly used along with the alloy in high temperature heat exchangers and reformer tube applications. Browse our full Inconel Pipes & Tubes range and Nickel Alloy Pipes & Tubes.
We offer Inconel 601 seamless pipe, welded pipe, ERW, and fabricated tubes in sizes from 1/8" NB to 12" NB, wall thickness SCH 5 to SCH XXS, in round, square, rectangular, and hydraulic forms. As established Inconel 601 tube suppliers in the USA, we provide full EN 10204 3.1 / 3.2 Mill Test Reports and NACE documentation on request.
Inconel 601 Pipe & Tube Specifications (ASTM B167 / UNS N06601)
| Parameter | Details |
|---|---|
| Grades | Inconel 601 (UNS N06601) |
| Standards | ASTM, ASME, API |
| Seamless Pipe/Tube | ASTM B167 / ASME SB167 |
| Welded Tube | ASTM B516 / ASME SB516 |
| Welded Pipe | ASTM B725 / ASME SB725 |
| Rectangular Pipe | ASTM B775 / ASME SB775 |
| NB Size Range | 1/8" NB to 12" NB (15 NB to 150 NB) |
| Wall Thickness / SCH | SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, XXS |
| Length | Within 12,000 mm (custom lengths available) |
| Type | Seamless / ERW / Welded / Fabricated / LSAW |
| Form | Round, Square, Rectangular, Hydraulic, Capillary, U-Bend |
| End | Plain End, Beveled End, Threaded |
| Delivery Condition | Annealed & Pickled (AP), Bright Annealed (BA), Cold Finished |
| Certification | EN 10204 3.1 / 3.2 MTC, PED, DNV, TUV |
Inconel 601 Equivalent Grades
| Standard | UNS | W.Nr. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| Inconel 601 | N06601 | 2.4851 | NiCr23Fe | NiCr15Fe | NCF 601 | NA 49 | XH60BT / ЭИ868 |
Chemical Composition of Inconel 601 Pipes & Tubes (UNS N06601)
The aluminium addition (1.0-1.7%) forms a protective Al2O3 oxide layer providing exceptional oxidation resistance up to 1250 C, the key differentiator of alloy 601 versus alloy 600.
| Grade | Ni (min) | Cr | Fe | Al | C (max) | Mn (max) | Si (max) | Cu (max) | S (max) |
|---|---|---|---|---|---|---|---|---|---|
| Inconel 601 | 61.5 | 21.0-25.0 | Balance (~14) | 1.0-1.7 | 0.05 | 1.0 | 0.50 | 1.0 | 0.015 |
Mechanical Properties of Inconel 601 Pipes & Tubes
| Property | Density | Melting Point | Tensile Strength (min) | Yield Strength 0.2% (min) | Elongation (min) |
|---|---|---|---|---|---|
| Inconel 601 | 8.1 g/cm3 | 1320-1370 C | 650 MPa | 300 MPa | 30% |
Physical Properties of Alloy 601 Pipe
| Physical Property | Value |
|---|---|
| Density | 8.1 g/cm3 (0.293 lb/in3) |
| Melting Range | 1320-1370 C (2408-2498 F) |
| Max Service Temperature | 1250 C continuous / 1300 C cyclic |
| Modulus of Elasticity (20 C) | 207 GPa (30 x 10^6 psi) |
| Thermal Expansion (20-100 C) | 12.8 um/m.C |
| Thermal Conductivity (20 C) | 11.2 W/m.K |
| Specific Heat (20 C) | 448 J/kg.C |
| Electrical Resistivity (20 C) | 1.19 uOhm.m |
Inconel 601 Pipe Dimensions & Schedule Chart
All pipes manufactured and tested to ASTM, ASME, API standards. Wall thickness values in inches.
| Pipe/Tube | NB Size | SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
|---|---|---|---|---|---|---|
| Inconel 601 Pipe | 1/8" | 0.049 | 0.049 | 0.068 | 0.095 | - |
| Inconel 601 Pipe | 1/4" | 0.065 | 0.065 | 0.088 | 0.119 | - |
| Inconel 601 Pipe | 3/8" | 0.065 | 0.065 | 0.091 | 0.126 | - |
| Inconel 601 Pipe | 1/2" | 0.065 | 0.083 | 0.109 | 0.147 | 0.187 |
| Inconel 601 Pipe | 3/4" | 0.065 | 0.083 | 0.113 | 0.154 | 0.219 |
| Inconel 601 Pipe | 1" | 0.065 | 0.109 | 0.133 | 0.179 | 0.250 |
| Inconel 601 Pipe | 1 1/4" | 0.065 | 0.109 | 0.140 | 0.191 | 0.250 |
| Inconel 601 Pipe | 1 1/2" | 0.065 | 0.109 | 0.145 | 0.200 | 0.281 |
| Inconel 601 Pipe | 2" | 0.065 | 0.109 | 0.154 | 0.218 | 0.343 |
| Inconel 601 Pipe | 2 1/2" | 0.083 | 0.120 | 0.203 | 0.276 | 0.375 |
| Inconel 601 Seamless Pipe | 3" | 0.083 | 0.120 | 0.216 | 0.300 | 0.438 |
| Inconel 601 Pipe | 4" | 0.083 | 0.120 | 0.237 | 0.337 | 0.531 |
| Inconel 601 Seamless Pipe | 5" | 0.109 | 0.134 | 0.258 | 0.375 | 0.625 |
| Inconel 601 Pipe | 6" | 0.109 | 0.134 | 0.280 | 0.432 | 0.718 |
Types of Inconel 601 Pipes & Tubes
USA Piping Solution supplies a comprehensive range of Inconel 601 pipe and tube product forms to meet diverse industrial requirements in heat treatment, petrochemical, power, and aerospace sectors:
- Inconel 601 Seamless Pipe: No weld seam. UNS N06601 seamless pipe for high-temperature furnace, reformer, and thermal processing service. NB 1/8" to 12".
- Inconel 601 Welded Tube: ASME SB516 welded tube for heat exchanger and process service where seamless is not code-required.
- Inconel 601 Welded Pipe: ASME SB725 large-bore welded pipe for high-temperature ducting, exhaust systems, and structural applications.
- Inconel 601 Rectangular Pipe: ASME SB775 rectangular / square tube for furnace supports, radiant tube assemblies, and structural fabrications.
- Inconel 601 Seamless Tube: Close-tolerance seamless tube for heat exchanger bundles, thermowell protection, and precision thermal instruments.
- Inconel 601 ERW Pipe: Electric resistance welded alloy 601 pipe for general high-temperature process piping at competitive pricing.
- Inconel 601 Capillary Tube: Ultra-small OD capillary tubes for thermocouple sheaths, instrument protection, and precision heat treatment applications.
- EN 2.4851 Cold-Finished Pipe: Cold-drawn and cold-finished for precise OD/wall tolerances in instrumentation, hydraulic lines, and close-fit assemblies.
- DIN 2.4851 Annealed Pipe: Solution annealed and pickled (AP) or bright annealed (BA) condition for maximum corrosion resistance and ductility.
Other Types of Inconel 601 Pipes & Tubes Available
- Inconel 601 Precision Tubes
- Inconel Alloy 601 Rectangular Tubes
- Inconel 601 Seamless Pipes
- Inconel 601 Square Pipes
- Inconel UNS N06601 Seamless Tubes
- Inconel Alloy 601 Square Tubes
- Inconel Werkstoff Nr. 2.4851 Welded Pipes
- Inconel 601 Hollow Pipes
- Inconel JIS NCF 601 Welded Tubes
- Inconel 601 Hollow Tubes
- Inconel 601 Round Pipes
- ASTM B167 Inconel 601 EFW Pipes
- Inconel 601 ERW Pipes
- Inconel Alloy 601 EFW Tubes
- Inconel 601 ERW Tubes
- ASTM B167 Inconel 601 Capillary Pipes
- Inconel 601 Alloy Rectangular Pipes
- Inconel 601 Capillary Tubes
- ASME SB167 Inconel 601 Pipes & Tubes
- Pyromet 601 Rectangular Pipe
Welding Inconel 601 Pipe & Tube
Inconel 601 pipe is readily weldable by GTAW (TIG), GMAW (MIG), SMAW, and SAW processes. Welding guidelines for alloy 601 tube:
- Filler metal: ERNiCrFe-11 (Alloy 601 matching filler) for GTAW/GMAW; ENiCrFe-11 for SMAW.
- No pre-heat required for normal wall thickness.
- No post-weld heat treatment (PWHT) required for most applications.
- Keep interpass temperature below 150 C to minimise thermal stress.
- Back purge with argon for root passes; argon shielding gas recommended for TIG welding.
- Joint preparation: clean to bare metal; avoid contamination from carbon steel tools.
Key Advantages of Inconel 601 Pipes & Tubes
- Outstanding oxidation resistance to 1250°C— Al₂O₃ scale forms rapidly and heals on cracking, providing continuous protection at extreme temperatures
- Superior carburisation resistance— resists carbon ingress in hydrocarbon atmospheres, extending tube life in reformers and pyrolysis furnaces
- High-temperature mechanical strength— maintains tensile and creep strength at temperatures where austenitic stainless steels fail
- Good resistance to oxidising and reducing atmospheres including steam, nitrogen, and combustion gas environments
- Excellent cyclic oxidation resistance— tightly adherent Al₂O₃ scale resists spalling during thermal cycling in intermittent furnace service
- Good aqueous corrosion resistance— the high nickel (61.5% min) and chromium (21–25%) content provides general corrosion resistance in chemical environments
- Ready weldability with matching ERNiCrFe-11 filler — no PWHT required for most industrial applications
- Versatile product range— seamless, welded, ERW, rectangular, capillary, and precision-drawn forms from one supplier
Applications of Alloy 601 Tubes
Inconel 601 pipe and alloy 601 tube are specified across industries where high-temperature structural integrity is the primary requirement:
- Industrial furnace muffle tubes, radiant tubes, and retort liners.
- Heat treatment equipment such as annealing baskets, carburising fixtures, and quench racks.
- Gas turbine combustion liners, transition ducts, and exhaust components.
- Steam reformer tubes in hydrogen and ammonia production.
- Ethylene cracking furnace tubes and transfer line components.
- Thermal oxidisers and incinerator lining components.
- Power generation boiler superheaters and reheaters.
- Petrochemical and chemical processing at temperatures above 900 C.
- Marine exhaust systems and high-temperature ducting.
- Oil refinery catalyst regenerators and process heaters.
- Flue gas desulfurisation (FGD) and waste incineration systems.
- Thermocouple protection sheaths and high-temperature instrumentation.
For high-temperature wet corrosion or sour gas service, compare with Inconel 625 Pipes & Tubes and Incoloy 825 Pipes & Tubes. For extreme temperature furnace duty, Incoloy 800H / 800HT offers comparable oxidation resistance with higher creep strength above 871 C.
Why Choose USA Piping Solution as Inconel 601 Tube Suppliers?
- Full standard compliance. ASTM B167 / ASME SB167 seamless, ASTM B516 / B725 welded, with EN 10204 3.1/3.2 Mill Test Reports, PED, DNV, TUV certification.
- Complete size range. NB 1/8" to 12", all schedules SCH 5 to XXS, in round, square, rectangular, hydraulic, capillary forms.
- Value-added processing. Cut-to-length, bevelling, threading, U-bending, pickling, electropolishing, hydrostatic and UT testing.
- Quality traceability. Heat number marked on each piece/bundle; packing lists cross-referenced to MTCs for multi-lot deliveries.
- Fast global delivery. Stocked standard sizes for immediate despatch; expedited production for project and shutdown requirements.
- Technical expertise. Our metallurgical team advises on alloy 601 vs 600 vs 625 selection, welding procedures, and high-temperature service qualification.
Related Products
Inconel 600 Pipes | Inconel 625 Pipes | Inconel 718 Pipes | Incoloy 800 Pipes | Incoloy 825 Pipes | Nickel Alloy Pipes | Inconel Plates & Sheets | Seamless Inconel Pipe | Welded Inconel Pipe | Exotic Alloy Pipes