1.2311 (P20) plastic mould steel is one of the most widely used pre-hardened steels for mold making. It offers a balanced combination of strength, toughness, and machinability, typically delivered in a pre-hardened condition (28–34 HRC), eliminating the need for additional heat treatment. This steel is particularly suitable for medium-sized molds used in automotive interiors, consumer products, and structural plastic components. As an experienced China manufacturer and supplier, ShengHe Metal ensures consistent chemical composition and uniform hardness across large sections.
Selecting a reliable supplier is critical for ensuring mold durability and processing efficiency. ShengHe Metal provides high-quality P20 steel with excellent polishability and low segregation. Backed by advanced forging presses and ESR refining, our production guarantees internal cleanliness and improved performance. Learn more about our capabilities on our About Us page. Our team also supports customized cutting and machining services to meet exact project specifications. Whether for export or domestic use, we deliver dependable material solutions.
For premium P20 plastic mould steel from a trusted China supplier, don’t hesitate to Contact Us and get a competitive quotation.
