The process method for aluminium circle falls on three types: stretch, die-casting and anodizing, and aluminum circle pressure cooker is obtained by die-casting. By thickness it belongs to the thick type, more suitable for boiling soup for a long time. Pressure cooker aluminium circles are slower in heat conductivity, for they contain numerous micro holes in the inner structure.
By alloy types there are pure industrial aluminium circles and alloyed aluminum disc circles. Industrial ones include 1050, 1060, 1070 and 1100, which are not fitted to be made into high pressure cookers owing to weak hardness and corrosion resistance. Alloyed circles, incorporating 3003, 5052, 3004 and 6061, prove to be appropriate materials for pressure cookers. Thickness for these circles ranges between 1.0mm and 5.0mm, and tempers cover O, H22, H24 and H18. The most popular among these are 3000 and 5000 series of circles featured by proper hardness, tensile strength and erosion resistance. In particular, 5052 aluminum circle shows excellent anodizing effect. The anodized aluminium circle discs are coated with an anodizing film keeping the aluminium icons away from possible access to elements in the food.
Pressure cooker aluminium circle price is a little higher than that for regular industrial circles, ranging from $2300 to $2600 per metric ton. Usually the circles are anodized or coated. The hard anodizing film and coating cover are durable and safe, greatly enlarges the application scope of aluminum circle pressure cooker. As an aluminium disc circle supplier, Haomei overshadows other alu circle suppliers in strict quality control and high precision of raw materials. We adopt superior aluminum circle blanks and highly automatic cutting lines, guaranteeing both efficiency and quality of our aluminum circle for pressure cookers. Welcome to contact us at sarah@aluminium24.eu for a price! You can also leave messages at “contact us”!