Quenching can improve the plasticity and toughness of 30CrMo steel and reduce its brittleness, but it often inevitably reduces the strength and hardness of 30Cr
30CrMo steel belongs to pearlitic heat-resistant steel. It is mainly composed of chromium and molybdenum alloying elements. The alloying element chromium can fo
Carburizing is a heat treatment process in which steel is placed in a medium with sufficient carbon potential and heated to an austenite state and kept warm to
ASTM A242 steel and A588 are both high-strength, low-alloy structural steels used in a variety of outdoor applications. While both offer excellent resistance to
A242 steel plate is a high-strength, low-alloy structural steel plate used in a variety of outdoor applications. It is highly resistant to atmospheric corrosion
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 proc
There are three reasons for the surface wrinkle of HP325 steel plate:1.There are obvious banded structures in HP325 steel. Due to uneven cooling, the cooling ra
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 the fol
The main factors leading to the fracture failure of DH36 steel plate are the serious center segregation and center porosity of the slab, and the presence of abn
·Carbon
The key performance index of DH36 steel plate is the low temperature impact toughness of DH36 steel plate, which requires the impact energy at -2
DH36 steel plate is easily corroded by seawater in the marine environment, so measures need to be taken for corrosion protection. Commonly used anti-corrosion m
30CrMo steel is a heat-resistant steel with pearlite structure, which has high thermal strength (δb≥440MPa) and oxidation resistance at high temperatur
For the rolling of 30CrMo steel plate, the following standard requirements need to be met:
(1) Deviation requirements for thickness, width and length
The thickn
1. Cracks appear on the surface of 30CrMo steel after carburizing
Reason:
a.The concentration of surface penetration layer for 30CrMo steel is too high.
b.30CrM
Cooling of SG255 steel adopts two-stage cooling process. The degree of supercooling can be increased through a period of cooling. When SG255 steel is cooled to
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 st
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
In production and manufacturing, we often encounter the material 42CrMo4 mentioned in the drawings of European countries, it looks similar to 42CrMo. Whether th
42CrMo4 steel plate is a high-strength alloy steel plate, which is widely used in machinery manufacturing, aerospace, automobile manufacturing and other fields.
42CrMo4 steel has high strength, high hardenability, good toughness, small deformation during quenching, high creep strength and durable strength at high temper
The global economic recovery has led to an increase in demand for ST37 steel, driving up its price. As businesses and industries resume operations following pan
ST37-2 steel plate is a low carbon steel grade commonly used in structural applications. The fatigue strength of ST37-2 steel plate depends on several factors i
Pay attention to the following points when welding Q355GNH weathering steel:
1.Select the appropriate welding material and welding process. Q355GNH steel contai
·Good corrosion resistance: Q355GNH 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.Q355GNH steel is prone to breakout
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