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Premium vulcanizing agent 10-50mm is generally used for increasing the sulfur content of gray pig iron or molten iron, too low sulfur in gray pig iron is harmful: poor inoculation effect, poor graphite shape and poor cutting performance.

after a small amount of iron is added in the electric furnace during the production of electric furnace, the ferro sulphur with a particle size of 10-50mm is added to the furnace according to the demand of sulfur, the ferro sulphur is pressed by adding iron, and they are smelted. The absorption rate is above 99%.

 the high efficient ferro sulphur for casting gray iron produced by our company can be used conveniently, safely and reliably with few impurities and high absorption rate up to 95%. Sulfur can be added to gray pig iron for improving the cutting performance, and improving the inoculation effect and graphite shape. Because sulfur can make the length of graphite shorter, the end becomes blunt, the shape is curved, and the mechanical properties of the gray pig iron are improved by resulfurization. It is beneficial to control the sulfur in gray pig iron within the range of 0.08%-0.12%. It is one of the Sulfurizing Agent Products.