Hastelloy C22 Buttweld Fittings
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Hastelloy C22 Buttweld Fittings are a type of pipe fittings made from a high-performance nickel-based alloy called Hastelloy C22. This alloy is known for its exceptional resistance to corrosion, particularly in highly aggressive environments like those found in chemical processing, petrochemical, and waste treatment industries.
Hastelloy C22 contains chromium, molybdenum, and tungsten, which contribute to its superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. These fittings are commonly used to connect pipes or tubes in high-temperature and high-pressure applications where standard materials might fail.
Hastelloy Alloy C22 Butt weld Pipe Fittings Specification :
| Standard | ASME / ANSI B16.9, ASME / ANSI B16.11, ASME / ANSI B16.28, ASME B16.5, MSS SP-43, GB12459, GB/T13401, GB/T14383, SH3406, SH3408, SH3409 etc. |
| Designation | ASTM / ASME B 366 / SB 366 |
| Size | Seamless 1/2" - 10" , Welded 1/2" - 48" |
| Schedule | Sch 5 TO Sch XXS. |
| Grade | Hastelloy C22 Buttweld Fittings(UNS N06022), 2.4602 |
| Wall Thickness | from 2 to 40 mm. |
| Type | Seamless / Welded |
HASTELLOY C22 BUTTWELD FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| Hastelloy C22 | N06022 | 2.4602 | - | NiCr21Mo14W | NW 6022 | - | - |
CHEMICAL COMPOSITION OF HASTELLOY ALLOY C22 BUTTWELD FITTINGS
| Grade | C | Mo | Mn | Si | Fe | P | S | Co | Cr | W | V | Ni |
| C22 | 0.010 | 12.5 – 14.5 | 0.50 | 0.08 | 2.00 – 6.00 | 0.02 | 0.02 | 2.5 | 20 – 22.5 | 2.5 – 3.5 | 0.35 | Bal |
MECHANICAL PROPERTIES OF HASTELLOY ALLOY C22 BUTTWELD FITTINGS
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 45000 , MPa – 310 | Psi – 1,00,000 , MPa – 690 | 45 % |
Hastelloy C22 Buttweld Fittings Benefits Include:
High-temperature resistance: Hastelloy C22 can withstand extreme temperatures, making it suitable for high-temperature applications in industries like chemical processing, petrochemical, and power generation.
Durability: The strength and toughness of Hastelloy C22 ensure that the fittings are durable and can handle high-pressure applications with ease.
Chemical resistance: Due to its unique composition, Hastelloy C22 demonstrates excellent resistance to a wide range of chemicals, including strong acids, alkaline solutions, and oxidizing agents.
Weldability: Hastelloy C22 Buttweld Fittings can be easily welded using conventional welding techniques, ensuring strong and leak-proof connections between pipes or tubes.
Low maintenance: The corrosion resistance and durability of Hastelloy C22 fittings reduce the need for frequent maintenance and replacement, leading to lower long-term costs.
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