Boron-containing iron concentrate powder is the main raw material for producing boron-containing pig iron. Boron-containing pig iron has been widely used in machinery, building materials and mining industries. Boron-containing pig iron is widely used as a boron additive in cast iron and cast steel to produce (resistant) boron-resistant products such as cylinder liners, piston rings, grinding balls, liners, impellers, guide rails, etc. The use of boron-containing pig iron to replace expensive and energy-consuming ferro-boron alloys and precious metals such as tantalum, titanium, manganese and chromium to produce resistant (anti-) milled castings is easy to use, low in cost and good in performance, and is worthy of promotion. Cast material. The development and utilization of boron-containing pig iron is expected to change the structure of China's resistant (anti-) grinding products and form a new boron-resistant (anti-) grinding new industry. In addition, boron-containing pig iron is also used to produce boron cast balls, boron vanadium-titanium cast balls, and boron-chromium cast balls.