1.Precision seamless steel pipe introduction
Precision seamless steel pipe is a high-precision steel pipe processed by cold rolling or cold drawing. The full name is: cold rolled or cold drawn precision seamless steel pipe. Precision seamless steel pipe has the advantages of no oxide layer on the inner and outer walls, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no cracks in flattening, etc., so it is mainly used to produce pneumatic or hydraulic components. The chemical composition of precision seamless steel pipe is C, Si, Mn, S, P, Cr. The production process of precision steel pipes is the same as that of ordinary seamless pipes, except that there is an additional process of pickling and cold rolling at the end.
2.Precision steel pipe chemical composition
| Grade | C | Si | Mn | S | P | Cr |
| 10# | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | |
| 20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | |
| 45# | 0.42-0.5 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | |
| 40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.08-1.10 |
| 25Mn | 0.22-0.29 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 |
3.Precision seamless steel pipe advantages
This photo is a demonstration of precision seamless steel pipe, which has the following advantages:
1. The outer diameter of the precision steel pipe is smaller.
2. The cold-drawn precision seamless steel pipe has high precision and good surface quality, and can be produced in small batches.
3. Precision seamless steel pipe has the advantages of cold bending without deformation, flattening without cracks, etc.
4. The metal of the precision seamless steel pipe is relatively dense, and the performance is more superior.
4.The difference between precision steel pipe and seamless carbon steel pipe
This picture shows the product map of precision steel pipe and seamless steel pipe, their differences are as follows:
1. The main feature of seamless steel pipe is no welding seam, which can withstand greater pressure. Products can be very rough as-cast or cold drawn.
2. The surface finish of the inner and outer diameter of the precision steel pipe is high, and the customer can use it directly without processing. The ordinary seamless steel pipe needs to be processed by lathe, polishing and so on.
3. Precision steel pipe has higher dimensional accuracy.
5.Precision seamless steel pipe application
This photo is some application scenarios of precision seamless steel pipe.
Precision steel pipes have high precision, good finish, and are not easily deformed, so they are often used to manufacture various hydraulic components. Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, seamless steel pipes for medium and low pressure boilers and other industries, as well as steel sleeves, bearings, hydraulic, machining, etc. field.
HDT tubing is a precision seamless steel pipe manufacturer for Vietnam
HDT Tubing Co.,Ltd (https://www.hdtsteel.com) is a professional precision seamless steel pipe manufacturer in China. The company has advanced production equipment, strong technical strength and perfect after-sales service. The precision seamless steel pipe products are well stocked and the quality is guaranteed.
The Vietnam is the main export market of our company's precision steel pipe products. Our company provides the best quality products and the best price, and provides 24-hour online service to solve customer problems in a timely manner.
