Plastic Mold Manufacturing Material Selection Guide

Plastic molds are the most important tools in plastic injection molding, blister molding, and die-casting production. In order to meet plastic manufacturing requirements and environments, such as high temperature, high pressure, corrosiveness, production efficiency, etc., the requirements for mold materials have become very demanding. So choosing the right material is the key to making high-quality plastic molds.

In this article, Universe Plastic Factory will introduce to you the types, names, characteristics, etc. of commonly used materials for manufacturing plastic molds, and teach you how to choose manufacturing materials to meet the needs of plastic molds, including giving professional selection suggestions in terms of cost, performance, maintenance, etc. .

Plastic mold materials

P20 mold steel

Type: Pre-hardened mold steel

Features: The steel is pure, high and uniform in hardness. It has polishing and etching properties and can be directly used to make molds without heat treatment.

718H mold steel

Type: Pre-hardened mold steel
Features: high hardness, wear resistance, an improved version of P20 mold steel

NAK80 mold steel

Type: Pre-hardened - mold steel

Features: high hardness, electro-corrosive, machinability, polishability (greater than 718H mold steel)

2083 mold steel

Type: Corrosion-resistant - mold steel

Features: High hardness, stainless steel features polishability and super corrosion resistance.

S136 mold steel

Type: Corrosion-resistant - mold steel

Features: High hardness, good corrosion resistance, polishability, wear resistance, and machinability.

How to choose plastic mold materials?

When selecting plastic mold materials, in addition to understanding the performance characteristics of plastic mold materials, you also need to choose based on factors such as plastic production quantity, precision requirements, usage environment, mold shape and structure complexity, manufacturing cost and other factors. The following are the selection suggestions of Universe Plastic Mold Engineers:

1. If the production volume is not large, the precision requirements are high

You can choose P20 mold steel, 718H mold steel

2. If the production volume is large and the precision requirements are high, the injection molding material is not corrosive.

You can choose 718H mold steel, NAK80 mold steel

3. If the production volume is large, the precision requirements are high, and the injection molding material is corrosive

You must choose NAK80 mold steel, 2083 mold steel, and S136 mold steel.