incoloy20/Alloy 20/2.4660/Inconel 625 bar/tube

The Cr content in Alloy 20 (N08020) nickel-based alloys is typically 19.0-21.0% and the nickel content is 32.0-38.0%. Alloy 20 (Incoloy 20) alloy is a nickel-based alloy containing molybdenum and copper, which has good hot and cold workability. Alloy 20 (N08020) nickel-based alloy is a corrosion-resistant alloy with many excellent properties. It has good resistance to oxidative and moderate reductive corrosion, and has excellent resistance to stress corrosion cracking and good localized corrosion resistance. In many The chemical process medium has satisfactory corrosion resistance characteristics.

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Nickel alloy

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1. Overview of Alloy 20 (N08020) nickel-based alloys:
The Cr content in Alloy 20 (N08020) nickel-based alloys is typically 19.0-21.0% and the nickel content is 32.0-38.0%. Alloy 20 (Incoloy 20) alloy is a nickel-based alloy containing molybdenum and copper, which has good hot and cold workability. Alloy 20 (N08020) nickel-based alloy is a corrosion-resistant alloy with many excellent properties. It has good resistance to oxidative and moderate reductive corrosion, and has excellent resistance to stress corrosion cracking and good localized corrosion resistance. In many The chemical process medium has satisfactory corrosion resistance characteristics.
2. Alloy 20 (N08020) nickel-based alloy Nickel-based alloy chemical composition: see Table-1:

C≤	Si≤	Mn≤	P≤	S≤	Cr≥	Ni≥	Mo≥	Cu≤
0.07	1.00	2.00	0.045	0.035	19.0-21.0	32.0-38.0	2.0-3.0	3.0-4.0
Other	N≤	Al≤	Ti≤	Fe≤	Co≤	V≤	W≤	Nb+Ta
Other	-	-	-	Margin	-	-	-	≤1.00

3. Physical properties of Alloy 20 (N08020) nickel-based alloy:
1. Alloy 20 (N08020) alloy nickel-based alloy density: 8.08 g/cm3,
2. Alloy 20 (N08020) alloy nickel-based alloy melting point: 1357-1430℃.
4. Mechanical properties of Alloy 20 (N08020) nickel-based alloy:
1. Alloy 20 (N08020) alloy tensile strength (MPA) Rm N/mm2 ≥ 620,
2. Alloy 20 (N08020) alloy yield strength (MPA) RP0.2N/mm2 ≥ 300,
3. The elongation of Alloy 20 (N08020) alloy is A5 % ≥ 40.
Five, Alloy 20 (N08020) nickel-based alloy phase structure:
Alloy 20 (N08020) nickel-based alloy was treated at 1120°C for 2h, with only TiN nitride and Cr7C3 carbide. After long-term aging at 870°C at 1500°C, the microstructure was still Cr7C3 and TiN, indicating that the structure of the alloy is stable. of.
6. Process performance and requirements of Alloy 20 (N08020) nickel-based alloy:
1. Alloy 20 (N08020) nickel-based alloy has good hot working properties, and the heating temperature for ingot forging is 1110℃～1140℃. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.
2. Alloy 20 (N08020) nickel-based alloy has good welding performance and can be connected by various methods such as original arc welding, argon arc welding, resistance welding and brazing. Large or complex welded structural parts should be welded at 870 Annealed at ℃ for 1h to eliminate welding stress.
3. Alloy 20 (N08020) nickel-based alloy must be machined after heat treatment. Due to the work hardening of the material, it is advisable to use a lower cutting speed and heavy feed than the low-alloy standard austenitic stainless steel for machining before turning in Below the cold work hardened surface.