{"id":13506,"date":"2024-08-06T17:06:42","date_gmt":"2024-08-06T17:06:42","guid":{"rendered":"https:\/\/haynesintl.com\/alloys\/portafolio-de-aleaciones\/aleaciones-resistentes-a-la-corrosion\/hastelloy-c-22hs\/"},"modified":"2025-02-25T15:49:26","modified_gmt":"2025-02-25T15:49:26","slug":"hastelloy-c-22hs","status":"publish","type":"alloys","link":"https:\/\/haynesintl.com\/es\/alloys\/portafolio-de-aleaciones\/aleaciones-resistentes-a-la-corrosion\/hastelloy-c-22hs\/","title":{"rendered":"HASTELLOY\u00ae<\/sup> C-22HS\u00ae<\/sup>"},"content":{"rendered":"\n
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Principal Features<\/h2>\n\n\n\n

HASTELLOY\u00ae<\/sup> C-22HS\u00ae<\/sup> alloy (N07022) 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.<\/p>\n\n\n\n

Product Forms<\/h3>\n\n\n\n

C-22HS\u00ae<\/sup> alloy is available in the form of plate, sheet, strip, billet, bar, wire, pipe, and tube. Round products in the form of solid bars are available up to 10″ with various amounts of cold work to achieve high strength and toughness by simultaneously retaining the excellent corrosion resistance of the alloy.<\/p>\n\n\n\n

Oil & Gas Applications<\/h3>\n\n\n\n

The data in this document is believed to be useful for applications in the oil & gas industry, or other industries which may require an alloy with excellent corrosion resistance and strength levels higher than \u201cstandard\u201d HASTELLOY\u00ae<\/sup> C-22\u00ae<\/sup> alloy. For additional oil and gas information on C-22HS\u00ae<\/sup>, please click here<\/a>.<\/p>\n\n\n\n

Available in Three Very High-Strength Conditions<\/h3>\n\n\n\n

Early testing of C-22HS\u00ae<\/sup> alloy was focused on material in the annealed + age-hardened condition where the material was annealed at 1975\u00b0F (1079\u00b0C) and age-hardened at 1300\u00b0F (704\u00b0C)\/16h\/Furnace cool (FC) to 1125\u00b0F (607\u00b0C)\/32h\/Air-cool (AC.) In this \u201cstandard condition\u201d C-22HS\u00ae<\/sup> alloy will typically have strengths around 100 ksi (690 MPa). While this strength level is almost double of \u201cC-type\u201d 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\u00ae<\/sup> alloy in three other \u201cvery high strength\u201d conditions:<\/p>\n\n\n\n

1) Cold Worked<\/p>\n\n\n\n

2) Cold Worked + Age-HardenedA<\/sup><\/p>\n\n\n\n

3) Low Temperature (LT) AnnealedB <\/sup>+ Age-HardenedC<\/sup><\/p>\n\n\n\n

A<\/sup>1125\u00b0F (607\u00b0C)\/10h\/AC B<\/sup>1850\u00b0F (1010\u00b0C) C<\/sup>1300\u00b0F (704\u00b0C)\/16h\/FC to 1125\u00b0F (607\u00b0C)\/32h\/AC<\/p>\n\n\n\n

A comparison of yield strengths for the three very high strength conditions is shown below along with that of the annealed and \u201cstandard\u201d conditions. Haynes does not recommend use of highly cold worked and aged material because the increase in yield strengths is minimal and the susceptibility to hydrogen embrittlement in severe oil well conditions is increased.<\/p>\n\n\n

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Nominal Composition<\/h2>\n\n\n\n
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\n \n\n \n \n \n \n \n \n \n \n \n \n \n \n
\n Weight % <\/td>\n <\/tr>\n
\n Nickel <\/td>\n \n 61 Balance <\/td>\n <\/tr>\n
\n Cobalt <\/td>\n \n 1 max. <\/td>\n <\/tr>\n
\n Chromium <\/td>\n \n 21 <\/td>\n <\/tr>\n
\n Molybdenum <\/td>\n \n 17 <\/td>\n <\/tr>\n
\n Iron <\/td>\n \n 2 max. <\/td>\n <\/tr>\n
\n Tungsten <\/td>\n \n 1 max. <\/td>\n <\/tr>\n
\n Manganese <\/td>\n \n 0.8 max. <\/td>\n <\/tr>\n
\n Aluminum <\/td>\n \n 0.5 max. <\/td>\n <\/tr>\n
\n Silicon <\/td>\n \n 0.08 max. <\/td>\n <\/tr>\n
\n Carbon <\/td>\n \n 0.01 max. <\/td>\n <\/tr>\n
\n Copper <\/td>\n \n 0.5 max. <\/td>\n <\/tr>\n <\/table>\n<\/div>