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According to the classification of electric furnace steelmaking power level and the difference of raw materials used for producing Graphite electrodes as well as the physical and chemical indexes of finished product, graphite electrodes are divided into three types: regular power graphite electrodes (RP), high power graphite electrodes (HP) and ultra high power 600mm uhp graphite electrode. Classification of Graphite Electrodes Regular power graphite electrode 600mm (RP): regular power graphite electrodes are produced by ordinary grade petroleum coke. With low graphitization temperature, poor thermal shock resistance and high resistivity, large linear expansion coefficient the allowable current density is low. High power graphite electrode (HP): High power graphite electrodes are produced by high grade petroleum coke. With low graphitization temperature, poor thermal shock resistance and high resistivity, large linear expansion coefficient the allowable current density is low. Ultra-high power graphite electrode (UHP): UHP 600mm graphite electrode must be produced by high-level needle coke, and its graphitization heat treatment should be carried out in the inner series graphitization furnace. The graphitization temperature is as high as 2800-3000 C. Therefore, the resistivity is low, and the linear expansion coefficient is small. It has excellent thermal shock resistance. Needle coke is an important standard to distinguish regular power graphite electrodes from high power and ultra-high-power graphite electrodes. All the 600mm diameter UHP graphite electrode produced by HUARO use 100% needle coke to ensure an excellent quality performance in the steelmaking factory.

Raykol Group is a leading professional supplier focusing on R&D, design and manufacture for automated laboratory equipment and solutions. And we provide pre-sales product selection guide and after-sales technical supports. RayKol's products and systems are applied to sample preparation process in the area of food safety, environmental science, agriculture, pharmaceuticals and life science.

Raykol Auto GDA series Automated graphite digester is designed based on wet digestion theory, it can automatically complete full digestion process including acid adding, mixing, capping, programmed digestion, acid elimination and cooling. Up to 72 samples can be digested automatically in one batch at one time. Auto GDA series is a good choice for sample pre-treatment of heavy metal analysis, which meets the international standards of wet digestion.

Non-metallic Gasket Material refers to a broad category of gasket materials that do not contain metal. These materials, which include rubber, silicone, graphite, and PTFE, are known for their flexibility, adaptability, and excellent sealing capabilities. They can be easily cut and shaped to fit a wide range of applications, from automotive and plumbing to industrial machinery. Some non-metallic gasket materials can withstand high temperatures and resist a variety of chemicals, making them a versatile choice for many sealing needs. The lifespan and environmental impact of these gaskets can vary depending on the specific material and application.