The difference between Inconel 601 and Inconel 718 round bars
The difference between Inconel 601 and Inconel 718 round bars
Inconel 601 bars, due to their aluminum content, exhibit excellent high-temperature oxidation resistance, making them ideal for furnace components; Inconel 718 alloy bars, containing niobium and titanium, possess superior strength and toughness at high temperatures, making them an ideal material for jet engines. 718 can be precipitation hardened to achieve even higher strength, while the main advantage of 601 round bars lies in their oxidation and carburization resistance. The key difference between the two is that 601 bars are known for their excellent oxidation resistance (e.g., forming a protective oxide layer), while 718 bars are renowned for their superior mechanical strength (ability to withstand loads).
What are the uses of Inconel 601?
The properties of INCONEL 601 alloy make it widely used in heat treatment, chemical processing, pollution control, aerospace, and power generation. 601 alloy is a commonly used structural material in various heat treatment equipment.
Inconel 601 rod is a bar-shaped profile made from a nickel-chromium-iron-aluminum reinforced alloy (Inconel 601). Its core characteristic is its unparalleled resistance to oxidation, carburization, and high-temperature sulfur corrosion at extreme temperatures up to approximately 1250°C, while maintaining good high-temperature strength and machinability. It is primarily used in the manufacture and processing of critical components that require long-term exposure to severe oxidizing-reducing atmospheres and thermal cycling, such as high-temperature heat treatment furnace components, industrial combustion systems, petrochemical cracking units, and aerospace hot-end components. It is a high-performance raw material specifically designed for ultra-high temperature environments.
Inconel 718 rod is a bar-shaped profile made from a precipitation-hardened nickel-chromium-based high-temperature alloy (Inconel 718). Its core characteristic is precipitation hardening achieved through elements such as niobium and molybdenum, providing ultra-high strength and excellent creep and fatigue resistance at temperatures up to approximately 700°C. It is primarily used in the manufacture of critical structural components subjected to extreme stress and high temperatures, such as aircraft engine turbine disks, high-strength fasteners, oil drilling tools, racing car transmission components, and high-performance molds. It is a top-tier raw material for aerospace, energy, and high-end manufacturing industries with stringent requirements for material mechanical properties and high-temperature stability.
601/718 Inconel Round Bar Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | GOST | OR | BS | JIS | EN |
|---|---|---|---|---|---|---|---|---|
| Inconel 601 | N06601 | 2.4851 | NC23FeA | XH60BT | ЭИ868 | NA 49 | NCF 601 | NiCr23Fe |
| Inconel 718 | N07718 | 2.4668 | - | - | - | - | NCF 718 | - |
Specification of Inconel 600/601/625/718 Round Bar
Inconel Round Bar Specification : ASTM B166, ASME SB166
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
Chemical Composition of Inconel 601/718 Round Bar
| Grade | Ni | Fe | C | Mn | Si | Cu | Cr | S | Mo | Co | Al | Ti | Nb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 601 | 58.0 – 63.0 | Balance | 0.10 max | 1.0 max | 0.50 max | 1.0 max | 21.0 – 25.0 | 0.015 max | 8.0-10.0 | - | 1.0 – 1.7 | - | - |
| 718 | 50 - 55 | - | 0.08 max | 0.35 max | 0.35 max | 0.3 max | 17 - 21 | .015 max | 2.8 - 3.3 | 1.0 max | - | - | - |
Our Inconel 601/718 round bars are widely used in various industries and fields. The following are some examples of application areas:
Petrochemical industry
Oil and gas industry
Chemical industry
Power plant industry
Energy industry
Pharmaceutical industry
Pulp and paper industry
Food processing industry
Aerospace industry
Refining industry
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel is a supplier of inconel 601 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with inconel 601 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells inconel 601, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
