Steel Knowledge

The purpose of anti-corrosion treatment of steel pipes is to extend their service life, protect them from environmental factors, and avoid economic losses and safety hazards caused by corrosion. The specific reasons include the following: Extend life: Anti-corrosion treatment can significantly extend the service life

In the manufacture of metal facilities, hot-dip galvanizing and cold-dip galvanizing are two commonly used manufacturing processes. As a metal anti-corrosion method, hot-dip galvanizing usually puts the steel structure to be derusted into the molten zinc at about 500 °C, so that the zinc layer

There are many anti-corrosion processing technologies for steel pipes. The following are some common anti-corrosion treatment methods: Coating anti-corrosion: Epoxy resin coating: Epoxy resin has good adhesion and corrosion resistance, and is often used for internal and external corrosion protection of oil and gas pipelines.

Straight seam welded pipe (LSAW) and spiral welded pipe (SSAW) are two common types of welded steel pipes, which are widely used in oil and gas transportation, construction, infrastructure and other fields. Straight seam welded pipe (LSAW) Production process 1. Raw materials: steel plate or

A honed tube is a steel tube with a precision-processed inner surface, which has a high-precision inner diameter and good surface finish. Its main feature is that the inner surface is processed by a honing process, and is usually used in situations where a high-precision,

Q235 is a common carbon structural steel widely used in China. In the 88 version, Q235 is divided into four grades: A, B, C, and D according to quality grade. In addition to the composition (mainly the element content changes, with the increase of the

To answer this question, we need to understand the difference between low carbon steel and high carbon steel According to the chemical composition of steel, it can be divided into two categories: carbon steel and alloy steel. Carbon steel is further divided into: ① Low

20# steel is a high-quality low-carbon steel, cold extruded carburized hardened steel with low strength, good toughness, plasticity and weldability, tensile strength of 355~500Mpa, and elongation of 24%. 20# is used for metal structures and components working at -40℃ to +450℃. Hot-rolled and forged long