Hastelloy® alloy C-276

UNS N10276
W.Nr 2.4819

Applications

Springs, heat exchangers, 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
Mn: 1 max
Ni: balance
V: 0.35 max
Si: 0.08 max
P: 0.04 max
S: 0.03 max
C: 0.01 max

Physical Properties

Density: 0.321 lb/in3, (8.89 g/cm3)

Modulus of Elasticity (E): 
At 70°F (20°C): 29.8 x 103 ksi (205 GPa)

Modulus of Rigidity (G): 
At 70°F (20°C): 11.4 x 103 ksi (79 GPa)

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

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

Thermal Conductivity: 67.9 Btu-in/ft2hr-°F, (9.8 W/m-K)

Applicable Specifications

Wire & Bar: ASTM B574, AWS A5.14, NACE MRO175 (ISO 15156-3).

Typical Mechanical Properties – Spring Applications

  • Annealed
    • Heat Treatment: 2048°F (1120°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: wireinfo@elgiloy.com
Phone: 1 847 695 1900 
Elgiloy Specialty Metals - Wire Products
356 N.Cross Street
Sycamore, IL 60178 USA