What is the difference between an Inconel 600 flange and an Inconel 601 flange?
What is the difference between an Inconel 600 flange and an Inconel 601 flange?
The main difference lies in their aluminum content. Inconel 601 exhibits higher oxidation resistance at high temperatures, while Inconel 600, with its higher nickel content, provides excellent corrosion resistance and high strength. Inconel 601 is commonly used in high-temperature environments, especially those containing sulfur, while Inconel 600 is more resistant to stress corrosion cracking in chloride environments.
What are the applications of Inconel 601 alloy?
In industrial furnaces, this alloy is used to manufacture radiant tubes, furnace chambers, rotary kilns, flame shields, annealing tubes, woven conveyor belts, chain curtains, burner nozzles, and resistance heating elements.
Specification of Inconel 600/ 601 Flanges
| Specification | ASTM B564 / ASME SB564 |
| Dimension Standard | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673. |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
Equivalent Grades of Inconel 600/ 601 Flanges
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | GOST | OR | BS | JIS | EN |
| Inconel 600 | N06600 | 2.4816 | NC15FE11M | МНЖМц 28-2,5-1,5 | ЭИ868 | NA 13 | NCF 600 | NiCr15Fe |
| Inconel 601 | N06601 | 2.4851 | NC23FeA | XH60BT | ЭИ868 | NA 49 | NCF 601 | NiCr23Fe |
Chemical Composition of Inconel 600/ 601 Flanges
| Grade | Ni | Fe | C | Mn | Si | Cu | Cr | S | Mo | Co | Al | Ti | Nb |
| 600 | 72.0 min | 6.0 - 10.0 | 0.15 max | 1.0 max | 0.5 max | 0.5 max | 14.0 - 17.0 | 0.015 max | - | - | - | - | - |
| 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 | - | - |
Mechanical Properties of Inconel 600/ 601 Flanges
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
| 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
Dimensions Standard Of Inconel 600/ 601 Flanges
| Nominal Size | Outside Diameter (OD) |
Min. Thickness (T) |
RF Dia. (R) |
No. of Bolt Holes | Diameter of Holes | Bolt Circle (BC) |
SO Bore ID (SB) |
WN Bore ID (WB) |
Dia. Hub Base (HB) |
Dia. of Hub Top (HT) |
SO LTH (SL) |
WN LTH (WL) |
| 1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
| 3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
| 1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
| 11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
| 11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
| 2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
| 21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
| 3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
| 31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
| 4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
| 5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
| 6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
| 8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
Application Of Inconel 600/ 601 Flanges
We ensure that all our products are made from high-quality raw materials. Each product undergoes rigorous testing before being shipped to our customers.
Petrochemical Industry
Power Generation Industry
Food Processing Industry
Oil & Gas Industry
Sugar Industry
Packing Of Inconel 600/ 601 Flanges
We employ the safest and most efficient packaging methods suitable for all types of cargo transportation. Our packaging options are diverse, including:
Wooden Crates
Wooden Pallets
Shrink Film Packaging
Cartons
Wooden Crates
Testing Of Inconel 600/ 601 Flanges
We are renowned for our precise dimensions. All products undergo comprehensive testing before shipment. We perform destructive and non-destructive testing on all our products.
Eddy current testing
Hydraulic pressure analysis
Pitting corrosion protection testing
Power generation industry
Materials certification
| Feature | Higher Nickel | Higher Aluminum |
|---|---|---|
| Key Addition | Higher Nickel | Higher Aluminum |
| Primary Advantage | Excellent resistance to chloride-induced stress corrosion cracking and good high-temperature strength | Excellent resistance to high-temperature oxidation and scaling |
| High-Temperature Applications | Suitable for a variety of high-temperature and corrosive environments | Ideal for high-temperature applications, especially those with sulfur-containing atmospheres |
| Corrosion Resistance | Very good resistance to general corrosion and oxidation | Excellent oxidation resistance in high-temperature industrial environments |
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 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.
