S420ML steel plate is a material used in structural engineering. Its materials include carbon, silicon, manganese, sulfur, phosphorus, chromium, copper, molybde
Perhaps you know what kind of material S420ML is, but do you know any knowledge about hot rolling and flaw detection of S420ML?Hot rolling of S420ML steel plate
S420ML steel plate is a European standard high-strength structural steel plate, which belongs to rolling and weldable fine-grained structural steel. S420ML stee
The cold rolling of QSTE500TM steel usually adopts longitudinal rolling, and the production process of cold rolling generally includes raw material preparation,
QSTE500TM is a low alloy steel with a series of excellent physical and chemical properties, widely used in the manufacture of automobiles, construction machiner
QSTE500TM steel and BW300TM steel are two different steels with different properties and uses. Here are some differences between them:1. Material grade
QSTE500T
Steel plate cutting generally refers to the process of mixing industrial gas and oxygen to reach the cutting temperature, melting, blowing slag and dividing the
The surface of the A242 Type1 steel plate shall not have cracks, knots, folded air bubble inclusions and delamination, etc., which are harmful to use. If there
When brown spots appear on the surface of A242 Type1 weathering plate, people will exclaim, "This must be a fake, A242 Type1 weathering plate will not rust." In
Pay attention to the following points when welding Q265GNH weathering steel:
1.Select the appropriate welding material and welding process. Q265GNH steel contai
·Good corrosion resistance: Q265GNH steel contains more copper, chromium, nickel and other alloying elements, which can form a dense passivation layer to
The continuous casting process is fully protected, and steel plate mold slag for container steel is added to the crystallizer.Q265GNH steel is prone to breakout
Since Q390 steel is a low-alloy high-strength steel, when welding high-strength steel, generally the material with the same strength as the base metal should be
Q390 steel has excellent comprehensive mechanical properties, excellent weldability, cold and hot workability, and corrosion resistance. In addition, Q390 steel
Submerged arc welding is a kind of high-efficiency welding method, and the most widely used in actual production is twin-wire submerged arc welding. For the Q39
According to the sources, the inclusions in X65 pipeline steel can be divided into two categories: endogenous and exogenous. Among them, the endogenous inclusio
Inclusions in X65 pipeline steel mainly exist in the form of non-metallic compounds, such as oxides, sulfides, nitrides, etc. Non-metallic inclusions have a gre
The performance of X65 pipeline steel mainly depends on its chemical composition and structure. Inclusions in X65 pipeline steel mainly exist in the form of non
The thickness of NM550 steel plate is usually between 6-80mm, and the common specifications are 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, etc. Different thicknesses ar
(1) Preheating measures are taken before welding to ensure that the preheating temperature of NM550 wear-resistant steel plate is ≥ 200 °C.(2) The NM550
NM550 wear plate has excellent cutting performance. Due to its high hardness, carbide tools and tool coatings are required for cutting to ensure cutting efficie
30CrMnSi steel has good mechanical properties and good weldability because it does not contain the rare element nickel, and is widely used in steel parts for sh
The heat treatment process of quenching between Ac1 and Ac3 is called sub-temperature quenching. Sub-temperature quenching can improve the impact performance of
1. Material preparation
First of all, it is necessary to test the chemical composition of 30CrMnSi steel to ensure that it meets the requirements of relevant st
Due to the sensitivity of S700MC steel to high temperature, what is the advantage of lowering the rolling temperature for S700MC steel during hot rolling?(1)Red
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