Which bolt is better for Suzhou GH4 169?

GH4 169/gh 169 is an alloy with high hardness, high wear resistance and high temperature resistance.

Overview of alloys:

It has an austenitic structure, and the white phase formed after precipitation hardening makes it have satisfactory mechanical properties. The δ phase formed at the grain boundary during heat treatment makes it have good plasticity and strength. The high temperature can reach1400 F, and the oxidation resistance can reach1800 F. The high tensile strength and impact strength of this nickel alloy will not decrease at low temperature, and it can also be welded well.

Similar brands:

GH 169 (China),

NC 19FeNb (France),

NiCr 19Fe 19Nb5, Mo3 (Germany),

North America 5 1 (UK)

UNS number 77 18 (USA)

NiCr 19Nb5Mo3(ISO)

Physical properties:

Density: 8.2g/cm3

Melting point 1260- 1340℃

Chemical composition:

C≤0.08

Mn≤0.35

Si≤0.0 15

P≤0.35

S≤0.0 15

Cr 17~2 1

Ni50~55

Mo2.8~3.3

Copper ≤0.3

Ti0.65~ 1. 15

0.2-0.8 of aluminum

Iron edge

Nb4.75~5.5

B≤0.006

Small value of mechanical properties of the alloy at room temperature;

The tensile strength of the alloy after solution treatment is 965Rm N/mm2? Yield strength 550RP0.2N/mm2

Elongation 30 A5%? Brinell hardness ≤363HB

Metallographic structure:

The alloy has austenite structure, and the Y "phase formed after precipitation hardening makes it have good mechanical properties. The δ phase formed at the grain boundary during heat treatment makes it have good plasticity.

Corrosion resistance:

The alloy has excellent stress corrosion cracking and pitting resistance in both high and low temperature environments. The alloy has excellent resistance to cation transformation at high temperature.

Features:

1. machinability

2. It has high tensile strength, pi tensile strength, creep strength and fracture strength at 700℃.

3. It has high high temperature resistance at 1000℃

4. It has stable chemical properties at low temperature.

5. Good welding performance

Application:

Because of its high temperature strength at 700℃, good corrosion resistance and processability, it can be widely used in various demanding occasions. 1 .turbine 2. Liquid fuel 3. Cryogenic engineering. Acidic environment. nuclear engineering