Trade name: Inconel? 600 Ni-based superalloy

American brand: N06600 nickel-based superalloy

China brand: GH600/GH3600

First,? Overview of Inconel 600(N06600) nickel-based alloy;

Inconel600 is an early developed Ni-Cr-Fe-based solid solution strengthening alloy, which has good high temperature corrosion resistance and oxidation resistance, excellent cold and hot working and welding process performance, satisfactory thermal strength and high plasticity below 700℃. Alloys can be strengthened by cold working or joined by resistance welding, solution welding or brazing. Can supply cold-rolled thin plates, hot-rolled thick plates, strips, wires, bars, round cakes, ring blanks, ring forgings and so on. Suitable for manufacturing low-load antioxidant parts below 1 100℃.

1, material grade: Inconel 600(N06600) nickel-based alloy.

2.Inconel600 similar brands: Inconel, GH600, GH3600 (China).

3.Inconel600 chemical composition:? See table 1- 1. ?

Note: 1 aerospace material standard BZ-44-9003B-0 stipulates that ω (c) ≤ 0. 10%, ω (p) ≤ 0.020% and ω (nb) ≤10%.

2 Rich 1995- 13 standard stipulates that ω (p) is less than 0.025% and ω (nb) is less than1.00%.

4. Heat treatment system: plate:10/kloc-0 ~1050℃, 3 ~ 5 min/mm, air cooling; Strip steel: 10 10℃ 10℃, air-cooled; Wire material: 1065℃ 10℃, air-cooled. Under the conditions of 10 10℃ and 10℃, the air-cooled solid solution treatment of bars and rings was tested.

5. Variety specification and supply status: various specifications of plates, bars, forgings, strips, wires, round cakes, ring blanks and ring forgings can be supplied. The bar is provided in forged state, and the surface is polished or turned and polished; Round cakes and ring blanks are supplied in forged state; The ring is provided in a solid solution state; The plate is supplied after solid solution, alkali pickling, straightening and trimming; The strip is delivered after cold rolling, solid solution and descaling; The wire is delivered in the state of solution pickling, disc shape or straight bar, and the solution straight bar is finely polished.

6. Casting process: the alloy is melted by one of the following processes: (1) non-vacuum induction melting plus electroslag remelting; (2) electric arc furnace smelting and electroslag remelting; (3) vacuum smelting.

7. Application and special requirements: The alloy has mature experience abroad and has been made into aero-engine parts at home. After flight test, it has also been used in aviation.

Two. Physical and chemical properties of Inconel 600(N06600) nickel-based alloy:?

Thermal properties of 1 and Inconel600:

(1), melting temperature range:? 1370~ 1430℃[ 1]。

(2) Thermal conductivity: See Table 2- 1.

(3) Specific heat capacity: See Figure 2- 1.

(4) Linear expansion coefficient: See Table 2-2.

2.Inconel600 density: ρ=8.43g/cm3.

3. Electrical properties of 3.Inconel600: See Figure 2-2 for resistivity.

Three. Mechanical properties of Inconel 600(N06600) nickel-based alloy:

Performance specified in Inconel600 technical standard: See Table 3- 1.

① The supplied plates shall be subjected to room temperature bending test, with the mandrel diameter equal to the product thickness multiplied by the bending coefficient in Table 3-2, and the bending axis shall be parallel to the rolling direction. After bending 180, check with a magnification of 20 times, and there shall be no cracks.

Table 3-2

Four. Microstructure of Inconel 600(N06600) nickel-based alloy:

1, Inconel600 phase transition temperature:

2.Inconel600 time-temperature-structure transition curve:?

3. Microstructure of 3.Inconel600 alloy: After the alloy was treated at 1 120℃ for 2h, only tin nitride and Cr7C3 carbide were found. After long-term aging at 870℃ 1500h, the microstructure of the alloy is still Cr7C3 and TiN, which indicates that the structure of the alloy is stable.

Verb (abbreviation of verb) Inconel 600(N06600) Technological properties and requirements of nickel-based alloy;

1, Inconel600 formability: the alloy has good hot workability, and the heating temperature of ingot forging is110 ~1140℃; The final forging temperature is not lower than 950℃, the slab rolling heating temperature is1130 ~170℃, and the finishing rolling heating temperature is1090 ~130℃. The solution treatment temperature of the finished product is10/0 ~1050℃.

2. Weldability of 2.Inconel600: The alloy has good weldability and can be connected by arc welding, argon arc welding, resistance welding, brazing and other methods. After fusion welding, large or complex welded structural parts should be annealed at 870℃ for 65438±0h to eliminate welding stress.

3. Heat treatment process of 3.Inconel600 parts: The heat treatment process of parts shall be implemented according to the heat treatment system of corresponding material standards. The annealing treatment of sheet and strip parts should be carried out in a protective atmosphere.