HASTELLOY C-22Seamless Tubes
UNS No: UNS NO6022
Werkstoff Nr: 2.4602
Common Trade Names: Hastelloy C22, Inconel 22, Nicrofer 5621
The above names are trade names and/or trademarks of specific manufactures including Haynes International, Inc. Prosaic Steel & Alloy is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.
Specifications–Hastelloy C-22 Tubes – UNS N06022
Product Range – Seamless Tubes6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
Specifications–ASTM B622 / ASME SB622.
Finish Conditions–Cold Drawn Solution Annealed & Pickled / Cold Drawn Bright annealed / NACE MRO 175NACE MRO 175
A most versatile product like nickel-chromium-molybdenum-tungsten alloy available today with improved resistance to both localized and uniform corrosion as well as to a variety of mixed industrial chemicals but the Hastelloy C-22 alloy exhibits superior weldability and is used as weld overlay consumablesover and alloy filler wire to improve resistance to corrosion.
Hastelloy C-22 alloy has exceptional resistance to a wide variety of chemical process environments, including strong oxidizers such as cupric and ferric chlorides, chlorine, hot contaminated solutions like (inorganic and organic), acetic anhydride and acetic acids, formic, and seawater and brine solutions. Hastelloy C-22 alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition.
Hastelloy C-22 should not be used in service temperatures above 1250 ° F due to the formation of detrimental phases which form above this temperature.
Hastelloy C22 provides resistance to general corrosion, pitting, crevice corrosion, intergranular attack, and stress corrosion cracking. Hastelloy C22 can be used for many applications such as marine, power, chemical processing, pollution control, paper processing, and waste disposal industries. Hastelloy C22 contains chromium, molybdenum, tungsten, and iron which makes the alloy resistant to corrosion in stagnant or flowing seawater. The alloy is formed by gas tungsten-arc, gas metal – arc, and shielded metal-arc processes.
Chemical Analysis of Alloy C22 (UNS N06022)
|.015 max||.50 max||.02
|.02 max||.08 max||20.0 – 22.5||rem||12.5 – 14.5||2.5 max||2.0 – 6.0||2.5 – 3.5||.35 max|
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