Overview: Adding 0.07% B to the steel can significantly improve the hardenability of the steel. Boron added to 18% Cr and 8% Ni stainless steel can make precipitation hardening and improve high-temperature strength and hardness after treatment. In cast iron, boron will affect graphitization, so increase the depth of white cast iron to make it cold, hard and wear-resistant. Adding 0.001% ~ 0.005% boron to malleable cast iron is beneficial to the formation of nodular graphite and the improvement of its distribution. Low aluminum and low carbon ferroboron are the main raw materials of amorphous alloys. According to gb5682-87 standard, ferroboron in China is divided into low carbon and medium carbon, with 8 grades.
Properties
Summary
Adding 0.07% B to the steel can significantly improve the hardenability of the steel. Boron added to 18% Cr and 8% Ni stainless steel can make precipitation hardening and improve high-temperature strength and hardness after treatment. In cast iron, boron will affect graphitization, so increase the depth of white cast iron to make it cold, hard and wear-resistant. Adding 0.001% ~ 0.005% boron to malleable cast iron is beneficial to the formation of nodular graphite and the improvement of its distribution. Low aluminum and low carbon ferroboron are the main raw materials of amorphous alloys.
Manufacturing
