Our Inconel 600, 625, and 718 seamless tubes are high-performance nickel-chromium alloys built for high-temperature furnace piping that demands reliability. Inconel 600 (~72% nickel) offers top-notch oxidation resistance, 625 (~61% nickel, molybdenum) excels in corrosion resistance, and 718 (~52% nickel, niobium) delivers unmatched strength. Perfect for furnace tubes, radiant coils, and heat exchangers, these seamless tubes handle temperatures up to 2000°F (1093°C) and resist thermal fatigue. Their seamless design ensures strength, while easy weldability makes them a go-to choice for furnace engineers.
The heat treatment industry is thriving, driven by demand for high-performance materials in aerospace, power generation, and chemical processing. The global furnace equipment market is projected to grow through 2030, fueled by advancements in energy-efficient technologies and stricter performance standards. Inconel 600, 625, and 718 seamless tubes are key players, offering durability and resistance to extreme heat and corrosion in furnace systems. With sustainability trends pushing for materials that reduce maintenance and energy waste, our seamless tubes align perfectly with the industry’s focus on efficiency and eco-friendly solutions.
Item | Inconel 600 | Inconel 601 | Inconel 617 | Inconel 625 | Inconel 690 | Inconel 718 | Inconel X750 | Inconel 825 |
C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
Fe | 6-10 | rest | ≤3 | rest | 7-11 | rest | 5-9 | ≥22 |
P | ≤0.015 | ≤0.02 | ≤0.015 | -- | -- | -- | -- | -- |
S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
Cu | ≤0.5 | ≤1 | -- | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
Ni | ≥72 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
Co | -- | -- | 10-15 | ≤10 | -- | ≤1 | ≤1 | -- |
Al | -- | 1-1.7 | 0.8-1.5 | ≤0.8 | -- | 0.2-0.8 | 0.4-1 | ≤0.2 |
Ti | -- | -- | ≤0.6 | ≤1.15 | -- | -- | 2.25-2.75 | 0.6-1.2 |
Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
Nb+Ta | -- | -- | -- | 4.75-5.5 | -- | 4.75-5.5 | 0.7-1.2 | -- |
Mo | -- | -- | 8-10 | 2.8-3.3 | -- | 2.8-3.3 | -- | 2.5-3.5 |
B | -- | -- | ≤0.006 | -- | -- | -- | -- | -- |
Shape | Size (mm) |
Wire | 0.02-7.50 |
Rod/Bar | 8.0-200 |
Strip | (0.5-2.5)*(5-180) |
Tube/Pipe | Customized |
Sheet/Plate | Customized |
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Our Inconel seamless tubes perform in demanding applications:
Heat Treatment Furnaces: Used in radiant tubes, coils, and piping, resisting oxidation and thermal cycling.
Aerospace: Supports jet engine exhaust systems and heat shields, handling high temperatures.
Chemical Processing: Powers piping and heat exchangers exposed to corrosive gases and high heat.
Power Generation: Enhances boiler tubes and superheater systems for reliable energy production.
Petrochemical Industry: Used in high-temperature piping for refineries, resisting corrosion and stress.
Their strength and oxidation resistance make them ideal for high-temperature furnace piping.
Comparison Table: Inconel 600, 625, 718 vs. Other Nickel-Based Alloy
Parameter | Inconel 600 | Inconel 625 | Inconel 718 | Hastelloy C-276 |
|---|---|---|---|---|
Nickel Content | ~72% | ~61% | ~52% | ~57% |
Chromium Content | ~14-17% | ~21-23% | ~19% | ~16% |
Key Additives | Iron | Molybdenum, Niobium | Niobium, Titanium | Molybdenum |
Operating Temp Range | -200°F to 2000°F (-129°C to 1093°C) | -423°F to 1800°F (-253°C to 982°C) | -423°F to 1300°F (-253°C to 704°C) | -200°F to 1900°F (-129°C to 1038°C) |
Oxidation Resistance | Excellent | Very good | Excellent | Good |
Corrosion Resistance | Good in reducing environments | Excellent in seawater and acids | Very good in mixed environments | Superior in harsh acids |
Tensile Strength | ~93 ksi | ~120 ksi | ~185 ksi | ~100 ksi |
Key Applications | Furnace piping, chemical processing | Offshore equipment, furnace piping | Turbine components, furnace piping | Chemical processing, pollution control |
Our Inconel 600, 625, and 718 seamless tubes set the standard for furnace applications. We produce tubes that meet stringent ASTM B163, B444, B637, and AMS standards, ensuring top-tier quality for your piping systems. Unlike others, we offer customized solutions—specific diameters, wall thicknesses, and lengths tailored to your furnace designs. Our global supply chain guarantees consistent availability, and our DFARS-compliant products are perfect for aerospace and defense projects. Every batch is rigorously tested for tensile strength, oxidation resistance, and creep performance, so you get tubes that last. Our 24/7 support team is ready to tackle your project challenges, making us the partner you can trust.
Why Our Inconel 600, 625, 718 Seamless Tubes are the Best Choice
Our Inconel 600, 625, and 718 seamless tubes are built for high-temperature furnace piping that demands durability and performance. Their superior oxidation resistance, strength, and corrosion resistance ensure your piping systems thrive in the toughest conditions. With the heat treatment industry prioritizing efficiency and sustainability, our tubes deliver long-term value by reducing maintenance and downtime. Ready to boost your furnace performance? Contact us for a quote today and see how our Inconel seamless tubes can transform your operations.
About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs:
What are Inconel 600, 625, and 718 seamless tubes made of?
Inconel 600: ~72% nickel, ~14-17% chromium. Inconel 625: ~61% nickel, ~21-23% chromium, ~9% molybdenum. Inconel 718: ~52% nickel, ~19% chromium, niobium, and titanium.Why are these Inconel seamless tubes ideal for furnace piping?
They offer excellent oxidation resistance, high strength, and durability at extreme temperatures, perfect for furnace piping in harsh conditions.What temperatures can these Inconel seamless tubes handle?
Inconel 600: up to 2000°F (1093°C). Inconel 625: -423°F to 1800°F (-253°C to 982°C). Inconel 718: -423°F to 1300°F (-253°C to 704°C).What industries use these Inconel seamless tubes?
Heat treatment, aerospace, chemical processing, power generation, and petrochemical industries rely on them for high-temperature piping.How do these Inconel seamless tubes compare to each other?
Inconel 600 excels in oxidation resistance, 625 in corrosion resistance, and 718 in high strength and creep resistance at elevated temperatures.Are these Inconel seamless tubes weldable?
Yes, all are weldable using standard techniques like TIG or MIG, making them versatile for furnace piping fabrication.What are the mechanical properties of these Inconel seamless tubes?
Inconel 600: ~93 ksi tensile strength. Inconel 625: ~120 ksi. Inconel 718: ~185 ksi, all with excellent durability and creep resistance.How do these Inconel seamless tubes support sustainability?
Their durability in high-temperature environments reduces maintenance and replacements, lowering costs and environmental impact in furnace operations.