Hot cracks are generated at high welding temperatures. When crystallized, the eutectic with low melting point forms a liquid film, which will lead to cracking u
1. A633 high-strength low-alloy structural steel is an American standard steel plate, which is a normalized high-strength steel, A633 steel plate is very suitab
Several factors can influence the fluctuation in ASTM A285 C steel sheet prices. Here are some key factors:1. Raw Material Costs: Fluctuations in the prices of
Q345B seamless steel pipe belongs to hot-rolled and normalized steel, and its main structure is ferrite + pearlite. Q345B seamless steel pipe has high hardness
1. Raw materials
Some Q345B seamless steel pipe factories will choose round steel produced by small steel factories for processing in order to save costs, but t
(1) The high weld seam reinforcement of Q345B seamless steel pipe makes the primary wave flaw detection impossible, and only the triple wave flaw detection can
Casting Technology
There are two mainstream methods for 42CrMo4 smelting and casting, one is electric arc furnace smelting, secondary refining and vacuum degass
Gas in steel is a general term for gases such as oxygen, nitrogen, and hydrogen in the medium absorbed by steel during smelting, welding, or chemical and electr
After the quenching and tempering treatment of 42CrMo4 steel, the inspectors found several small crack defects when visually inspecting the surface quality of 4
After adding phosphorus, copper, chromium, nickel and other trace elements to the Corten B steel, the surface of the steel will form a dense and highly adhesive protective film
Before weathering treatment, we must consider the following three points:
a.The following conditions are not suitable for weathering treatment of Corten B: (1)
A709Gr50 steel plate is a low-alloy high-strength steel plate and is an American standard steel plate for bridges. A709Gr50 steel plate is widely used in the ma
ST37 is a commonly used grade of carbon steel plate known for its good strength and durability. Here are some key aspects of ST37 steel plate specification:1. S
ST52 steel sheet does not generally require any special fabrication techniques. It can be readily fabricated using standard manufacturing processes and techniqu
Q345B large-diameter seamless steel pipe is a long steel material with a hollow cross-section and no joints that is processed by rolling or cold drawing with se
After the Q345B seamless steel pipe is welded, the thermal hardness test of the weld should be carried out. The evaluation standard is that the thermal hardness
A285 GrC is named according to the content of C (carbon) and Mo (molybdenum), which means that the carbon content of this steel plate is about 0.16%, and the co
In the quenching and cooling process of normal quenching and tempering treatment of 42CrMo4 steel, oil cooling quenching or water quenching oil cooling quenchin
Perhaps you know what kind of material S355N is, but do you know any knowledge about hot rolling and flaw detection of S355N?Hot rolling of S355N steel plate:
S
S355N steel plate is a high-strength low-alloy structural steel plate with good strength, toughness and corrosion resistance. Due to its excellent mechanical pr
SM490YB belongs to a low-alloy high-strength steel, which has the characteristics of good weldability, good plasticity, strong cold and hot deformation ability.
The production process of SM490YB steel plate generally include the following steps:
1. Raw material preparation. Firstly, raw materials for smelting need to be
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
When building rail vehicles, during the process of processing, assembling, and welding the components of each part of the car body, due to the existence of stre
In order to produce high-quality S355MC steel, every step has strict requirements. Let's briefly understand the production process of S355MC steel and focus
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