Hastelloy® C22HS Fasteners (UNS N06022 / ASTM B574 / 2.4602)
Hastelloy® C-22HS® alloy is the premier nickel-chromium-molybdenum, corrosion-resistant material for oil and gas industry use. Cold working of the alloy at levels between 30 and 65% result in high room temperature yield strengths. It exhibits exceptional resistance to sour gas environments and is NACE/ISO approved.
Early testing of C-22HS® alloy was focused on material in the annealed + age-hardened condition where the material was annealed at 1975°F (1079°C) and age-hardened at 1300°F (704°C)/16h/Furnace cool (FC) to 1125°F (607°C)/32h/Air-cool (AC.) In this “standard condition” C-22HS® alloy will typically have strengths around 100 ksi (690 MPa). While this strength level is almost double of “C-type” alloys in the annealed condition, many oil and gas applications require even greater strength. For this reason, a considerable development effort has been generated on C-22HS® alloy in three other “very high strength” conditions:
1) Cold Worked
2) Cold Worked + Age-Hardened (1125°F (607°C)/10h/AC)
3) Low Temperature (LT) Annealed(1850°F (1010°C) C1300°F (704°C)/16h/FB) + Age Hardened(to 1125°F (607°C)/32h/AC)
Beacon Corporation is one of very few Fastener Manufacturers who are able to work in Hastelloy® C-22HS. Fasteners including as Bolts, Nuts, Socket Capscrews, Washers, Studs, Studbolts, Socket Setscrews, Socket Countersunk Screws & machined components to all recognised standards drawings as well as customer drawings can be produced at Beacon Corporation Limited.
*Information is given as guidance only