Petrochemical Industry Ni Cr Mo Alloy Hastelloy B2 Tube High Temperature Resistance

Petrochemical Industry Ni Cr Mo Alloy Hastelloy B2 Tube 10.7 W/M·K With High Temperature Resistance

Product Introduction

Hastelloy B2 tube is a high-performance nickel-based alloy tube with excellent corrosion resistance and high temperature stability, which is widely used in the petrochemical industry. Its main chemical composition includes nickel (Ni) 65%, molybdenum (Mo) 26-30%, iron (Fe) 1.6-2.0%, etc. These components give it excellent tolerance to a variety of acidic media, chlorides and other corrosive media in a reducing environment. The physical properties of Hastelloy B2 tube include density 9.2 g/cm³, melting point 1330-1380°C, tensile strength 745 MPa, yield strength 325 MPa, and elongation 40%. This alloy tube can still maintain good mechanical properties and oxidation resistance in high temperature environments, and is suitable for the manufacture of pipelines, reactors, heat exchangers and other equipment in the petrochemical industry. It has good processing performance and can be formed by conventional welding, cold rolling, hot rolling and other processes, and is suitable for the manufacture of parts with complex structures. Hastelloy B2 tube has strict implementation standards and complies with ASTM B622 and ASME SB622 standards, ensuring its wide application in chemical, petroleum, aerospace and other fields.

Parameter

Specific Applications

1. Pipeline system: used to manufacture pipelines for conveying corrosive chemicals, such as hydrochloric acid, sulfuric acid, phosphoric acid, etc. Its excellent corrosion resistance enables it to resist the erosion of these strong acids, ensuring the long-term stable operation of the pipeline system.
2. Reactors and agitators: In reactors and agitators that handle corrosive chemicals such as strong acids, Hastelloy B2 pipes can withstand harsh working environments, resist uniform corrosion and stress corrosion cracking, and ensure the normal operation of the equipment.
3. Heat exchangers: In high temperature and corrosive environments, used to manufacture heat exchangers, it can effectively transfer heat while resisting corrosion from chemical media, improving heat exchange efficiency and reducing equipment maintenance costs.
4. Desulfurization equipment: used to manufacture flue gas desulfurization equipment, such as scrubbers and chemical treatment units, can resist strong corrosive environments, ensure the long-term stable operation of equipment, and reduce air pollution.

Advantages and Characteristics

1. Excellent corrosion resistance: Hastelloy B2 alloy performs well in reducing environments and has excellent corrosion resistance to various corrosive media, including hydrochloric acid, sulfuric acid, acetic acid, phosphoric acid, etc. It performs well in hydrochloric acid at all concentrations and temperatures, and also has good resistance to hydrochloric acid gas.
2. Excellent high temperature performance: Hastelloy B2 alloy has excellent high temperature stability, with a maximum service temperature of about 1000°C. It can maintain good mechanical properties and corrosion resistance in high temperature environments.
3. Oxidation resistance: At high temperatures, molybdenum can form a dense oxide film, which effectively prevents oxygen penetration, thereby enhancing the oxidation resistance of the alloy.
4. High strength and toughness: Hastelloy B2 pipe has a tensile strength of at least 760 MPa (110,000 psi), a yield strength (0.2% offset) of at least 350 MPa (51,000 psi), and an elongation of at least 40%.
5. Good ductility: It has good ductility, is easy to process and shape, and is suitable for various processing techniques such as forging, hot rolling, cold working and welding.

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Q&A

1. What are the main characteristics of Hastelloy B2 pipes?
It has excellent corrosion resistance, good welding performance and face-centered cubic lattice structure.

2. What are the chemical compositions of Hastelloy B2 pipes?
It mainly contains nickel, molybdenum, a small amount of chromium, iron and other elements.

3. What are the physical properties of Hastelloy B2 pipes?
Density 9.2 g/cm³, melting temperature 1330-1380℃, hardness HRC 40.

4. What are the main application areas of Hastelloy B2 pipes?
It is widely used in chemical, petrochemical, energy manufacturing and pollution control.

5. What should be paid attention to in the processing and heat treatment of Hastelloy B2 pipes?
Keep clean when heating, avoid contact with harmful elements, control furnace gas, and heat quickly.