Comparison of Inconel 600 alloy flange and Alloy 625 flange
Inconel 600 flanges are an economical option for high-temperature applications, but Inconel 625 flanges offer superior performance, higher strength, and enhanced corrosion resistance, especially in harsh marine environments. Due to its more complex composition, including elements such as molybdenum, niobium, and tantalum, the 625 alloy is more expensive.
Are Nickel Alloy 600 and Inconel 600 the same alloy?
Nickel Alloy 600, also sold under the brand name Inconel 600, is a unique nickel-chromium alloy known for its oxidation resistance at high temperatures. It has a wide range of applications, suitable for high-temperature applications from low temperatures up to 2000°F (1093°C).
What is an Inconel 600 flange?
Inconel 600 flanges are made of a nickel-chromium alloy, offering exceptional oxidation and corrosion resistance even under extreme conditions. This alloy, composed of approximately 72% nickel and 14-17% chromium, provides superior strength, durability, and stability over a wide temperature range, from low to extremely high temperatures. These flanges possess excellent mechanical properties, withstand pressure and thermal stress, and are suitable for industries such as chemical, marine, aerospace, and power generation. They resist chloride stress corrosion and corrosion from other organic and inorganic compounds, making them highly reliable even in harsh environments.
What is an Inconel 625 flange?
Inconel 625 flanges are made of a nickel-chromium alloy containing approximately 58% nickel and 20% chromium, with trace amounts of carbon, manganese, silicon, sulfur, copper, and iron. This composition gives it good strength, corrosion resistance, and high-temperature resistance. Gnee Steel manufactures and supplies various types, sizes, and specifications of Inconel 625 flanges for a wide range of industrial applications. These flanges have a tensile strength of 930 MPa, a minimum yield strength of 517 MPa, and a melting point of 1350°C. They are widely used in fields with high requirements for pressure, temperature, and corrosion resistance, such as the aerospace, shipbuilding, chemical, and power industries.
Inconel 600 / 625 Pipe Flanges Specification
| Standards | ASTM, ASME |
| Designation | B564, SB564 |
| Dimension Standard | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standards | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Size | 1/2" (15 NB) to 48" (1200NB) |
| Class | Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Alloy 600 / 625 Pipe Flanges Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Inconel 600 | N06600 | 2.4816 | NC15FE11M | NiCr15Fe | NCF 600 | NA 13 | МНЖМц 28-2,5-1,5 |
| Inconel 625 | N06625 | 2.4856 | NC22DNB4M | NiCr22Mo9Nb | NCF 625 | NA 21 | ХН75МБТЮ |
Inconel 600 / 625 Flanges Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| 600 | 0.15 | 1.00 | 0.50 | 0.015 | 0.50 | 6.00 - 10.0 | 72.00 | 14.00 - 17.00 |
| 625 | 0.10 | 0.50 | 0.50 | 0.015 | - | 5.0 | - | 58.0 min |
Inconel 600 / 625 Flanges Mechanical Properties
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi - 45,000 , MPa - 310 | Psi - 95,000 , MPa -655 | 40 % |
| 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi - 75,000 , MPa - 517 | Psi - 1,35,000 , MPa -930 | 42.5 % |
Other Types of Inconel 600 / 625 Flanges
| Inconel 600 Series | Inconel 625 Series |
|---|---|
| Inconel 600 Flanges | 625 Inconel Alloy Flanges Stockholder in India |
| UNS N06600 Flanges | Inconel 625 Slip on Flanges |
| Inconel Alloy 600 Pipe Flanges | Inconel N06625 Long Weld Neck Flanges |
| 2.4856 Plate Flanges | Inconel Alloy 625 Orifice Flanges |
| ANSI B16.5 Inconel 600 Flange | Inconel 625 Flanges Supplier in Mumbai |
| Inconel Alloy 600 Welding Neck Flanges | Alloy 625 Flanges Manufacturer in India |
| Inconel Alloy 600 Forged Flanges | Inconel Alloy 625 RTJ Flanges |
| Alloy 600 Socket weld Flanges Stockist | Inconel 625 Spectacle Blind Flanges |
| Inconel 600 Lap Joint Flanges | Inconel Alloy 625 Pipe Flange Stockist in Mumbai, India |
| Inconel 2.4816 Blind Flanges | ASME SB564 Alloy 625 Threaded Flanges |
| Inconel Alloy 600 Ring Type Joint Flanges | Inconel 625 Reducing Flanges |
| Inconel Alloy 600 Square Flanges | |
| Nickel Alloy 600 Flat Flanges | |
| Inconel 600 Plate Flanges | |
| Inconel Alloy 600 SORF Flanges |
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
Comparison of Inconel 600 Flange and Inconel 625 Flanges
| Feature | Inconel 600 | Inconel 625 |
|---|---|---|
| Key Alloys | Nickel-chromium-iron | Nickel-chromium-molybdenum-niobium |
| Corrosion Resistance | Good resistance | Superior resistance, especially to pitting, crevice, and chloride stress corrosion cracking |
| Strength | Good strength and workability | Higher strength due to molybdenum and niobium addition |
| High-Temperature Performance | Excellent for high-temperature applications | Excellent for high-temperature and high-pressure applications |
| Cost | More economical | More expensive due to complex composition |
| Typical Applications | Chemical processing, petrochemical processing, and general high-temperature use | Harsh marine environments, aerospace components, chemical processing, and heat treatment equipment |
Gnee Steel is a supplier of Inconel 600 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 600 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 600, 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.
