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How to choose the photovoltaic bracket?
At present, the main anti-corrosion method of photovoltaic bracket steel using hot dip galvanized 55-80μm, aluminum alloy using anodic oxidation 5-10μm. Aluminum alloy in the atmospheric environment, in the passivation zone, its surface forms a layer of dense oxid...Read more -
How many types of galvanized sheets can be classified according to production and processing methods?
Galvanized sheets can be divided into the following categories according to production and processing methods: (1) Hot dipped galvanized steel sheet. Thin steel sheet is immersed in a molten zinc bath to make a thin steel sheet with a layer of zinc adhering to its surfac...Read more -
What is the difference between the European H-beam types HEA and HEB?
H-beams under European standards are categorized according to their cross-sectional shape, size and mechanical properties. Within this series, HEA and HEB are two common types, each of which has specific application scenarios. Below is a detailed description of these two...Read more -
Standards and Models of H-beams in Various Countries
H-beam is a kind of long steel with H-shaped cross-section, which is named because its structural shape is similar to the English letter “H”. It has high strength and good mechanical properties, and is widely used in construction, bridge, machinery manufacturing and othe...Read more -
Varieties and specifications of steel
I. Steel Plate and Strip Steel plate is divided into thick steel plate, thin steel plate and flat steel, its specifications with the symbol “a” and width x thickness x length in millimeters. Such as: a 300x10x3000 that the width of 300mm, thickness of 10mm, length of 300...Read more -
What is the nominal diameter？
Generally speaking, the diameter of the pipe can be divided into outer diameter (De), inner diameter (D), nominal diameter (DN). Below to give you a distinction between these “De, D, DN” difference. DN is the nominal diameter of the pipe Note: This is neither the outside...Read more -
What is hot-rolled, what is cold-rolled, and the difference between the two？
1. Hot Rolling Continuous casting slabs or initial rolling slabs as raw materials, heated by a step heating furnace, high-pressure water dephosphorization into the roughing mill, the roughing material by cutting the head, tail, and then into the finishing mill, th...Read more -
Processes and Applications of Hot Rolled Strips
Common specifications of hot rolled strip steel Common specifications of hot rolled strip steel are as follows: Basic size 1.2～25× 50～2500mm General bandwidth below 600mm is called narrow strip steel, above 600mm is called wide strip steel. The weight of the strip c...Read more -
Thickness of color coated plate and how to pick the color of color coated coil
Color coated plate PPGI/PPGL is a combination of steel plate and paint, so is its thickness based on the thickness of the steel plate or on the thickness of the finished product? First of all, let's understand the structure of color coated plate for construction: (Image...Read more -
Characteristics and Uses of Checker Plate
Checker Plates are steel plates with a specific pattern on the surface, and their production process and uses are described below: The production process of Chequered Plate mainly includes the following steps: Selection of base material: The base material of Chequered Pl...Read more -
Advantages of corrugated metal pipe culvert application in highway engineering
Short installation and construction period Corrugated metal pipe culvert is one of the new technologies promoted in highway engineering projects in recent years, it is 2.0-8.0mm high-strength thin steel plate pressed into corrugated steel, according to different pipe dia...Read more -
Heat treatment processes – quenching, tempering, normalizing, annealing
Quenching of steel is to heat the steel to the critical temperature Ac3a (sub-eutectic steel) or Ac1 (over-eutectic steel) above the temperature, hold for a period of time, so that all or part of the austenitization, and then faster than the critical cooling rate of the ...Read more
