Hastelloy˘ C-276

Available in any of the 'profile options'

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

Chemical Composition

Specifications

Designations

Key Features

Typical Applications

Element	Min %	Max %
Mo	15.00	17.00
Cr	14.50	16.50
Fe	4.00	7.00
W	3.00	4.50
Co	–	2.50
C	–	0.01
Si	–	0.08
Mn	–	1.00
V	–	0.35
P	–	0.04
S	–	0.03
Ni	bal

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

W.Nr 2.4819
UNS N10276
AWS 054

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.

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

Density	8.89 g/cm³	0.321 lb/in³
Melting Point	1370°C	2500°F
Coefficient of Expansion	11.2 μm/m °C (20 – 100°C)	6.2 x 10^-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

Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire	Type	Temperature		Time (Hr)	Cooling
Condition as supplied by Alloy Wire	Type	°C	°F	Time (Hr)	Cooling
Annealed or Spring Temper	Stress Relieve	400 – 450	750 – 840	2	Air

Properties
Condition	Approx. tensile strength		Approx. operating temperature
Condition	N/mm²	ksi	°C	°F
Annealed	850 – 1050	123 – 152	-200 to +400	-330 to +750
Spring Temper	1300 – 1700	189 – 247	-200 to +400	-330 to +750