Description:

ASTM B637 Inconel 718 UNS N07718 GH4169 W.Nr 2.4468 bar

 

 

 

GH4169 was investigated (American standard UNS N07718 / din W.N r. 2.4668)

The chemical composition of GH4169 was investigated:

type	C	Cr	Ni	Co	Mo	Al	Ti	Fe
standard	≤0.08	17.0~21.0	50~55.0	≤1.0	2.80~3.30	0.30~0.70	0.75~1.15	balance
good	0.02~0.06	17.0~21.0	50~55.0	≤1.0	2.80~3.30	0.30~0.70	0.75~1.15	balance
prime	0.02~0.06	17.0~21.0	50~55.0	≤1.0	2.80~3.30	0.30~0.70	0.75~1.15	balance

 

Alloy GH4169 was investigated with the following features:

At 700 ℃ has high tensile strength, fatigue strength, creep strength and fracture strength.At 1000 ℃ has the high oxidation.

Has the stable chemical properties at low temperature, good welding performance.No matter in the high temperature or low temperature environment, alloy GH4169 was investigated has excellent resistance to stress corrosion cracking and pitting.Alloy GH4169 was investigated under the high temperature oxidation resistance is particularly outstanding

 

The metallographic structure of GH4169 was investigated:

Alloy GH4169 was investigated for austenite structure, precipitation hardening generated after gamma "phase with the excellent mechanical properties. In the process of heat treatment on grain boundary generated at the delta facies is the best plastic

 

 

 

 

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