What kind of steel is the green oil steel mentioned by the local mold steel shop in Shenzhen?

Although there are many kinds of die steel, the same brand of steel can be used in the past, but it is not used now. There are many possibilities. The domestic standard brands of petroleum steel you mentioned are 9CrWMn and CrWMn steel. At present, the newly improved CrWMn steel and customized CrWMn steel are better. There are many manufacturers and brands, and the price and quality are far from each other.

First of all, heat treatment is more likely to be considered. The technical and price problems of heat treatment will lead to the decline of material properties. After all, heat treatment is energy-intensive processing, and time is equal to burning money. If you pay less, you will reduce the process time and times, unless it is your own heat treatment plant.

If you change a steel supplier, although the brand is the same, the manufacturer and brand are not necessarily the same, and some small-scale material suppliers will switch to materials with similar performance. In addition, your original supplier gave you real oil steel instead of oil steel itself. So what do you expect from the materials? Such as frequency of use and hardness. So that we can estimate which is closer to the characteristics of oil steel, and where is the problem ~ ~