ASTM B163 UNS N06601 Heat Exchanger Tubes
Sizes: 1/8" - 3" OD
OD: 3.00 - 76.20 mm
Thickness: 0.50 - 3.76 mm
Lengths: Single, double, random, and cut-to-length
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of ASTM B163 UNS N06601 Heat Exchanger Tubes in China. If you're going to wholesale high quality ASTM B163 UNS N06601 Heat Exchanger Tubes made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Inconel 601(UNS N06601)Heat Exchanger Tubes Description
Inconel 601 heat exchanger tubing is a nickel‑chromium‑iron‑aluminum seamless tube specially manufactured for shell‑and‑tube heat exchanger and condenser service. The alloy grade Inconel 601 (UNS N06601, W.Nr.2.4851) contains 58‑63% Ni,21‑25% Cr and 1.0‑1.7% Al. Aluminum promotes dense adherent Al₂O₃ oxide scale, delivering outstanding cyclic high‑temperature oxidation & carburization resistance up to 1150°C, critical for heat‑exchanger suffering repeated heating‑cooling cycles.
B163 Standard Size Scope: Seamless heat‑exchanger tube outer diameter: 3.00 mm ~76.2 mm (max 3‑inch per ASTM B163‑22); wall thickness range:0.5 mm ~ 3.76 mm (minimum wall as defined in B163). Two tolerance options available: average wall tolerance or minimum‑wall tolerance for heat‑exchanger design.
Compliant to ASTM B163 / ASME SB163 (seamless heat‑exchanger & condenser tube specification). For larger‑diameter process piping beyond B163 scope, refer to ASTM B167 UNS N06601 general seamless pipe.
International Grade Equivalents for Inconel 601 Heat Exchanger Pipe
| Standard / Region | Grade Designation |
|---|---|
| US Standard | Inconel 601 / UNS N06601 |
| European Standard | W.Nr 2.4851 / NiCr23Fe |
| Japanese Standard | NCF601 |
Note: Among cross‑reference grades, only seamless tubes manufactured under ASTM B163 specification qualify for heat‑exchanger / condenser bundle service, grade equivalence alone is insufficient for engineering acceptance.
Standards for Inconel 601 Heat Exchanger Pipe
| Product / Application | Applicable Standard |
|---|---|
| Seamless Heat‑Exchanger & Condenser Tube(this product) | ASTM B163 / ASME SB163 |
| General large‑diameter seamless process pipe (beyond B163 OD limit) | ASTM B167 / ASME SB167 |
| Welded nickel alloy tube (not for this B163 series) | ASTM B517 |
| Process piping system code reference | ASME B31.3 Process Piping |
ASTM B163‑22 current revision; B163 covers seamless tube OD ≤76.2 mm for heat‑exchanger bundle application only.
Chemical Composition of Inconel 601 Heat Exchanger Tubes
| Alloy Elements | ASTM Standard Range(wt%) | Export Tube Locked Range(wt%) | Engineering Practical Explanation |
|---|---|---|---|
| Ni | 58.0~63.0 | 59.0~62.0 | Stabilize matrix under frequent thermal cycling for heat‑exchanger bundles, sustain high‑temperature creep resistance |
| Cr | 21.0~25.0 | 22.0~24.0 | Form Cr‑rich protective layer against flue‑gas corrosion inside heat‑exchanger |
| Al | 1.0~1.7 | 1.2~1.6 | Critical for B163 heat‑exchanger tube: improve oxide‑film adhesion, resist spalling under repeated heating‑cooling; spalled oxide particles cause heat‑exchanger tube‑sheet blockage |
| Fe | Balance | 13.0~18.0 | Maintain tube ductility; prevent brittle crack under heat‑exchanger thermal alternating stress |
| C | ≤0.10 | ≤0.06 | Low‑carbon design to mitigate inter‑granular corrosion after tube‑sheet welding in heat‑exchanger assembly |
| S / P | ≤0.015 | ≤0.008 | Strict impurity control; avoid micro‑crack during tube expanding & tube‑sheet welding for heat‑exchanger bundle |
Inconel 601 Heat Exchanger Tubes Property Data
Inconel 601 Pipe: Standard Mechanical and Pressure-Rating Parameters
| Test Condition | Tensile Strength | Yield Strength(0.2%) | Elongation | Tube Service Value |
|---|---|---|---|---|
| Room Temperature Annealed | ≥655MPa | ≥240MPa | ≥30% | Sufficient ductility for heat‑exchanger tube expanding, tube‑sheet welding and light bending |
| 900℃ High Temperature State | ≥320MPa | ≥120MPa | ≥35% | Maintain mechanical stability for long‑term cyclic‑operation high‑temperature heat‑exchanger bundles |
Key Advantages of Inconel 601 Tubing
- Ultra‑Strong Cyclic Oxidation Resistance for Heat‑Exchanger Bundle: Continuous oxidation‑resistant up to 1100℃. The adherent Al‑rich oxide scale avoids spalling under thousands of thermal cycles. Spalled oxide debris is a common root‑cause of heat‑exchanger tube‑sheet blockage and medium channel fouling; UNS N06601 B163 tube solves this typical failure mode.
- Excellent Thermal‑Fatigue Resistance for Shell‑Tube Heat‑Exchanger: Resist cracking & deformation under alternating hot‑cold load. Extend service life for furnace waste‑heat recovery heat‑exchanger bundles.
- Complex Flue‑Gas & Medium Compatibility: Resist high‑temperature flue‑gas, weak acid/alkali condensate corrosion, suitable for waste‑incineration, desulfurization‑denitrification heat‑recovery heat‑exchanger working condition.
- Physical Parameters for Heat‑Transfer Design: Density 8.11g/cm³, melting point1370‑1400℃, non‑magnetic, well‑balanced thermal conductivity. Critical input parameter for heat‑exchanger thermal calculation & shell‑tube thermal‑stress simulation.
Click to download the Inconel 601 PDF datasheet
Export Specifications for Inconel 601 Tubing
| Parameter | Specification(ASTM B163 UNS N06601 Heat‑Exchanger Tube) |
|---|---|
| Outer Diameter Range | 3.0 mm ~76.2 mm (max 3‑inch per B163‑22 standard);precision small‑size for shell‑tube heat‑exchanger bundle |
| Wall Thickness Range | 0.5 mm‑3.76 mm;support average wall tolerance / minimum‑wall tolerance (two B163 tolerance options for heat‑exchanger mechanical design) |
| Manufacturing Process | Seamless, cold‑drawn finishing (B163 heat‑exchanger tube); controlled inner‑outer surface; low‑defect surface to avoid local corrosion initiation; ready for tube expanding & tube‑sheet welding |
| Delivery Condition | Solution annealed; pickled bright surface; residual‑stress controlled for heat‑exchanger tube expanding process |
Contact us to customize Inconel 601 products to your project's dimensions
Export Applications for High-Precision Inconel 601 Tubing
| Industry / Application Area | Specific Applications / Key Features |
|---|---|
| High‑Temperature Shell‑Tube Heat‑Exchanger System | Heat‑exchange bundle tubes, condenser tubes, flue‑gas waste‑heat recovery tubes; resist thermal‑cycle fatigue, prevent oxide spalling & channel fouling |
| Thermal‑Processing Furnace Auxiliary Heat‑Recovery | Furnace waste‑heat recovery heat‑exchanger bundle, annealing furnace cooling tube bundle under carburizing / carbonitriding atmosphere |
| Waste‑to‑Energy & Environmental‑Protection Equipment | Waste incineration high‑temperature heat‑recovery tube bundles; desulfurization & denitrification flue‑gas condenser tubes |
| Solar‑Thermal Power Heat‑Transfer Circuit | High‑temperature heat‑exchanger tube for concentrated solar thermal system |
Gnee Alloy inconel 601 Inspection and Production Equipment
For ASTM B163 heat‑exchanger tubes, mandatory inspection items include: full‑length hydrostatic test OR full‑body eddy‑current test (per ASTM B163 requirement), flattening test, flaring test for tube expandability, PMI positive material identification, dimensional tolerance check for OD/wall(min‑wall option available).
These tests guarantee tube quality before heat‑exchanger tube‑sheet expanding & welding assembly.
Left: Eddy Current Testing (ECT) | Right: Hydrostatic Testing
Gnee Alloy Inconel 601 Pipe: Global Regional Export Compliance and Solutions
Based on 18 years of experience in cross-border pipe exports, the key areas of focus for Inconel 601 heat exchanger tubing vary by region:
High-end thermal engineering projects in Europe and the Americas: Strict compliance with ASTM B163/B167 standards is mandatory; requirements include high-temperature cyclic oxidation test reports, full-length ultrasonic testing (UT) reports, and TÜV 3.2 third-party certification.For heat‑exchanger bundle projects, B163 mandatory; require flattening/flaring test report to validate tube expandability besides UT / cyclic oxidation report.
Middle‑East energy heat‑exchanger tender：focus on thermal‑fatigue performance, require min‑wall tolerance certificate if heat‑exchanger design adopts minimum‑wall formula.
Russian and Central Asian markets: Equivalent grades (such as W.Nr 2.4851) are accepted; support is provided for the registration of pipe dimension standards and batch quality traceability.
Industrial support markets in Southeast Asia: Standard seamless pipes are available from stock for rapid delivery, suitable for conventional heat exchanger and boiler projects.
Gnee Alloy Inconel 601 Pipe certificate
About Gnee Alloy
Provide the following key pipe specifications to receive an accurate quote and comprehensive engineering compliance documentation:
1. Pipe Specifications: Outer Diameter × Wall Thickness × Length, Quantity, Surface Finish Requirements
2. Standards: ASTM B163 (Heat Exchanger Tubing) / ASTM B167 (General Piping)
3. Operating Conditions: Long-term Operating Temperature, Cycling Frequency, Media/Environment
4. Certification Requirements: EN10204 3.1 / 3.2 Third-Party Inspection Certificates
5. Processing Requirements: Cut-to-Length, End Flattening, Pipe Bending
Dedicated Export Services: Free material selection guidance for thermal applications, free sample testing, full-process quality traceability, and one-stop support for export customs documentation.
6. Heat‑Exchanger Bundle Specific Requirement: average‑wall or minimum‑wall tolerance; tube expandability requirement; tube‑sheet welding condition; required test: eddy‑current / hydrostatic / flattening / flaring test.
FAQ
Q1: Why choose 601 round tube for heat exchanger instead of 600 tube? A: Inconel 600 focuses on static corrosion resistance, while 601 tube adds aluminum element strengthening, with far stronger high-temperature cyclic oxidation and thermal fatigue resistance. It is the only cost-effective choice for heat exchange equipment with frequent temperature alternation.
Q2: What is the maximum sustainable working temperature of 601 seamless round tube? A: It can work stably at 1100℃ for a long time, and maintain excellent structural stability and oxidation resistance under repeated heating and cooling cycle conditions.
Q3: Are 601 heat exchanger tube suitable for pressure pipeline construction? A: Stable long‑term service up to 1100 °C under clean oxidizing flue‑gas; maintain scale integrity under repeated heat‑cool cycles. Note: when sulfur‑bearing flue‑gas exists, additional material assessment shall be conducted.
Q4: Can ASTM B163 UNS N06601 tubes be used for shell‑tube heat‑exchanger pressure‑bundle construction? A: Suitable for heat‑exchanger bundle pressure service within B163 size scope. Each tube passes mandatory hydrostatic or eddy‑current non‑destructive test according ASTM B163; meets ASME B31.3 process piping code for heat‑exchanger assembly. Minimum‑wall tolerance certification is available for pressure‑code calculation.
Q5: What is the delivery cycle of seamless round tubes? A: Conventional standard spot tubes: 7-15 working days; customized special diameter and wall thickness tubes: 18-28 working days, supporting urgent thermal equipment project priority delivery.For heat‑exchanger bundle tender, flattening / flaring test reports can be additionally provided upon request.
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