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Silver Tubes is one of the pioneer and suppliers of Alloy Steel A182 F22 Forged Fittings, which provides greatly enhanced resistance to sulphuric acid. The technical objective of the design of Alloy Steel A182 F22 Forged Socket Weld Fittings was even greater versatility, as compared with the traditional Ni-Cr-Mo alloys. Alloy Steel A182 F22 Forged Threaded Fittings was accomplished by use of high chromium content (23 %), high molybdenum content (16 %), and small but effective addition of copper (1.6 %). ASTM A182 F22 Alloy Steel Forged Fittings also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen. ASTM A182 F22 Alloy Steel Forged Socket Weld Fittings is applicable in chemical process industry reactors, heat exchangers, columns and piping; pharmaceutical industry reactors and dryers; and flue gas desulfurization system components.
ASTM A182 F22 Alloy Steel Forged Threaded Fittings is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions. To assess the resistance of alloys to pitting and crevice attack, ASME SA182 Alloy Steel F22 Forged Fittings is customary to measure their Critical Pitting Temperatures and Critical Crevice Temperatures in acidified 6 wt. % ferric chloride. The limiting factor in ASME SA182 Alloy Steel F22 Forged Socket Weld Fittings when dealing with strong oxidizing environments is the low Cr content, which means that hot, concentrated nitric acid environments are NOT desirable.
Specifications | ASTM A182 / ASME SA182 |
Dimensions | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
Size | 1/2" NB TO 48" NB. |
Type | Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type) |
Rating Pressure Threaded | 2000/3000/6000 LBS. |
Rating Pressure Socket weld | 3000/6000/9000 LBS. |
STANDARD | UNS | WERKSTOFF NR. | Trade Name |
Alloy Steel F22 | K21590 | 1.7380 | 2-1/4Cr-1/2Mo-Vd |
Grade | C | Mn | Si | P | S | Cr | Mo |
Alloy Steel F22 | 0.05 - 0.15 | 0.3 - 0.6 | 0.5 | 0.045 | 0.03 | 0.8 - 1.25 | 0.044 - 0.65 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min |
Alloy Steel F22 | 205 | 415 | 20 |
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