Hastelloy® C-276 UNS N10276

Hastelloy® C-276 is a versatile nickel-molybdenum-chromium-tungsten alloy fit for applications that demand a supreme level of corrosion resistance. Because of its resistance capabilities, Alloy C-276 is a strong candidate for most chemical and petrochemical processing applications. Hastelloy C-276 is by far the most widely used Hastelloy.

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Hastelloy C-276 Strip, Coil, Foil, Wire, ASTM B582

Applications of Hastelloy C-276

  • Bellows
  • Marine hardware
  • Chemical processing
  • Agrichemical production
  • Petrochemical production

Description of Hastelloy C-276

Hastelloy® C-276 is a most versatile nickel-molybdenum-chromium-tungsten alloy with excellent general corrosion resistance and good fabricability. Alloy C-276 has resisted the formation of grain boundary precipitates in the weld-heat affected zone, making it a candidate for most chemical and petrochemical processing applications in the as-welded condition. C-276 is readily fabricated by welding using methods similar to those utilized for nickel-based alloys.

Hastelloy C-276 is also known as:

  • Nickel C-276
  • Alloy C-276
  • Inconel C-276

What is the chemistry of Hastelloy C-276?

ElementMinMax
NickelBalanceBalance
Chromium
14.50
16.50
Molybdenum
15.00
17.00
Iron4.00
7.00
Tungsten3.00
4.50
Cobalt2.50
2.50
Manganese1.00
1.00
Carbon0.0100.010
Vanadium0.35
0.35
Silicon0.080.08
Sulfur0.0300.030
Phosphorous0.040
0.040

What are the Physical Properties of Hastelloy C-276?

Density: 0.321 lbs/in3, 8.89 g/cm3

Mean Coefficient of Thermal Expansion: in/in/° F (mm/m/ °C):
70 - 212 °F (20 - 100 ° C): 6.2 x 10-5 (11.2)

Thermal Conductivity: BTU-in/h-ft-°F (W/m-°K):
70 °F (21 °C): 71 (10.2)

Modulus of Elasticity: ksi (MPa)
29.8 x 103 (205 x 103) in tension

Melting Point: 2500 °F (1371 °C)

Hastelloy Forms Supplied By Ulbrich

Hastelloy C-276 Coils

  • Hastelloy C-276 Strip
  • Hastelloy C-276 Foil
  • Hastelloy C-276 Ribbon

Hastelloy C-276 Wire Profiles

  • Hastelloy C-276 Shaped Wire Profiles
  • Hastelloy C-276 Round Wire
  • Hastelloy C-276 Flat Wire
  • Hastelloy C-276 Square Wire

Mechanical Properties at Room Temperature

Annealed Properties of Hastelloy C-276

Ultimate Tensile Strength: 100 KSI min (690 MPa min)
Yield Strength: (0.2% offset) 45 KSI min (31 0 MPa min)
Elongation: 40% min
Hardness: Rb 100 min (aim)

Tempered:

Hastelloy® C-276 can be cold rolled to various tempers. Contact Ulbrich Technical Service for additional information.

Additional Properties

Hastelloy C-276 Corrosion Resistance Data

HASTELLOY C-276 is a nickel-chromium-molybdenum alloy with universal corrosion resistance unmatched by any other alloy. It has outstanding resistance to a wide variety of chemical process environments including hot contaminated mineral acids, ferric and cupric chlorides,solvents, chlorine and chlorine contaminated (both organic and inorganic), dry chlorine, acetic anhydride, formic and acetic acids, sea water and brine solutions, chlorine dioxide solutions, and hypochlorite.

For more information on Alloy C276 refer to NACE (National Associate of Corrosion Engineers) for recommendations.

Available Finishes for Hastelloy C276

#1Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D
Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process.
#2BSmooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#CBACourse bright annealed cold rolled matte finish and bright anneal
#2Cold Rolled
#2BASmooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part


* Not all finishes are available in all alloys - Contact Ulbrich Sales for more information.

Wire Finishes for Hastelloy C-276

XCExtra Clean Bright Annealed or Bright Annealed and Cold Rolled Grease - Ultra bright finish (for decorative applications) Soap - Soap coating on tempered wire to act as lubricant.
SF
SuperFinish™ is an extra clean extra smooth polished finish available only at Ulbrich

* Contact Ulbrich Wire for custom wire finishes.

Heat Treatment

Hastelloy® C-276 cannot be hardened heat treating.

Welding

For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & 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.

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