01
Inconel 601 Seamless Pipe
Hot-worked and cold-worked annealed pipe to ASTM B167 for furnace and reformer lines.
Request Availability →Inconel 601 Pipe and Tube — Oxide-Scale Tubulars
Seamless and welded UNS N06601 tube to B167, B163, and B516 for furnace, reformer, and heat-exchanger duty.
Seamless and Welded Coverage
B167 and B163 seamless product is quoted alongside B516 welded tube under one UNS N06601 enquiry.
Oxide Scale Engineered In
Aluminium at 1.0–1.7% is held inside a narrow band so the scale keeps forming through service.
Furnace-Oriented Paperwork
Chemistry, mechanical, and traceability records are compiled for reformer and incinerator review.
PRODUCT OVERVIEW
About Inconel 601 Pipe and Tube
Inconel 601 Pipe and Tube is produced in UNS N06601, an alumina-forming grade for oxidizing furnace service. Because aluminium sits in the chemistry, the oxide scale stays attached where plain chromia scales flake away. Each length is quoted from B167, B163, or B516.
Grade-level data sits on the Inconel 601 hub, and the two other forms are covered on the Inconel 601 Bar and Rod and Inconel 601 Sheet and Plate pages.
PRODUCT FEATURES
Key Features of Inconel 601 Pipe and Tube
Inconel 601 pipe and tube covers seamless product to ASTM B167 and B163, plus welded tube to B516, quoted against schedule or drawing. Sizes run from precision exchanger tube to large-diameter furnace piping, delivered annealed or hot-finished. Aluminium at 1.0-1.7% forms the oxide scale that carries these lines past 1000 °C. EN 10204 3.1 certificates and heat-level traceability back furnace, reformer, and incinerator projects.
Inconel 601
Oxidation Ceiling Near 1250 °C
Furnace tubing holds a protective scale in air well above the range where austenitic stainless grades scale away.
01
Carburization and Nitriding Duty
Tube survives carbon-rich and nitrogen-rich atmospheres that embrittle ordinary heat-exchanger materials.
02
Seamless and Welded Routes
B167 and B163 cover seamless product, while B516 governs the welded tube option.
03
Thermal Cycling Stability
Repeated heat-up and cool-down leave the alumina scale intact, so spalling shutdowns are avoided.
04
Sulphur-Bearing Gas Service
Chromium with aluminium tolerates oxidizing sulphur gases from oil- and gas-fired combustion.
05
Strength Retained Above 900 °C
Short-time tensile and creep strength stay useful well into the furnace temperature band.
06
Heat-Level Traceability
The 3.1 certificate carries the melting heat number for every length shipped.
07
WHY CHOOSE US
Why Choose Inconel 601
For tubular work, Southerly Alloy keeps the commercial relationship while audited partner plants melt, pierce, and finish the tube. Your enquiry goes straight to the mill that runs that route. As a result, condition and documentation questions stay in one thread.
01
Seamless or Welded Guidance
The manufacturing route is fixed against pressure, diameter, and budget before the quotation is issued.
02
Range Held Under One Desk
Exchanger tube at 6 mm OD and furnace pipe at NPS 24 are quoted side by side.
03
Testing Scope Fixed at Order
Hydrostatic, eddy-current, PMI, and third-party inspection are attached at order stage.
04
Delivery Planning
Crating, Incoterm selection, and export documents are settled before the tubes leave the plant.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
Each UNS N06601 heat moves through melt, hot working, cold finishing, and annealing before release. Additionally, the route adjusts to the standard, condition, and acceptance level on the order.
01
Melt Preparation
Nickel, chromium, and iron are weighed to the N06601 window, with aluminium added to a controlled target.
02
Refining
AOD or VOD refining holds carbon and sulphur in check, and ESR refines the ingot further where cleanliness demands it.
03
Hot Working
Billets are hot pierced or extruded into seamless shells, while welded tube starts from flat-rolled strip.
04
Cold Finishing
Cold pilgering or drawing brings exchanger and precision tube to the final outside diameter and wall.
05
Solution Annealing
Tube is annealed between 1100 and 1200 °C and cooled rapidly to set the oxide-forming structure.
06
Finishing and Testing
Product is pickled, dimension-checked, and tested to the acceptance level named on the order.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Seamless and welded UNS N06601 tube covers precision exchanger sizes through large furnace piping. Each order is checked against our rolling and annealing plan before production starts. Consequently, what is quoted at enquiry is what leaves the plant.
20,000+ m²
Factory Area
Melting, tube rolling, and annealing halls sit on one production site.
50+
Production Machines
Pilgering, drawing, welding, and finishing lines run under a single quality system.
600 Tons
Monthly Capacity
Nickel alloy tubular output across stock and made-to-order sizes.
30+
Technical Engineers
Metallurgists match the annealing condition to the furnace duty before release.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
Before release, every batch is cleared on chemistry, mechanics, dimensions, and surface. That verification runs inside the ISO 9001 system. Above all, a 3.1 certificate accompanies each shipment, and third-party inspection can be booked onto the order.
01
Heat Chemistry Verification
Each heat is analysed by spectrometer, and the aluminium result is reported with the chromium figure.
02
Tension and Hardness Results
Tensile, yield, and elongation values come from the delivered condition and size band.
03
Dimensional and NDE Records
OD, wall, straightness, and finish are checked, with hydrostatic or eddy-current testing where specified.
04
Certificate Pack
Heat numbers on the certificate map each length back to its melting charge.
PRODUCT FORMS
Available Product Forms
Six tubular forms cover the UNS N06601 range, and each follows its own standard and finishing route.
02
Inconel 601 Seamless Tube
Condenser and heat-exchanger tube to ASTM B163, with B829 general requirements applied.
Request Availability →
03
Inconel 601 Welded Tube
Cold-worked and annealed welded tube to ASTM B516, formed from flat-rolled strip.
Request Availability →
04
Inconel 601 Welded Pipe
Large-diameter welded pipe quoted against B516 tube quality or the project specification.
Request Availability →
05
Coil and U-Bend Tube
Continuous coil and custom U-bends drawn from B163 base material for exchanger bundles.
Request Availability →
06
EP / BA Tube
Electropolished and bright annealed tube for clean chemical and high-purity duty.
Request Availability →
APPLICATIONS
Engineered For Demanding Industries
Tubular duty here is set by furnace atmosphere and cycling rate rather than by liquid corrosion. Accordingly, the uses below pair oxidation or carburizing performance with the temperature each line carries.
Discuss Your Application →
01
Radiant Tubes and Muffles
Furnace tubes and covers running hot in air between 900 and 1100 °C without shedding scale.
02
Carburizing Furnace Internals
Retorts and support tubing exposed to carbon-rich atmospheres at temperature.
03
Reformer and Cracking Furnace Tubes
Petrochemical heater tubing carrying cyclic thermal stress in oxidizing gas.
04
High-Temperature Heat Exchangers
Exchanger tubing above 800 °C where scale spalling, not pitting, limits service life.
05
Thermocouple Protection Tubes
Sheaths for sensors reading hot gas streams in boilers and incinerators.
06
Ammonia and Nitric Acid Plant Tubing
Insulation cans, catalyst grids, and high-temperature process internals.
07
Incineration and Flue Gas Ducts
Components in waste incineration and thermal oxidizer gas paths.
08
Heat-Treatment Fixture Tubing
Trays, baskets, and supports cycling through carburizing and nitriding campaigns.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
The window below covers the B167, B163, and B516 tubular family for UNS N06601. Aluminium carries a narrow 1.0–1.7% range because it governs scale formation. However, the purchase specification in force decides acceptance.
| Element | Content |
|---|---|
| Nickel (Ni) | 58.0–63.0% |
| Chromium (Cr) | 21.0–25.0% |
| Aluminium (Al) | 1.0–1.7% |
| Iron (Fe) | Balance |
| Carbon (C) | 0.10% max. |
| Manganese (Mn) | 1.00% max. |
| Silicon (Si) | 0.50% max. |
| Copper (Cu) | 1.00% max. |
| Sulphur (S) | 0.015% max. |
Mechanical Properties
Minimum room-temperature values below follow the governing standard, condition, and size band. Therefore, the applicable ASTM condition must be stated for final acceptance.
| Product Form | Standard | Condition | Tensile Strength | Yield Strength, 0.2% Offset | Elongation |
|---|---|---|---|---|---|
| Seamless pipe and tube | ASTM B167 | Cold-worked or hot-worked annealed, all sizes | ≥550 MPa (80 ksi) | ≥205 MPa (30 ksi) | ≥30% |
| Heat-exchanger tube | ASTM B163 | Annealed | ≥552 MPa (80 ksi) | ≥207 MPa (30 ksi) | ≥30% |
| Welded tube | ASTM B516 | Cold-worked and annealed | ≥550 MPa (80 ksi) | ≥205 MPa (30 ksi) | ≥30% |
Aerospace AMS 5715 deliveries carry condition-specific minimums and added process controls. State the condition at enquiry so the correct standard is quoted.
Inconel 601 vs Inconel 600 Comparison
The choice between Alloy 601 and Alloy 600 usually turns on furnace atmosphere rather than on liquid corrosion. Therefore, the table below sets the two chemistries side by side against the duty each one serves.
| Property / Feature | Inconel 601 (UNS N06601) | Inconel 600 (UNS N06600) |
|---|---|---|
| Governing Standard | ASTM B166 / B167 / B163 / B516 / B168 | ASTM B166 / B167 / B163 / B517 / B516 / B168 |
| Distinguishing Addition | Aluminium 1.0–1.7% | None — nickel-chromium-iron only |
| Chromium Level | 21.0–25.0% | 14.0–17.0% |
| Oxidation Ceiling | Cyclic service to about 1250 °C | Continuous service to about 1093 °C |
| Scale Behaviour | Alumina sub-scale resists spalling under cycling | Chromia scale sheds sooner in cyclic duty |
| Carburizing Resistance | Strong, because the alumina layer slows carbon pickup | Limited in carbon-rich atmospheres |
| Caustic and Chloride Duty | Moderate | Preferred grade for caustic and dry chlorine service |
| Typical Tubular Duty | Furnace tubes, reformer internals, incinerator parts | Caustic evaporators, dry chlorine lines, nuclear tubing |
Physical Properties
| Property | Value |
|---|---|
| Alloy | Inconel 601 |
| UNS | N06601 |
| Werkstoff | 2.4851 |
| Density | Approx. 8.11 g/cm³ |
| Melting Range | Approx. 1360–1411 °C |
| Elastic Modulus | Approx. 206 GPa |
| Thermal Conductivity | Approx. 11.2 W/m·°C at 20 °C |
| Specific Heat | Approx. 450 J/kg·°C |
| Expansion Coefficient | Approx. 13.8 µm/m·°C (20–100 °C) |
| Alloy Type | Nickel-chromium-aluminium |
Standards
| Standard | Product / Application |
|---|---|
| ASTM B167 / ASME SB167 | Seamless pipe and tube, hot-worked and cold-worked |
| ASTM B163 / ASME SB163 | Seamless condenser and heat-exchanger tube |
| ASTM B516 / ASME SB516 | Welded tube, cold-worked and annealed |
| ASTM B829 | General requirements for seamless nickel alloy pipe and tube |
| ASTM B775 / B751 | General requirements for welded nickel alloy pipe and tube |
| SAE AMS 5715 | Bars, forgings, rings, and custom tube |
| DIN 17751 | Nickel alloy tube, W.Nr. 2.4851 |
| ISO 6207 | Nickel alloy seamless tube |
| EN 10095 | Heat-resisting steels and nickel alloys |
| UNS N06601 · W.Nr. 2.4851 · NiCr23Fe · JIS NCF 601 | Designations |
Document texts come from ASTM International. Where equipment falls under pressure-code jurisdiction, the ASME SB edition applies instead.
ASTM B517 covers welded nickel-chromium-iron pipe for UNS N06600 and related grades, but it does not list N06601. Welded Alloy 601 pipe is therefore quoted against B516 tube requirements or the project specification.
Dimensions
| Product Form | Typical Supply Range | Length |
|---|---|---|
| Seamless pipe | NPS 1/8 to NPS 24, SCH 10 to SCH 160 | Single random, double random, or custom |
| Seamless tube | OD 6–101.6 mm, wall 0.5–10 mm | Up to 12 m or custom cut lengths |
| Heat-exchanger tube | OD 6–76.2 mm, wall 0.7–6 mm | Up to 12 m or U-bend |
| Welded tube | OD 3.18–127 mm, wall 0.38–12.7 mm | Coil or fixed length |
| EP / BA tube | OD 6–50.8 mm, wall 0.5–3 mm | Up to 6–12 m, clean service |
| Coil / U-bend tube | OD 6–25.4 mm, wall 0.5–2 mm | Continuous coil or custom U-bend |
Windows outside the listed range follow billet and strip availability. Therefore, give the OD, wall, length, condition, and end finish at enquiry so the route and price can be fixed.
Surface Finishes
| Surface Condition | Typical Characteristics / Applications |
|---|---|
| Annealed & Pickled | Standard delivered condition for fabrication and installation |
| Bright Annealed | Smooth, scale-free bore and OD for instrumentation and clean service |
| Pickled Only | Acid-descaled surface for general industrial piping |
| Beveled End | Weld-preparation beveling to the agreed standard for butt welds |
TECHNICAL DOCUMENTATION
Download Technical Datasheet
Get detailed information including specifications, standards, dimensions and material properties.
HOW TO START
Start Your Order in 6 Simple Steps
A tubular order usually ships two to four weeks after release, though heavy-wall welded product takes longer. Before the price is fixed, the steps below line up standard, condition, and acceptance with your duty.
1
Send the Enquiry
Give the OD, wall, length, quantity, and ordered condition, plus the gas and peak temperature involved.
2
Fix the Standard
Seamless work runs to B167 or B163, while welded tube runs to B516.
3
Confirm the Condition
Annealed tube favours bending and welding, while hot-finished product is chosen for strength.
4
Check the Offer
Price reflects the route, test scope, documentation, and Incoterm you picked.
5
Production and Testing
The plant manufactures and tests to the acceptance level agreed when the order was placed.
6
Shipment
Tubes leave with 3.1 certificates, packing list, and the full export document set.
What Our Clients Say
Feedback from buyers and engineers who source nickel alloy materials from Southerly Alloy.
★★★★★
“Reformer tube stock arrived with the aluminium figure on every certificate, and the annealed condition matched our bending drawings without rework.”
★★★★★
“Carburizing retort tubing held its dimensions through four campaigns, and the heat numbers aligned with our inspection records.”
★★★★★
“The B163 exchanger tube bundle shipped on the promised date, with eddy-current reports attached to the certificate pack.”
CERTIFICATIONS & QUALITY DOCUMENTATION
Certifications & Quality Documentation
Our production and inspection processes are certified to international standards, and every delivery ships with EN 10204 3.1 mill test certificates.
ISO 9001:2015
Quality Management System
PED 2014/68/EU
Pressure Equipment Directive
ASTM / ASME
Material Standards Compliance
EN 10204 3.1
Mill Test Certificates
FAQ
Frequently Asked Questions
Which ASTM standard covers Inconel 601 seamless pipe?
Seamless pipe and tube are ordered to ASTM B167, while condenser and heat-exchanger tube follow B163. Under code jurisdiction the ASME SB editions apply.
What is the maximum temperature for Inconel 601 tubing?
Cyclic oxidation service in air is documented to roughly 1250 °C (2282 °F). However, the design temperature should be confirmed against atmosphere, load, and pressure for each line.
Which welding filler is used for Inconel 601 pipe?
ERNiCr-3 wire to AWS A5.14 pairs with ENiCrFe-3 electrodes to A5.11 for most joints. In addition, preheat is rarely required in shop or field welding.
Can Inconel 601 tube be supplied as coil or U-bends?
Yes. Coils and U-bends come from B163 base stock, formed against your own bending drawings.
What sizes are available for welded Inconel 601 tube?
Welded tube to B516 runs from OD 3.18 mm to 127 mm, with walls from 0.38 mm to 12.7 mm. Larger or heavier sections are quoted on request.
What is your MOQ for Inconel 601 pipe?
One piece covers many stock sizes, so trial lengths and repair pieces carry no premium hurdle.
What are your trade terms for Inconel 601 pipe?
FOB is the default Incoterm, while EXW, CIF, and DAP quotes follow confirmed destinations.
How is Inconel 601 pipe priced?
Pricing follows the ordered size, wall, and condition, and is normally calculated by weight in kilograms. The applicable Incoterm is confirmed on the offer.
What is the lead time for Inconel 601 pipe?
Stock sizes ship in 7-15 days, while made-to-order and heavy-wall tubular product is quoted against the production schedule.
Do you provide EN 10204 3.1 or 3.2 certificates?
Yes. Each delivery carries an EN 10204 3.1 certificate, and third-party 3.2 endorsement can be arranged on request.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Give the OD, wall, length, standard, and quantity at enquiry, and the reply returns price, Incoterm, lead time, and document list. Route and testing questions can travel with the same message.
