Classification of petroleum casing pipe with steel material made

According to the data, under dynamic condition, the brittle tendency of material will be increased, and the dynamic fracture toughness K I d is a method to solve the oil casing fracture under high energy impact load. Thus, for those steel pipes applied in oil casing, like the seamless steel pipe, should have a clear category in order to know exactly the function and application places they are.

Generally speaking, casing pipe and tube would have the following models.

Large-sized oil casing would be one of them. We can get it that it has large size according to the name. We all know that seamless steel pipe has the certain diameter when we choose it; however, ERW steel pipe doesn't have this limit. So we can decide the diameter and then figure out the material we need to produce the casing pipe.

ERW casing pipe is another type which is different from seamless steel pipe in material chosen.

Economic type oil casing would be the one suitable for those clients who want to save some cost and the application is also good for the economic type.

High-strength oil casing is one can be applied in the deep sea for its high quality and high pressure taking.

J55 class oil casing would be contain the specific model for customers. And 36Mn2V oil casing would be the one of the tops on oil casing.