Cobalt alloy Haynes 188 is a high temperature alloy. Here are some detailed information about Haynes 188:
- Specific composition: Haynes 188 is mainly composed of cobalt (Co), nickel (Ni), chromium (Cr), tungsten (W) and aluminium (Al). Its typical composition is: nickel (Ni) 47-51%, chromium (Cr) 20-24%, tungsten (W) 13-17%, aluminium (Al) 3.0-4.4%, cobalt (Co) remainder. In addition, it also contains small amounts of copper (Cu), niobium (Nb) and iron (Fe) and other elements.
- Specific gravity: The specific gravity of Haynes 188 is about 8.2 g/cm3.
- Production standards: The main production standards for Haynes 188 are AMS 5608 and AMS 5772.
- Forging: Haynes 188 has good forging properties. It can be moulded by hot forging or isothermal forging process.
- Heat Treatment: Haynes 188 is heat treated at high temperature, usually by solution treatment and aging treatment process to improve its strength and heat resistance.
- Cold working: Haynes 188 has poor performance in cold working and is prone to problems such as cracking and deformation, so it is generally unsuitable for extensive cold working.
- Corrosion resistance: Haynes 188 has good corrosion resistance at high temperatures and good resistance to both oxidising and reducing atmospheres.
- Mechanical Properties: Haynes 188 has excellent high-temperature mechanical properties, including high strength, good oxidation resistance, excellent thermal fatigue resistance and oxidation spalling resistance.
- Performance: Haynes 188 has good high-temperature stability and creep resistance, able to maintain stable performance at high temperatures, high stress and harsh environments.
- Welding material grade: Haynes 188 can be welded with ERNiCr-3 (AWS A5.14) or Haynes 188 welding wire.
- Application areas: Haynes 188 is widely used in aerospace, energy, chemical industry, shipping and other fields, especially suitable for high temperature, high stress and corrosive environment parts manufacturing, such as turbine engine blades, combustion chamber parts, gas turbine components, jet engine components.
Add some information about Haynes 188:
- Specific grades: Haynes 188 is also known as UNS R30188, W.Nr. 2.4683 and Haynes 188, among others.
- Welding performance: Haynes 188 has good welding performance and can be welded using TIG, MIG, SMAW and other welding methods. However, it should be noted that adequate preheating and post-heat treatment should be carried out before welding to avoid problems such as cracking and embrittlement in the weld area.
- Haynes 188 has excellent oxidation spalling resistance, good heat stability and creep resistance. As a result, it maintains excellent performance in harsh environments such as high temperatures, high stress and corrosion.
- Haynes 188 has a wide range of applications and is particularly suitable for the manufacture of high-temperature parts and corrosion-resistant parts, such as turbine blades, combustion chamber components, jet engine parts, aero-engine bearings, chemical reactors and industrial furnaces.
- Haynes 188 is particularly widely used in the manufacture of aero-engines and is an important material in jet and turbine engines. It can withstand high temperatures, high stresses and harsh corrosive environments to ensure efficient, stable and safe engine operation.
- Haynes 188 can also be used to manufacture corrosion-resistant equipment such as chemical reactors and industrial furnaces. It has good corrosion resistance in acidic, alkaline and high temperature and other harsh environments, and can effectively protect equipment from corrosion damage.
Overall, Haynes 188 is a high-performance high-temperature alloy with good mechanical properties, corrosion resistance and high-temperature stability. It has a wide range of application prospects in aerospace, energy, chemical and other fields.
Post time: Jul-29-2023
