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The UNS N06601/DIN W.NR. 2.4851 Seamless Pipe is a premium solution engineered for extreme high-temperature applications, offering superior oxidation and carburization resistance. Constructed from nickel-chromium alloy with added cobalt and aluminum, this pipe ensures reliable performance in harsh thermal environments, ideal for industrial furnaces, heat treatment systems, and petrochemical processing.
Material Excellence:
Composition: Ni (60-63%), Cr (21-25%), Co (max 1.5%), Al (1.0-1.7%), providing outstanding resistance to cyclic heating (up to 1200°C) and molten salt corrosion (e.g., nitrate baths).
Mechanical properties: Tensile strength ≥650 MPa (annealed), yield strength ≥270 MPa, elongation ≥30%, with low thermal expansion (14.2 μm/m°C) for dimensional stability in thermal cycles.
Corrosion Resistance:
Oxidation resistance: Forms dense Cr₂O₃ scale above 800°C, exceeding ISO 6272 salt spray test (1000 hours) and resisting sulfurous atmospheres (H₂S ≤100ppm).
Carburization resistance: Aluminum content inhibits carbide formation, critical for furnace components exposed to carburizing gases (CO/CH₄ mixtures).
Manufacturing Standards:
Production: Cold-drawn/hot-rolled seamless process (ASTM B167, ASME SB-167), wall thickness 2-20mm, outer diameter 10-300mm, with dimensional tolerance ±1% (OD) and ±5% (wall thickness).
Testing: 100% ultrasonic testing (UT) and eddy current testing (ECT), with mill certificates including chemical analysis and mechanical properties.
Industrial Furnaces: Used for radiant tubes, muffles, and heat exchangers in annealing furnaces (900-1150°C), reducing downtime from oxidation-related failures by 40%.
Petrochemical Processing: Transports hot gases and molten salts in ethylene crackers and reformers, resisting high-temperature sulfidation (H₂S + steam environments).
Heat Treatment Systems: Supports carburizing and nitriding processes, maintaining structural integrity in ammonia-rich atmospheres (NH₃ ≤20%).
Energy Recovery: Used in waste-to-energy boilers for flue gas pipelines, enduring ash corrosion (alkali metal content ≤50ppm).
Temperature Leadership: Certified for continuous use up to 1200°C, 100°C higher than common nickel alloys, ideal for next-generation high-temperature processes.
Custom Solutions: Offer custom lengths (up to 12m) and surface treatments (aluminized coating) for specialized furnace designs, with 3-week lead time for non-standard sizes.
Global Compliance: Compliant with ASME BPVC Section II, EN 10216-5, and NACE MR0175, ensuring suitability for global industrial projects.
Testing Rigor: In-house high-temperature creep testing (1000°C, 10,000 hours) guarantees 20% longer service life than generic alloys in cyclic heating applications.
Chemical Composition | |||||||||
% | Ni | Cr | C | Mn | Fe | Si | Cu | Al | S |
MIN | 58.00 | 21.00 | BALANCE | 1.00 | |||||
MAX | 63.00 | 25.00 | 0.10 | 1.00 | 0.50 | 1.00 | 1.70 | 0.02 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 167, B 829 | DENSITY | 8.11g/cm3 | MELTING RANGE | 1360-1411℃ |
Specifications Of UNS N06601/DIN W. NR. 2.4851 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
The UNS N06601/DIN W.NR. 2.4851 Seamless Pipe is a premium solution engineered for extreme high-temperature applications, offering superior oxidation and carburization resistance. Constructed from nickel-chromium alloy with added cobalt and aluminum, this pipe ensures reliable performance in harsh thermal environments, ideal for industrial furnaces, heat treatment systems, and petrochemical processing.
Material Excellence:
Composition: Ni (60-63%), Cr (21-25%), Co (max 1.5%), Al (1.0-1.7%), providing outstanding resistance to cyclic heating (up to 1200°C) and molten salt corrosion (e.g., nitrate baths).
Mechanical properties: Tensile strength ≥650 MPa (annealed), yield strength ≥270 MPa, elongation ≥30%, with low thermal expansion (14.2 μm/m°C) for dimensional stability in thermal cycles.
Corrosion Resistance:
Oxidation resistance: Forms dense Cr₂O₃ scale above 800°C, exceeding ISO 6272 salt spray test (1000 hours) and resisting sulfurous atmospheres (H₂S ≤100ppm).
Carburization resistance: Aluminum content inhibits carbide formation, critical for furnace components exposed to carburizing gases (CO/CH₄ mixtures).
Manufacturing Standards:
Production: Cold-drawn/hot-rolled seamless process (ASTM B167, ASME SB-167), wall thickness 2-20mm, outer diameter 10-300mm, with dimensional tolerance ±1% (OD) and ±5% (wall thickness).
Testing: 100% ultrasonic testing (UT) and eddy current testing (ECT), with mill certificates including chemical analysis and mechanical properties.
Industrial Furnaces: Used for radiant tubes, muffles, and heat exchangers in annealing furnaces (900-1150°C), reducing downtime from oxidation-related failures by 40%.
Petrochemical Processing: Transports hot gases and molten salts in ethylene crackers and reformers, resisting high-temperature sulfidation (H₂S + steam environments).
Heat Treatment Systems: Supports carburizing and nitriding processes, maintaining structural integrity in ammonia-rich atmospheres (NH₃ ≤20%).
Energy Recovery: Used in waste-to-energy boilers for flue gas pipelines, enduring ash corrosion (alkali metal content ≤50ppm).
Temperature Leadership: Certified for continuous use up to 1200°C, 100°C higher than common nickel alloys, ideal for next-generation high-temperature processes.
Custom Solutions: Offer custom lengths (up to 12m) and surface treatments (aluminized coating) for specialized furnace designs, with 3-week lead time for non-standard sizes.
Global Compliance: Compliant with ASME BPVC Section II, EN 10216-5, and NACE MR0175, ensuring suitability for global industrial projects.
Testing Rigor: In-house high-temperature creep testing (1000°C, 10,000 hours) guarantees 20% longer service life than generic alloys in cyclic heating applications.
Chemical Composition | |||||||||
% | Ni | Cr | C | Mn | Fe | Si | Cu | Al | S |
MIN | 58.00 | 21.00 | BALANCE | 1.00 | |||||
MAX | 63.00 | 25.00 | 0.10 | 1.00 | 0.50 | 1.00 | 1.70 | 0.02 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 167, B 829 | DENSITY | 8.11g/cm3 | MELTING RANGE | 1360-1411℃ |
Specifications Of UNS N06601/DIN W. NR. 2.4851 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
