1. Welded steel pipe for low-pressure fluid transportation (GB/T3092-1993) is also called general welded pipe, commonly known as black pipe. It is a welded steel pipe used for conveying general lower pressure fluids such as water, gas, air, oil and heating steam and other purposes. The thickness of

In the rolling of precision seamless steel tubes, especially in the production process of precision seamless steel tubes, how did the pickling process actually proceed? Today Raymond steel tube will soon unveil this mystery for you!1. Summary of precision seamless steel pipe picklingThe method of re

Isotherm quenching is one of the effective quenching methods to reduce the deformation and cracking of seamless steel tubes. However, how to adopt this process correctly is to make reasonable selection according to the material, size, hardness, toughness, deformation and specific working conditions

30CrMo is a kind of alloy steel. It is with high static strength, fatigue limit and impact strength. So it is be used for making sucker rod.30CrMo is middle carbon alloy steel. It has good technical and mechanical properties and the price is more competitively price. But 30CrMo performance is unstab

During the “Twelfth Five-Year Plan” period, the output of seamless steel pipes in China increased rapidly, reaching 60% of the world's total output. China's steel pipe industry provided Important raw materials for the national energy, construction, machinery, automobiles, home appliances, shipbuildi

With the gradual improvement of the international trade organization, the world's major countries will face different opportunities and challenges, especially after China's reform and opening up, not only in the WTO in 2001, but also continuously improve China's participation in the World Trade Orga

When the precision seamless steel pipe is deformed because of the external factors (such as force, humidity, temperature field, etc.), the internal forces that interact with each part of the object are produced to resist the effect of the external cause, and try to restore the object from the post d