Characteristics of Plastic Mold Steel：
Wide Range of Steel Types:
The materials used span from general-purpose steels to specialized grades, with dedicated plastic mold steels forming a distinct category. While their chemical compositions are broadly similar to those of alloy tool steels, plastic mold steels exhibit superior metallurgical quality, refined machinability, and enhanced suitability for heat treatment.
Stringent Performance Requirements and Challenging Heat Treatment:
To mitigate deformation or other heat treatment-induced issues during the strengthening and toughening of mold components, it has become common practice to supply plastic mold steels in a pre-hardened state.
Extensive Application of Corrosion-Resistant Steels:
Plastic products manufactured using petrochemical-based raw materials may exhibit varying degrees of corrosiveness. Consequently, corrosion-resistant steels are widely employed in such applications.
Improved Machinability for Certain Steel Grades:
In conjunction with the use of pre-hardened and non-quenched-and-tempered steels, enhanced machinability stands out as a defining characteristic of plastic mold steels.
