Types, Grades, Standards and Uses of Alloy 20 Wire Mesh

 

The Cr content in Alloy 20 (N08020) nickel base alloy is usually 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 working and cold working properties. 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 resistance to localized corrosion. Satisfactory corrosion resistance in chemical process media.

 

Alloy 20 (N08020) nickel-based alloy physical properties:

 

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.

 

Alloy 20 (N08020) nickel-based alloy mechanical properties:

 

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. Alloy 20 (N08020) alloy elongation A5 % ≥ 40.

 

Alloy 20 (N08020) nickel-based alloy phase structure:

Alloy 20 (N08020) nickel-based alloy was treated at 1120 for 2 hours, and there were only TiN nitrides and Cr7C3 carbides. After 1500 long-term aging at 870, the structure was still Cr7C3 and TiN, indicating that the structure of the alloy was stable.

 

Alloy 20 (N08020) nickel-based alloy process performance and requirements:

1. Alloy 20 (N08020) nickel-based alloy has good thermal processing performance, and the heating temperature of steel ingot forging is 1110-1140. The average grain size of the alloy is closely related to the degree of deformation of the forging and the final forging temperature.

2. Alloy 20 (N08020) nickel-based alloy has good welding performance, and can be connected by various methods such as arc welding, argon arc welding, resistance welding and brazing. Large or complex welded structural parts should be welded at 870 Anneal for 1h to relieve welding stress.

3. Alloy 20 (N08020) nickel-based alloy must be machined after heat treatment. Due to the work hardening of the material, it should be processed at a lower cutting speed and heavy feed than that of low-alloy standard austenitic stainless steel. Underneath the hardened surface.