Alloy steel pipes are steel pipes defined according to the materials used for production (that is, materials). As the name suggests, they are pipes made of alloy.
The materials of alloy steel pipes are roughly: 16-50Mn, 27SiMn, 40Cr, 12-42CrMo, 16Mn, 12Cr1MoV, T91, 27SiMn, 30CrMo, 15CrMo, 20G, Cr9Mo, 10CrMo910, 15Mo3, 15CrMoV, 35CrMoV, 45CrMo, 15CrMoG, 12CrMoV, 45Cr , 50Cr, 45CrNiMo, etc.
Alloy seamless steel pipe
The uses of alloy steel pipes are:
Used for heating surface pipes of low and medium pressure boilers (working pressure is generally not greater than 5.88Mpa, working temperature is below 450°C).
Used for heating surface pipes, economizers, superheaters, reheaters, petrochemical industry pipes, etc. of high-pressure boilers (working pressure is generally above 9.8Mpa, working temperature is between 450°C and 650°C).
Used in nuclear power plants, power plants, high-pressure and high-temperature pipelines, and high-pressure boiler equipment.
Used for high pressure and high temperature pipes.
Used to transport fluids such as oil and gas.
The advantages and disadvantages of alloy steel pipes are as follows:
advantage:
①Good corrosion resistance: Alloy steel pipes have excellent corrosion resistance. The thin and strong oxide film on the surface of alloy steel pipes makes the corrosion control level of stainless steel exceed IP68 in all water qualities. It can ensure the cleanliness of water quality even if it is used underground. .
②High mechanical strength: The yield strength of alloy steel pipes is more than twice that of ordinary low-carbon seamless pipes.
③Long service life: 304L is 3 times longer than ordinary carbon steel plates.
④Good wear resistance: Its wear resistance is more than 7 times that of manganese steel.
⑤Not easy to scale.
⑥Resistant to high temperature oxidation.
⑦The gloss is extremely high after internal and external polishing.
