Hastelloy® alloy C-276

UNS N10276
W.Nr 2.4819

Applications

Springs, heat exchangers bellows and seals.

Description

Hastelloy® alloy C-276 is a Nickel-Molybdenum-Chromium corrosion resistant alloy. The alloy is resistant to pitting, crevice corrosion, and stress corrosion cracking. Hastelloy® C-276 is hardened only by cold-working. Hastelloy® C-276 can operate from cryogenic temperatures up to 750°F (400°C).

Industries Supplied

Chemical Processing, Pollution Control, Pulp and Paper Production and Waste Treatment.

Nominal Composition

Mo: 15.0 - 17.0
Cr: 14.5 - 16.5
Fe: 4.0 - 7.0
W: 3.0 - 4.5
Co: 2.5 max
C: 0.010 max
Si: 0.08 max
Mn: 1.0 max 
V: 0.35 max
P: 0.04 max
S: 0.03 max 
Ni: Balance

Physical Properties

Density: 0.321 lb/in3, (8.89 g/cm3)

Modulus of Elasticity (E): 
At 70°F (20°C): 29.7 x 103 ksi (205 GPa)

Modulus of Rigidity (G): 
At 70°F (20°C): 11.5 x 103 ksi (79.0 GPa)

Coefficient of Expansion:
6.78 µin/in.-°F (70°F to 600°F)
12.2 µm/m-°C (20°C to 300°C)

Electrical Resistivity: 51 µΩ.in, (130 µΩ.cm)

Thermal Conductivity: 68.0 Btu-in/ft2hr-°F, (9.80 W/m-K)

Applicable Specifications

Strip and Foil: ASTM B575, ASTM B906, ISO 6208, DIN 17750

Typical Mechanical Properties

  • Annealed
    • Heat Treatment: 2050°F (1121°C)
    • Tensile Strength: 120 - 160 ksi (830 - 1100 MPa)
    • Suggested Operating Conditions: -300°F to 750°F (-184°C to 400°C)
    •  
    • Spring Temper
    • Tensile Strength: 200 - 240 ksi (1380 - 1655 MPa)
    • Suggested Operating Conditions: -300°F to 750°F (-184°C to 400°C)

  • Hastelloy® is a registered trademark of Haynes International, Inc.

    For further information Contact:

    Email: stripinfo@elgiloy.com
    Phone: 1 888 843 2350 
    Elgiloy Specialty Metals - Strip Products
    1565 Fleetwood Dr.
    Elgin, IL 60123 USA