Classification of mould steels:Cold working steels、Hot mould steels、Plastic mould steels.

1、Cold working mould steels

Such as AISI O1 Tool Steel、AISI D2 Tool Steel、JIS DC53 Tool Steel、JIS SKD11 Tool Steel

Cold working mould steel is mainly used to manufacture the die for pressing the workpiece in the cold state.

Such as cold blanking die, cold stamping die, cold drawing die, embossing die, cold extrusion die, thread pressing die and powder pressing die.

Cold working die steels range from carbon tool steels, alloy tool steels, high speed tool steels to powder high speed tool steels and powder high alloy die steels.

2、Hot mould steels

Such as DIN 1.2344 Tool Steel、AISI H13 Tool Steel、JIS SKD61 Tool Steel

Hot working die steel is mainly used to manufacture the die which is used to press the workpiece under high temperature condition.

Such as hot forging die, hot extrusion die, die casting die, hot upsetting forging die, etc.

The commonly used hot die steels are: medium and high carbon content alloy die steels with Cr, W, Mo, V and other alloying elements added;

Hot die steels with special requirements are sometimes made of high alloy austenitic heat resistant die steels.

3、Plastic mould steels

Such as 1.2738 Tool Steel、AISI P20 Tool Steel、DIN 1.2311 &1.2312 tool Steel

As a result of the variety of plastic, the requirements of plastic products are also very different, the production of plastic mold materials also put forward a variety of different requirements.

Therefore, many industrial developed countries have formed a wide range of plastic mold steel series.

It includes carbon structural steel, carburized plastic mold steel, pre-hardened plastic mold steel, aging hardened plastic mold steel, corrosion-resistant plastic mold steel, easy-to-cut plastic mold steel, overall hardened plastic mold steel, martensitic aging steel and mirror polishing plastic mold steel.

Ms Sharon Wan

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