The role of various chemical elements in 15CrMo alloy steel pipe
15crmo alloy steel pipe is a kind of seamless steel pipe. Its performance is much higher than that of ordinary seamless steel pipe. Because this steel pipe contains more Cr, its high temperature resistance and corrosion resistance are not comparable to ot
The differences between high pressure boiler pipe and low and medium pressure boiler pipe
1. Different working environmentLow and medium pressure boiler pipe: the working pressure is generally not more than 5.88Mpa, and the working temperature is below 450℃;High-pressure boiler pipe: the working pressure is generally above 9.8Mpa, and the work
What are the differences between 20#seamless steel pipe and 20G seamless steel pipe
20#seamless steel pipe and 20G seamless steel pipe are both carbon structural steels with an average carbon content of 0.20%. There are big differences between 20#seamless steel pipe and 20G seamless steel pipe in terms of implementation standards, chemic
The differences between Q235B steel and 20#steel
1. Different chemical composition20#steel chemical composition: C: 0.17-0.23%; Si: 0.17-0.37%; Mn: 0.35-0.65%; Cr: ≤0.25%; Ni:≤0.30%; Cu: ≤0.25%.Q235B steel chemical composition: C:≤0.20%; Si:≤0.35%; Mn:≤1.40%; P:
What is P265GH steel plate
P265GH steel plate belongs to European standard pressure vessel steel plate. P265GH steel plate is a non-alloy quality steel with high temperature function, fulfilling the specification: EN10028-2. P265GH steel plate has outstanding plasticity, resistance
What are the differences between 15crmo steel and 20crmo steel?
1. Difference in chemical composition:The chemical composition of 15crmo steel: C: 0.12-0.18 Si: 0.17-0.37 Mn: 0.40-0.70 Cr: 0.80-1.10 Mo: 0.40-0.55The chemical composition of 20crmo steel: C: 0.17-0.24 Si: 0.17-0.37 Mn: 0.40-0.70 Cr: 0.80-1.10 Mo: 0.15-0
Five characteristics of distinguishing good and bad steel
When buying steel, how do we distinguish between good and bad steel?1、Fake and inferior steel are prone to folding: folding is a variety of fold lines formed on the surface of the steel, and this defect often runs through the longitudinal direction of the
Comparison of 15CrMo steel and 45 steel
1. Different concepts15CrMo alloy structural steel is a heat-resistant steel with a pearlite structure. It has high endurance strength below 500-550°C, good workability and cold strain plasticity, and good weldability.45 steel belongs to carbon st
How to distinguish Q235 steel and Q345 steel?
The appearance of Q235 steel and Q345 steel are almost the same. The color difference has nothing to do with the material of the steel, but is caused by the different cooling method after the steel is rolled. Under normal circumstances, the surface of the
Advantages and disadvantages of hot rolled steel
By definition, steel ingots or billets are difficult to deform and process at room temperature. They are generally heated to 1100°C to 1250°C for rolling. This rolling process is called hot rolling. Most steels are rolled by hot rolling. T
What are the differences between Q355NH steel and Q355GNH steel
Q355NH is a weather resistant structural steel. It is a low-alloy steel series between ordinary steel and stainless steel. It is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. Q355NH steel has
Comparison of ordinary carbon steel and high-quality carbon steel
According to different steel quality, carbon steel can be divided into ordinary carbon steel and high-quality carbon steel. So what are the differences between the two?Ordinary carbon structural steel has wide restrictions on carbon content, performance r
Take you to understand the performance and use of angle steel
Angle steel is usually called an angle iron. It is a long strip of steel with two sides perpendicular to each other. Angle steel is composed of various load-bearing components and can also be used as a connection between components. Angle steel is widely
Three performance principles for choosing NM500 abrasion resistant steel plate
1. The principle of equal strengthNM500 abrasion resistant steel plate is generally used for welding low carbon steel and low alloy steel. For workpieces or structures that bear static or general loads, steel plates with the same tensile strength as the b
What are the quality requirements for seamless steel pipes?
1. Chemical compositionRequirements for the contents of harmful chemical elements As, Sn, Sb, Bi, Pb and gases such as N, H and O are put forward. In order to improve the uniformity of the chemical composition in the steel and the purity of the steel, red