Tag: Stainless Steel Pipes Manufacturer

Stainless steel pipe weld formation defects and causes of defects

Common weld molding defects in stainless steel pipes include incomplete penetration, unmelted table, burn through, undercut and weld. The cause of these defects is often caused by improper groove size, improper selection of welding process specifications, or misalignment of the weld wire to the center of the weld. Incomplete penetration: The phenomenon that the joint root is […]

Stainless steel welding eight items pay attention to the nine problems!

1. Chromium stainless steel has certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. Usually used in power plant, chemical, petroleum and other equipment materials. The chrome stainless steel has poor weldability, and attention should be paid to the welding process and heat treatment conditions. 2. Chromium 13 stainless steel is harder after […]

Application of high performance stainless steel tube for nuclear power

In recent years, the quality, performance and greening level of China’s key basic steel new materials have been significantly improved. The development of new materials industry has also provided a new opportunity for the transformation and upgrading of iron and steel enterprises. At the same time, steel enterprises must also establish a sound upstream and […]

Types, classification, quotation and characteristics of commonly used stainless steel pipes

Stainless steel pipe is a kind of hollow long steel. which is used as a pipeline for conveying fluids. such as oil. natural gas. water. gas. steam. etc. In addition. when the bending and torsional strength are the same. the weight is light. so Widely used in the manufacture of mechanical parts and engineering structures. Also […]

Application of stainless steel pipe in petroleum and petrochemical

1 Types of stainless steel According to the chemical composition, stainless steel can be divided into Cr stainless steel, Cr-Ni stainless steel and Cr-Ni-Mo stainless steel. According to the application field, it can be divided into medical stainless steel, atmospheric corrosion resistant stainless steel, anti-oxidation stainless steel, and Cl-resistant stainless steel. However, the most commonly used classifications […]

Technical research on intergranular corrosion performance of TP321 stainless steel seamless pipe

Intergranular corrosion of stainless steel is a phenomenon of corrosion damage, which is manifested by the loss of bonding force between grains, so that the strength of the material deteriorates. There are many different theories for the cause of intergranular corrosion, such as chromium-depleted theory, grain boundary adsorption theory, precipitation phase metastable theory, metastable phase […]

The method of identifying the poor quality stainless steel pipe

The stainless steel pipe in the passivated state still has a certain reaction ability because its passivation film is always in a state of dynamic equilibrium of dissolution and repair and repassivation. When the stainless steel pipe is in an environmental medium containing active anions, the equilibrium state is easily destroyed, and the dissolved state at this […]

What are the problems that the stainless steel pipe will encounter in welding

When welding stainless steel pipes, the requirements for the welding process are very high, because when welding them, many problems need to be solved, such as heat treatment, cold shrinkage and thermal expansion, and also attention should be paid to on-site construction. Let’s talk about their solutions in detail. The first is the construction capability. Welding […]

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