Cold working die steel belongs to one of the three major categories of die steel, which is widely used in mold production. Cold work die steel focuses on hardness, wear resistance and high carbon content. Cold work die steel increases hardenability and wear resistance by adding alloy elements.

因此冷作模具钢适用于制造冲截用的模具（落料冲孔模、修边模、冲头、剪刀）、冷镦模和冷挤压模、压弯模及拉丝模等。冷作模具钢用途如此广泛，那么为了使冷作模具具有更长的使用寿命，冷作模具钢的选择就非常重要了，下面就由小编为大家介绍一下冷作模具钢的选择方法。

Therefore, cold working die steel is suitable for manufacturing blanking and punching dies (blanking and punching die, trimming die, punch, scissors), cold upsetting die and cold extrusion die, bending die and drawing die, etc. Cold working die steel is widely used, so in order to make the cold working die have a longer service life, the selection of cold working die steel is very important. The following is a small series of cold work die steel selection methods for you.

一、按照冷作模具钢的工作条件进行选择

1、 Select according to the working conditions of cold working die steel

冷作模具钢在工作的时候，因为被加工的材料的变形抗力比较大。模具的工作部分承受的压力、弯曲力、冲击力及摩擦力很大。因此为了冷作模具往往因为磨损以及因断裂、崩力和变形超差而提前失效。 因此在选择冷作模具钢时需选择具有高的硬度和耐磨性、高的抗弯强度和足够的韧性的冷作模具钢，用以保证冲压过程的顺利进行。

When cold working die steel is working, the deformation resistance of the processed material is relatively large. The working part of the die bears a lot of pressure, bending force, impact force and friction force. Therefore, in order to cold work, the die often fails in advance due to wear, fracture, collapse force and deformation out of tolerance. Therefore, it is necessary to select the cold working die steel with high hardness and wear resistance, high bending strength and sufficient toughness when selecting cold working die steel, so as to ensure the smooth progress of stamping process.

二、按冷作模具的使用条件进行选择

2、 Select according to the use conditions of cold working die

1.尺寸小、形状简单、轻负荷的冷作模具，适于制造一些尺寸小、形状简单、轻负荷的工具以及要求硬化层不深并保持高韧性的冷像模等。

1. The cold working die with small size, simple shape and light load is suitable for manufacturing some tools with small size, simple shape and light load, as well as the cold image mold with low hardening layer and high toughness.

2.尺寸大、形状复杂、轻负荷的冷作模具，适用于制造一些变形要求严格而硬度要求又不很高的模具。

2. The cold working die with large size, complex shape and light load is suitable for manufacturing some dies with strict deformation requirements and low hardness requirements.

3.尺寸大、形状复杂重负荷的冷作模具，须采用中合金或高合金钢．如Cr12Mo、 Crl2MoV、 Cr6WV Cr4W2MoV等，另外也有选用高速钢的。

3. The cold working dies with large size, complex shape and heavy load must be made of medium alloy or high alloy steel, such as cr12mo, Crl2MoV, cr6wv, Cr4W2MoV, etc. in addition, high-speed steel is also used.

4.受冲击负荷且刀间单薄的冷作模具

4. Cold working die with impact load and thin between tools