DIN 1629 is a steel pipes

DIN 1629 is a German industrial standard, which is mainly used to stipulate the manufacturing standards for pipes, containers, and equipment structures. Steel pipes under this standard are suitable for manufacturing various pipes, containers, equipment, pipe fittings and steel structures. Its main steel pipe grades include St37.0, St44.0 and St52.0. These steel pipes have different mechanical properties, such as tensile strength, yield strength and elongation, to meet different engineering needs.

Different grades of steel pipes under the DIN 1629 standard have different chemical compositions. The following are the chemical composition restrictions of some major pands: St37.0: The maximum carbon (C) content is 0.17%, St44.0: The maximum carbon (C) content is 0.21%, St52.0: The maximum carbon (C) content is 0.22 %, silicon (Si) content is maximum 0.55%, manganese (Mn) content is maximum 1.70%, for phosphorus (P) and sulfur (S) content.

The production method of DIN 1629 steel pipe mainly includes the following key steps: smelting, piercing, rolling, heat treatment, straightening and finishing, inspection and warehousing.

Steel pipes under the DIN 1629 standard have a number of notable features that make them widely suitable for industrial applications. Here are some of the main features:

1. Strict control of chemical composition: ensure the performance of steel pipes is stable and reliable. Different grades of steel pipes have specific chemical composition ranges to meet different engineering needs.

2. Good mechanical properties: It has excellent mechanical properties such as tensile strength, yield strength and elongation.

3. High precision and high quality: ensure the dimensional accuracy and surface quality of the steel pipe. This high precision and quality make steel pipes more convenient and reliable during installation and use.

4. Good corrosion resistance and weldability: It has good corrosion resistance and weldability, which allows the steel pipe to maintain stable performance in harsh environments and is easy to perform welding and connection operations.

DIN 1629 has a wide range of applications. It is mainly used to manufacture various pipes, vessels, equipment, pipe fittings and steel structures. Specifically, these steel pipes are widely used in the following fields: Oil and gas industry: used to construct oil pipelines, storage tanks, wellhead equipment, etc. during the extraction, transportation, and processing of oil and natural gas. Chemical industry: In the chemical production process, it is used to transport various corrosive media, such as acid, alkali, etc. Machinery manufacturing industry: In the machinery manufacturing process, it is used as equipment packets, bearing seats and other structural parts. Construction field: In the construction field, it is used to construct steel structures, pidges, tunnels and other projects. Its excellent mechanical properties and durability contribute to building safety. Provides strong protection. It is used to manufacture components for transportation such as ships, railway vehicles, and automobiles, as well as piping systems for power, heating and other industries.