Casting Technology
There are two mainstream methods for 50CrMo4 smelting and casting, one is electric arc furnace smelting, secondary refining and vacuum degass
The grades of S420MC and QSTE420TM are similar, even in some steel plants, they can be used in common. Both S420MC and QSTE420TM require good cold forming perfo
QStE380TM is a low alloy steel with a series of excellent physical and chemical properties, widely used in the manufacture of automobiles, construction machiner
The cold rolling of QSTE420TM steel usually adopts longitudinal rolling, and the production process of cold rolling generally includes raw material preparation,
Q460D belongs to low-alloy high-strength structural steel, and Q460D can also be called low-temperature-resistant high-strength steel with a yield strength of 6
According to the properties of Q460D steel, the author summarizes the following key points of the welding process:
1.Preheating work. The structural parts of th
In order to obtain good mechanical properties, many high-strength steels use a combination of multiple heat treatment methods. For Q460D steel, the suitable hea
Boiler steel plate A515 is available in different grades, including A515 Grade 60, A515 Grade 65, and A515 Grade 70. The tensile strength of these grades varies
ASTM A285 grade A steel does not have specific heat treatment requirements outlined in the standard specification. A285 grade A is a low to intermediate tensile
1. Processing technology: This is also one of the factors that cause oxidation of Q345B thick-walled seamless pipes. From the perspective of manufacturing techn
According to the production method, Q345D seamless steel pipe can be divided into: hot rolled seamless pipe, cold drawn pipe, precision steel pipe, thermal expa
The material of Q345B seamless steel pipe is relatively strong and durable. For the rust removal of Q345B seamless steel pipe, it is necessary to master certain
Due to the factors of different regions, environments and climate, the time for forming a stable oxide film on the surface of 09CuPCrNi-A also varies greatly. I
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
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