30CrMnSi steel heat treatment process specification
30CrMnSi steel is mostly used to manufacture various important parts with high load and high speed, such as gears, shafts, clutches, sprockets, grinding wheel shafts, bushings, bolts, nuts, etc., and is also used to manufacture wear-resistant, low-tempera
Application fields of 30CrMnSi steel
30CrMnSi steel is a widely used steel grade for the manufacture of important parts, such as blades and valve plates of high-pressure blowers, high-speed and high-load grinding wheel shafts, gears, sprockets, shafts, clutches, bolts, nuts, etc.
Characteristics of A302GrB steel plate
A302MGrB steel plate itself has high strength, high toughness, corrosion resistance, impact resistance and weldability. A302MGrB steel plate is often used in the boiler and petrochemical equipment manufacturing industry, such as petrochemical equipment, p
Brief introduction of A302GrB steel plate
1. A302GrB steel plate is a manganese-molybdenum alloy steel plate for American standard pressure vessels. A302GrB pressure vessels must bear different pressure vessels and strengths because the manufactured containers are generally 314Mpa or higher. The
Rolling points of HP325 Steel
In order to improve the strength and formability of HP325 steel and make the products meet the standard requirements, it is essential to design an accurate process parameter for the rolling system. The rolling system is based on reducing the band structur
Causes of Wrinkles on the Surface of HP325 Steel
Through the analysis of the above reasons, it is known that the uniformity of the cooling rate of HP325 steel plate should be improved during hot rolling, at the same time, on the basis of ensuring performance, the cooling rate is appropriately increased,
Advantages of Controlled Rolling for HP325
Controlled rolling is an important means to improve the strength and toughness of HP325 steel. It is widely used in industrial production because it has 7 advantages.
Welding method of SG255 steel
There are many welding methods for gas cylinders, commonly used are electrode arc welding, submerged arc welding, argon tungsten arc welding, and melt inert-gas welding. This article mainly writes about the latter two welding methods.
Points of Purity For SG255 steel
In the manufacturing process, controlling the inclusions and gas content in SG255 steel is the key to welding steel cylinders, and the purity of SG255 molten steel can be improved by taking the three steps.
Cooling process of SG255
Those two-stage cooling process can effectively inhibit the continued growth of ferrite, and can also promote the pearlite phase transformation process of austenite with high carbon concentration, so as to obtain high-quality SG255 steel.
Prospect and application of SM490YB steel plate
SM490YB belongs to a low-alloy high-strength steel, which has the characteristics of good weldability, good plasticity, strong cold and hot deformation ability. Due to its high strength and tensile strength between 490~610MPa, SM490YB steel can be used in
Production process of SM490YB steel plate
The production process of SM490YB steel plate generally include 8 steps.
Cutting process of SM490YA steel
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 steel structure. The technologies currently used include flame cutting, water cutting, plasma
Welding Points of Q355GNH steel
Some points for attention can effectively improve the welding quality and weld strength of Q355GNH weathering steel.
Features of Q355GNH weathering steel
Q355GNH weathering steel has good corrosion resistance, heat resistance and oxidation resistance, as well as good toughness and aesthetics.