Metal for Plastic Injection Molds: A Buyer Guide

Metal for Plastic Injection Molds: A Buyer Guide

Short answer: Injection moulds use pre-hardened P20 and hardened H13 for cores and cavities, stainless 420 for corrosive resins, beryllium copper for fast-cooling inserts and aluminium for prototypes, chosen for hardness, polishability, dimensional stability and thermal performance.

At a Glance

Metal for Plastic Injection Molds: A Buyer Guide chart
Figure 1 – Metal for Plastic Injection Molds: A Buyer Guide overview.

What a Mold Needs

Hardness, polish and stability keep the part dimension, with the basis in our Hardness Comparison dan Yield and Tensile Guide; heat duty in our Heat Treatment Guide.

Cores, Cavities and Steel

P20 and H13 are the workhorses, with tool steel detail in our Tool Steel Supplier and machining in our Machining Guide; finish in our Surface Roughness Guide.

Cooling and Corrosive Resin

Beryllium copper inserts pull heat fast and stainless 420 resists corrosive resin, with alloy data in our Nickel Alloy Grades Guide and copper in our Copper Supplier.

Sourcing and Spec

Mould makers confirm hardness and certification via our Mill Test Certificate Guide; packing is in our Export Packing Guide.

Get a Quote

Tell HXSCO your requirements and we will respond with a competitive quote and lead time.

Pertanyaan yang Sering Diajukan

Which steel for injection molds?

Pre-hardened P20 for general use and hardened H13 for high-volume hot molds.

Why stainless mould steel?

Stainless 420 resists corrosive resins and keeps a clean cavity.

What is beryllium copper used for?

Fast-cooling inserts that cut cycle time at hot spots.

Which metal for prototypes?

Aluminium 7075 is fast and cheap for prototype and low-run molds.

How is hardness controlled?

Through heat treatment and verified by certificate and hardness test.

Source Mold Metal with HXSCO

HXSCO supplies P20, H13, stainless 420, beryllium copper and prototype aluminium for injection moulds. Send your steel grade and hardness for a quote.

Request a Quote