Chemical composition of C-276 Hastelloy:
alloy
%
nickel
chromium
molybdenum
iron
tungsten
cobalt
carbon
manganese
silicon
vanadium
phosphorus
sulfur
Ha C
Minimum
allowance
Fourteen point five
Fifteen
Four
Three
Maximum
Sixteen point five
Seventeen
Seven
Four point five
Two point five
Zero point zero eight
One
One
Zero point three five
Zero point zero four
Zero point zero three
C276
Minimum
allowance
Fourteen point five
Fifteen
Four
Three
Maximum
Sixteen point five
Seventeen
Seven
Four point five
Two point five
Zero point zero one
One
Zero point zero eight
Zero point three five
Zero point zero four
Zero point zero three
Physical properties of C-276 Hastelloy:
density
8.9 g/cm3
melting point
1325-1370 C
The minimum value of the mechanical properties of C-276 Hastelloy alloy at room temperature:
Alloys and states
tensile strength
N/mm2 Rm
Yield strength
RP0.2N/mm2
Elongation rate
A5%
Ha /C276 C
Six hundred and ninety
Two hundred and eighty-three
Forty
This alloy has the following characteristics:
1 under the condition of oxidation and reduction, most of the corrosion media have excellent corrosion resistance.
2 excellent corrosion resistance, crevice corrosion and stress corrosion cracking.
Metallographic structure of C-276 Hastelloy:
C276 is a face centered cubic lattice structure.
Corrosion resistance of C-276 Hastelloy:
C276 alloy is suitable for all kinds of chemical process industry containing oxidation and reducing medium. The high molybdenum and chromium content enables the alloy to be able to resist the corrosion of chloride ion, and the corrosion resistance of the tungsten element is further improved. C276 is only several resistance to wet chlorine, hypochlorite and chlorine dioxide solution corrosion material of chloride salt solution of the alloy of high concentration has significant corrosion resistance (such as ferric chloride and copper chloride).
C-276 Hastelloy application areas are:
C276 alloys have been widely used in the chemical and petrochemical fields, such as in the application of the element and the catalytic system in the contact with chlorinated organic compounds. This material is particularly suitable for high temperature, mixed with impurities of inorganic acids and organic acids (such as formic acid and acetic acid), the use of seawater corrosion environment.
C-276 Hastelloy other application areas:
1 pulp and paper industry, such as cooking and bleaching containers
Washing tower, re heater, wet steam fan, etc. in 2.FGD system
3 devices and components for operation in acid gas environments
4 reactor for acetic acid and acid products
5 sulfuric acid condenser
6 methylene two phenyl isocyanate (MDI)
7 pure phosphoric acid production and processing