(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
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
1. S700MC steel plate is a low-alloy high-strength steel plate. S700MC steel plate has excellent performance, high strength, good welding performance, and S700M
Quenching can improve the plasticity and toughness of 35CrMo steel and reduce its brittleness, but it often inevitably reduces the strength and hardness of 35Cr
35CrMo 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
For the rolling of 35CrMo 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 35CrMo steel after carburizing
Reason:
a.The concentration of surface penetration layer for 35CrMo steel is too high.
b.35CrM
35CrMo steel is a heat-resistant steel with pearlite structure, which has high thermal strength (δb≥440MPa) and oxidation resistance at high temperatur
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 hig
30CrMnSi steel is a high-strength quenched and tempered structural steel with high strength and toughness, medium cold deformation plasticity, good machinabilit
Q275 steel is a cost-efficient choice for construction projects due to its affordable pricing. It is a low carbon structural steel that conforms to the Chinese
Q235 steel is a budget-friendly option due to its competitive price, making it an economical choice for construction projects. It is a carbon structural steel t
In order to improve the strength and formability of HP295 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 HP295 steel plate:1.There are obvious banded structures in HP295 steel. Due to uneven cooling, the cooling ra
Controlled rolling is an important means to improve the strength and toughness of HP295 steel. It is widely used in industrial production because it has the fol
1. 201 stainless steel and 304 stainless steel are two commonly used stainless steel grades. The mechanical properties, corrosion resistance and toughness of 30
1. 202 Stainless steel and 201 Stainless steel are two models with different materials. In fact, the biggest difference in composition lies in the difference in
201 stainless steel is relatively hard, with a bit of rigidity, and it is easier to crack. 201 stainless steel, with certain acid and alkali resistance, high de
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
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