Precision seamless steel pipe is a high-precision steel pipe after cold rolling or cold drawing; full name: cold-rolled or cold-drawn precision seamless steel pipe. Because the inner and outer walls of precision seamless steel tubes have no oxidation layer, high pressure and no leakage, high precisi

20# seamless steel pipe is mainly used in what place, some materials manufacturers, material units to this problem is not clear, today RAYMOND precision seamless steel pipe manufacturers to this issue a systematic summary of the problem. 20# seamless steel pipe belongs to universal carbon steel seam

In the conventional manufacturing process for the hot-rolled seamless steel pipe, the pipe as rolled was air-cooled down to the ambient temperature. And due to absence of proper on-line microstructure control of the pipe, properties had to be controlled depending on addition of much more alloy eleme

In the production of 15Mn seamless steel tube with hot rolling process, the pipe body has obvious banded structure．15Mn seamless steel pipe, in the metallographic examination found that the matrix exists ribbon structure. Why does this happen?Steel tube production process: Converter smelting → LF fu

Small diameter seamless steel pipes refer to seamless steel pipes with a diameter of ≤ 159 mm. According to the different production equipments, it is divided into three grades: diameter Φ76 mm, Φ76~114 mm and Φ114~159 mm. Small-diameter seamless steel tubes are widely used, including general-purpos

When we buy seamless steel tubes, there are always signs and symbols on the surface and surface of seamless steel tubes. What do these signs mean? Are the steel tube signs of different material processes different? Today, Raymond precision seamless steel pipe will explain the meaning of

There is a so-called fluid tube in the market, which is actually a processed high frequency welded pipe. The process is to remove or grind off the original weld with a special equipment, and one is to heat the welded pipe. Some illegal businesses use such pipes to deceive our material personnel,