Hastelloy C-276 – Composition, Properties and Applications of Hastelloy C-276 Nickel-Molybdenum-Chromium Alloy by Alloy Wire International

Topics Covered

Background

Hastelloy C-276 – Nickel-Chromium Alloy

Chemical Composition of Hastelloy C-276

Typical Properties of Hastelloy C-276

Properties of Supplied Materials and Heat Treated Materials

Relevant Standards

Equivalent Materials

Applications of Hastelloy C-276

Background

Alloy Wire International Ltd. is a U.K. wire manufacturer specialising in the production of high performance alloys, mainly Nickel Alloys, but including Cobalt and Titanium Alloys.

These alloys might be used in any environment that requires resistance to heat and corrosion but where the mechanical properties of the metal must be retained.

Hastelloy C-276 – Nickel- Molybdenum-Chromium Alloy

Hastelloy C-276 is a Nickel-Molybdenum-Chromium alloy with the addition of Tungsten, has excellent corrosion resistance in a wide range of corrosive media and is especially resistant to pitting and crevice corrosion.

Chemical Composition of Hastelloy C-276

The compositional range for Hastelloy C-276 is provided in the table below.

Element

Content

Ni

55 %

Mo

15 - 17 %

Cr

14.5 - 16.5 %

Fe

4 - 7 %

W

3 - 4.5 %

Typical Properties of Hastelloy C-276

Typical properties of Hastelloy C-276 are covered in the following table.

Property

Metric

Imperial

Density

8.89 g/cm3

0.321 lb/in3

Melting Point

1370 °C

2500 °F

Co-Efficient of Expansion

11.2 μm/m.°C

(20-100 °C)

6.2x10-6 in/in.°F

(70-212 °F)

Modulus of Rigidity

78.6 kN/mm2

11400 ksi

Modulus of Elasticity

205.5 kN/mm2

29806 ksi

Properties of Supplied Materials and Heat Treated Materials

Condition of Supply

Heat Treatment (After Forming)

Annealed/Spring Temper

Stress relieve at 400 - 450°C (750 - 840°F) for 2 hours and air cool.

Condition

Approx Tensile Strength

Approx Service Temp.

Annealed

850 - 1050 N/mm2

123 - 152 ksi

-200 to +400°C

-330 to +750°F

Spring Temper

1300 - 1600 N/mm2

189 - 232 ksi

-200 to +400°C

-330 to +750°F

Relevant Standards

Hastelloy C-276 is covered by the following standards:

         ASTM B619

         ASTM B574

Equivalent Materials

Hastelloy C-276 is the tradename of Special Metals Group of Companies and equivalent to:

         W.NR 2.4819

         UNS N10276

         AWS 054

Applications of Hastelloy C-276

Hastelloy C-276 typically finds application in:

         Pollution control,

         Chemical processing,

         Waste treatment,

         Marine engineering,

         Pulp and paper production.

 

 

Source: Alloy Wire International

 

For more information on this source please visit Alloy Wire International.

 

Date Added: May 2, 2008 | Updated: Jun 11, 2013
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