S136 injection molding PVC plastic raw materials, the mold quickly rusted, which has plagued the PVC injection molding industry for a long time. Even if the die is chrome plated, it can only make the die rust a few days later; Moreover, the electroplated layer is a very hard hardened layer. Once it is damaged, it is very troublesome to repair. Using m316 die steel, the die will not rust, the die will not be scratched, the service life will be greatly prolonged, and the brighter the die is.

PVC塑胶原料是强酸物质，抗腐蚀能力差，有害杂质多的模具钢，是容易生锈。S136模具钢是空气类不锈钢，在弱酸条件下使用，S136是不会生锈的。再说，现在市场上的S136模具钢，废钢翻新、电炉冒充电渣、以假乱真，防锈性能就更差了。这些劣质S136，在PVC这种残酷环境下工作，就被迫现原形。

PVC plastic raw material is strong acid material, poor corrosion resistance and mold steel with many harmful impurities, which is easy to rust. S136 die steel is air stainless steel. When used under weak acid conditions, S136 will not rust. Moreover, the anti rust performance of S136 die steel on the market is even worse when scrap steel is renovated, electric furnace is pretended to be electroslag, and false is confused with true. These inferior S136, working in the cruel environment of PVC, were forced to show their original shape.

珠海周先生是注塑PVC高透明吸盘产品，用S136H摸芯钢，产品表面好容易岀现气纹，而且模具也有纹影，现产品有纹影的地方，模具模腔好快就会失去光面；电镀了铬，也不了问题，只是时间上的事，生产几日，跟没电镀一样，又要重新抛光

Zhuhai Mr. Zhou is an injection molded PVC high transparent sucker product. Using s136h to touch the core steel, the product surface is good, and it is easy to show gas lines, and the mold also has grain shadow. Where the product has grain shadow, the mold cavity will lose the smooth surface soon; Electroplating chromium can't solve the problem. It's just a matter of time. After a few days of production, it has to be polished again, just like without electroplating. The defective rate of products is very high. What is better to deal with PVC, a strong acid core steel material, and introduce it to me?

经过和详细沟通后，M316模具钢，M316模具钢跟S136H模具钢比较，少有3个优势：

After detaed communication with  m316 die steel is recommended. Compared with s136h die steel, m316 die steel has at least three advantages:

1）M316的铬Cr含量更高，抗腐蚀防锈能力比S136H强，用于PVC塑胶原料，绝不生锈，可以省去电镀工艺。

1) M316 has higher Cr content and stronger anti-corrosion and anti rust ability than s136h. It is used as PVC plastic raw materials and will never rust, so the electroplating process can be omitted.

2）M316模具钢的纯净度比S136H好，镜面抛光性能更强。

2) M316 die steel has better purity than s136h and stronger mirror polishing performance.

3）M316模具钢的耐磨合金比S136H高，硬度可达HRC54-57，耐磨性更强。

3) The wear-resistant alloy of m316 die steel is higher than s136h, the hardness can reach hrc54-57, and the wear resistance is stronger.