Tag: stainless steel pipe

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 […]

Characteristics, welding technology and requirements of stainless steel pipe fittings

Stainless steel pipe fittings are one kind of pipe fittings. They are made of stainless steel, so they are called stainless steel pipe fittings. They include: stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel caps, etc., according to the coupling method. It is divided into four types: socket type stainless […]

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 […]

Material selection for chemical pipelines

There are many factors affecting the choice of pipeline materials: process design conditions, material properties, economy, processability, contamination of the final product, process safety, corrosion resistance, etc. Cast iron pipe: Ordinary cast iron pipe: It is mainly used for water pipe, gas main pipe, sewage pipe, etc. buried in the ground, which has good corrosion resistance […]

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 […]

Cleanliness testing technology of stainless steel pipe

The cleanliness of stainless steel pipe refers to the degree of contamination of the steel pipe by impurities. It is expressed by the quality, size and quantity of the impurity particles collected from the specified characteristic parts by a prescribed method. The “prescribed part” refers to the characteristic part that jeopardizes the reliability of the product. “Impurities” […]

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