Forging process: After heating the zirconium ingot to an appropriate temperature, it is forged on a press to form the shape of a flange. The forging process can improve the density and mechanical properties of zirconium, making the flange denser and stronger.

Casting process: Pour melted zirconium metal into a pre made mold, cool and solidify to form a flange. The casting process can produce flanges with complex shapes, but due to defects such as porosity and shrinkage during the casting process, strict process control measures need to be taken to ensure the quality of the flanges.

Mechanical processing technology: Machining operations such as turning, milling, drilling, etc. are performed on zirconium billets after forging or casting to obtain flange dimensions and accuracy that meet design requirements. Mechanical processing technology can ensure the dimensional accuracy and surface quality of flanges, but it will increase production costs and processing time.

Here are some common zirconium flange grades:

Mark according to international standards or general specifications

R60702： This is a widely recognized and applied zirconium alloy flange grade. Its corresponding zirconium alloy composition has good corrosion resistance, especially in some medium strength acidic and alkaline corrosive media environments. In the field of chemical engineering, pipeline connections are commonly used for transporting and processing chemical raw materials with certain corrosiveness; In the pharmaceutical industry, it can be used to connect pipeline systems that come into contact with corrosive liquids during drug production.

R60705： Similar to R60702, it is also a common grade for zirconium alloy flanges. Its alloy composition may have slightly improved strength compared to R60702, while maintaining good corrosion resistance. It is commonly used in situations where flange strength and corrosion resistance are required, such as in the connection of inlet and outlet pipelines of high-temperature and high-pressure chemical reaction vessels, or in the power industry for the connection of pipelines for certain corrosive cooling media.