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List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Hastelloy˘ C-276

Hastelloy˘ C-276

This 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. Hastelloy C-276 is considered to be the most versatile corrosion resistant alloy available, as it is resistant to the formation of grain boundary precipitates in the weld heat-affected zone; this makes it ideal for most chemical process applications in an as welded condition. Hastelloy C-276 also has exceptional resistance to pitting, stress-corrosion cracking and oxidizing atmospheres, as well as excellent resistance to multiple different chemical environments.

Hastelloy C-276 is also known as Nicrofer 5716, Superimphy 276, and Inconel C-276.

Available in all profile options

Hastelloy˘ C-276 - Alloy Wire International 1

Key Features

Hastelloy C-276 offers the following key features:

Excellent corrosion resistance in a wide range of corrosive media including, sulphur compounds and chloride ions.
Excellent resistance to pitting, crevice corrosion and stress corrosion cracking.
Withstands the corrosive effects of wet chlorine gas, hypochlorite and chlorine dioxide.
Good for sea water applications.

Typical Applications

Hastelloy C-276 is known to be suitable for the following applications:

Pollution control
Chemical processing
Waste treatment
Marine engineering
Pulp and paper production


Designations

W.Nr 2.4819
UNS N10276
AWS 054

Specifications

ASTM B574
ASTM B575
ASTM B619
ISO 15156-3 (NACE MR 0175)

Chemical Composition

The chemical composition of Hastelloy C-276 is indicated in the table below:

ElementMin %Max %
Mo15.0017.00
Cr14.5016.50
Fe4.007.00
W3.004.50
Co2.50
C0.01
Si0.08
Mn1.00
V0.35
P0.04
S0.03
Nibal

Alloy Details

Hastelloy C-276 density, melting point, coefficient of expansion, and modulus of elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.89 g/cm³1370 °C11.2 μm/m °C (20 – 100 °C)78.6 kN/mm²205.5 kN/mm²
0.321 lb/in³2500 °F6.2 x 10-6 in/in °F (70 – 212 °F)11400 ksi29806 ksi

Heat treatment of finished parts

The typical heat treatment of Hastelloy C-276:

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve400 – 450 °C (750 – 840 °F)2 HrAir

Properties

The typical mechanical properties of Hastelloy C-276:

Annealed
Approx. tensile strength<1050 N/mm²<152 ksi
Approx. operating temperature depending on load** and environment-200 to +400 °C-330 to +750 °F
Spring Temper
Approx. tensile strength1300 – 1700 N/mm²189 – 247 ksi
Approx. operating temperature depending on load** and environment-200 to +400 °C-330 to +750 °F

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Haynes International