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Super aliaj

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Super aliaj



A superalloy, or high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point.[1] Several key characteristics of a superalloy are excellent mechanical strength, resistance to thermal creep deformation, good surface stability, and resistance to corrosion or oxidation.

The crystal structure is typically face-centered cubic (FCC) austenitic. Examples of such alloys are Hastelloy, Inconel, Waspaloy, Rene alloys, Incoloy, MP98T, TMS alloys, and CMSX single crystal alloys.


Nickel-based superalloys are used in load-bearing structures to the highest homologous temperature of any common alloy system (Tm = 0.9, or 90% of their melting point). Among the most demanding applications for a structural material are those in the hot sections of turbine engines. The preeminence of superalloys is reflected in the fact that they currently comprise over 50% of the weight of advanced aircraft engines. The widespread use of superalloys in turbine engines coupled with the fact that the thermodynamic efficiency of turbine engines is increased with increasing turbine inlet temperatures has, in part, provided the motivation for increasing the maximum-use temperature of superalloys. In fact, during the past 30 years turbine airfoil temperature capability has increased on average by about 4 °F (2.2 °C) per year. Two major factors which have made this increase possible are

 Advanced processing techniques, which improved alloy cleanliness (thus improving reliability) and/or enabled the production of tailored microstructures such as directionally solidified or single-crystal material.

 Alloy development resulting in higher-use-temperature materials primarily through the additions of refractory elements such as Re, W, Ta, and Mo.


Grad ChinezescGrad Internațional
GH2901Aliaj 901
GH2907Inconel 907
GH3030Nimonic 75
GH3044        230. Haynes
GH3600        Inconel 600
GH3625        Inconel 625
GH4080A        Nimonic 80A
GH4090Nimonic 90
GH4145Inconel X-750
GH4169Inconel 718

ArticolDimensiune (mm)ProcesConditii de livrare
Barul rotundDIA1.0 - 30Desen la rece / rectificare fără centruBright & Anneal
DIA20 - 80CoajăBright & Anneal
DIA 13-180Laminate la caldSuprafață neagră și recuit
DIA 70 - 400Laminate la caldSuprafață neagră și recuit
Bar platT 3.0-20 XW 20-100Laminate la caldSuprafață neagră și recuit
BlocaT 20-200 X 300-800Laminat la cald și forjat la caldSuprafață neagră / Machine & Anneal
SârmăDIA 5.5 - 13Laminate la caldSuprafață neagră și recuit
AsternuturiT1.0 - 2.5Laminate la receSuprafață neagră și recuit
T 2.5 - 8.0Laminate la caldSuprafață neagră și recuit