what is inconel 690#Inconel 690

what is inconel 690#Inconel 690

The materials for the heat transfer tubes of steam generators in PWR nuclear power plants have gone through a development process, including 304 austenitic stainless steel, 600 alloy, 800 alloy and 690 alloy. Research on corrosion failure of 600 alloy in service shows that intergranular corrosion and intergranular stress corrosion cracking are the main problems. Alloy 690 is used as a heat transfer tube material for steam generators in PWR nuclear power plants. Since it was put into use in the 1990s, no damage has been reported, and the effect is very good.
Product form: bar, pipe, plate, ring, forging
N06690 chemical composition:
Ni: margin
Cr: 30.39
Fe: 8.8
C: 0.023
Al: 0.22
Ti: 0.26
Mn: 0.23
Si: 0.07
Cu: 0.02
P: 0.006
S: 0.002
The physical properties of N06690 in the annealed state:
Density: 8.19g / cm
Melting point: 1343-1377 ℃
Young’s modulus: 211GPa
Poisson’s ratio: 0.289
Yield strength: 350MPa
Tensile strength: 700MPa
Elongation: 45%