14 Years Manufacturer Nickel Alloy Inconel 783 UNS R30783 for French Importers

In the past few years, our company absorbed and digested advanced technologies both at home and abroad. Meanwhile, our company staffs a team of experts devoted to the development of 14 Years Manufacturer Nickel Alloy Inconel 783 UNS R30783 for French Importers, We sincerely look forward to hearing from you. Give us a chance to show you our professionalism and passion.

HY 783 Material grades and equivalents

Inconel 783 / Alloy 783 / UNS R30783

     An oxidation resistant low coefficient of thermal expansion (low CTE) superalloy developed for gas turbine applications.

The alloy is strengthened by a precipitation-hardening heat treatment made possible by additions of niobium and aluminum. In addition, the aluminum content provides excellent resistance to oxidation at high temperature.

The alloy’s density is 5% less than those of superalloys such as INCONEL alloy 718. The combination of low expansion, high strength and excellent resistance to oxidation makes the alloy especially useful for gas turbine and steam turbine components.

The low expansion enables closer control of clearances and tolerances for greater power output and fuel efficiency.

Table 1 - Limiting Chemical Composition*, %

Chromium……………………………………………………………. 2.5-3.5

Nickel ……………………………………………………………….26.0-30.0

Iron ……………………………………………………………………24.0-27.0

Niobium…………………………………………………………………2.5-3.5

Aluminum………………………………………………………………5.0-6.0

Cobalt………………………………………………………………Remainder

Boron……………………………………………………………..0.003-0.012

Carbon………………………………………………………………0.03 max.

Manganese………………………………………………………..0.50 max.

Silicon……………………………………………………………….0.50 max.

Phosphorus……………………………………………………..0.015 max.

Sulfur ……………………………………………………………….0.005 max

Titanium…………………………………………………………………0.1-0.4

Copper……………………………………………………………….0.50 max

Physical Properties

Table 2 - Physical Constants

Density, g/cm3…………………………………………………………..7.81

lb/in3………………………………………………………….0.282

Melting Range, °F ……………………………………………..2437-2565

°C …………………………………………….1336-1407

Specific Heat, Btu/lb•°F (77°F)……………………………………0.109

J/kg•°C (25°C)……………………………………….455