Hastelloy® C-22 (Alloy C-22) Wire UNS N06022
Alloy C-22 is nickel-chromium-molybdenum-tungsten alloy with improved resistance to both uniform and localized corrosion as well to a wide variety of mixed industrial chemicals.
Shaped, Flat, Square, Round, Fine Wire, Plated and Un-plated ASTM B574, ASTM B575
Hastelloy® C-22 and Alloy C-22 Description
Alloy C-22 is nickel-chromium-molybdenum-tungsten alloy with improved resistance to both uniform and localized corrosion as well to a wide variety of mixed industrial chemicals. Alloy C-22 alloy exhibits superior weldability and alloy C-22 weld ﬁllers are used to join other corrosion resistant alloys such as Alloy C-276 and AL-6XN® alloy.
Flue gas scrubber components
Nuclear fuel reprocessing
Sour gas production components
Pesticide production components
Chromium: 20.00 – 22.50
Molybdenum: 12.50 – 14.50
Iron: 2.00 – 6.00
Tungsten: 2.50 – 3.00
Cobalt: 2.50 max
Carbon: 0.10 max
Silicon: 0.08 max
Manganese: 0.50 max
Phosphorus: 0.02 max
Vanadium: 0.35 max
Density: 0.314 lbs/in³ 8, 8.69 g/cm³
Mean Coefﬁcient of Thermal Expansion: in/in/°F (mm/m/°C): 70-212°F (20-100°C): 6.9 x 10-612.4)
Thermal Conductivity: BTU-in/h-ft-°F (W/m-°K):
70°F (21°C): 70(10.1)
Modulus of Elasticity: KSI (MPa)
29.9 x 10³ (206 x 10³) in tension
Melting Point: 2550°F (1400°C)
Mechanical Properties at Room Temperature
Ultimate Tensile Strength: 100 KSI min (690 MPa min)
Yield Strength: (0.2% offset) 45 KSI min (310 MPa min)
Elongation: 45% min
Hardness: Rb 100 max (aim)
Alloy C-22 can be cold rolled to achieve the temper properties required by speciﬁc customers and/or manufacturing requirements. Contact Ulbrich Wire for details.
Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Standard Wire Finishes
Extra Clean: (XC) Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”
Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” ﬁnish for decorative applications
Soap (round wire only): Soap is used as a lubricant in the drawing process and is not removed. It acts as a lubricant during customer part forming operation. A soap ﬁnish is available in tempered products.
Plated: Many plating options are available.
∗Special ﬁnishes are available: Contact Ulbrich Wire Sales with special ﬁnish and plating requests.
Cut to lengths
Alloy C-22 cannot be hardened heat treating
For best results refer to: SSINA’s “Welding of Stainless Steels and Other Joining Methods”
∗Hastelloy ®C-22 is a registered alloy of Haynes Alloys
Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels and Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the ‘applications’ noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.