1. Can seamless steel pipes be galvanized?
Seamless steel pipe is a metal pipe with a seamless structure, which is widely used in petroleum, natural gas, chemical industry, electric power, aerospace and other fields. Compared with welded pipes, seamless steel pipes have higher strength and pressure resistance, so they perform well in high-pressure and high-temperature environments. Seamless steel pipe refers to a steel pipe that is made of a whole round steel perforated and has no welds on the surface. It has a wide range of uses. Ordinary galvanized pipes are generally made of welded pipes. So can seamless steel pipes be galvanized?
The answer is yes. Galvanizing is to coat the surface of the steel pipe with a layer of zinc to protect the steel pipe from the zinc layer and make it less likely to rust. Seamless steel pipes are also a type of steel pipes and are also used for galvanizing. Yes, and galvanized seamless steel pipes have better performance than ordinary steel pipes.
2. What is the difference between galvanized seamless steel pipe and galvanized pipe?
Galvanized steel pipes can be called galvanized pipes. Galvanized steel pipes are divided into cold-dip galvanized steel pipes and hot-dip galvanized steel pipes. Cold-dip galvanized steel pipes have been banned, and the latter has been advocated by the country for temporary use. The main differences between galvanized seamless steel pipes and galvanized steel pipes are:
① Different uses
Galvanized seamless steel pipes are mainly used for general structures and mechanical structures. Ordinary galvanized steel pipes are welded pipes. They are generally used for the transportation of medium and low pressure fluid materials such as water, gas, air, oil and heating hot water or steam. They are strictly prohibited on structural parts.
② Different materials
Galvanized seamless steel pipes are made of seamless steel pipes that have been galvanized. They are generally made of high-quality carbon structural steels such as 10, 20, 30, 35, and 45, or low-alloy structural steels such as 16Mn, 5MnV, or 40Cr, 30CrMnSi, 45Mn2, etc. Bonded steel is made of hot or cold rolling.
Ordinary galvanized steel pipes are generally rolled into pipes from steel plates and then welded into shape. They are mostly ordinary carbon steels of Q195, Q215, and Q235.
③ Different physical properties
The tensile strength of galvanized seamless steel pipes is 410Mpa, and that of ordinary galvanized steel pipes is 195-235Mpa. The pressure-bearing capacity and mechanical properties of seamless steel pipes are stronger than ordinary galvanized steel pipes; galvanized steel pipes use welded pipes. The welding seam is its weak link and may explode in harsh environments.
④ Different galvanizing amounts
In comparison, the galvanizing amount of galvanized seamless steel pipe is less than that of galvanized steel pipe, only about 10-50g/㎡.
⑤ Different production processes
Galvanized seamless steel pipes are made from high-quality seamless steel pipes as raw materials, through multiple processes of pressing, drawing and other manufacturing processes, and are finally galvanized. The production process of galvanized steel pipes includes welding and forming of steel pipes, and then hot-dip galvanizing.
⑥ Differences in surface treatment: After the surface of galvanized seamless steel pipe is galvanized, the surface is finer, brighter and more textured. After hot-dip galvanizing, the surface of galvanized steel pipe is not as smooth as seamless steel pipe.
⑦ Prices are different
Since the manufacturing process of galvanized seamless steel pipes is relatively sophisticated and the cost is high, the price is slightly more expensive than galvanized steel pipes.
In general, galvanized steel pipes and galvanized seamless steel pipes are different in terms of production process, performance characteristics, scope of use, price, etc. When we choose to use them, we need to choose the most suitable material according to our own needs.
In general, galvanized steel pipes and galvanized seamless steel pipes are different in terms of production process, performance characteristics, scope of use, price, etc. When we choose to use them, we need to choose the most suitable material according to our own needs.
Seamless steel pipe is a metal pipe with a seamless structure, which is widely used in petroleum, natural gas, chemical industry, electric power, aerospace and other fields. Compared with welded pipes, seamless steel pipes have higher strength and pressure resistance, so they perform well in high-pressure and high-temperature environments. Seamless steel pipe refers to a steel pipe that is made of a whole round steel perforated and has no welds on the surface. It has a wide range of uses. Ordinary galvanized pipes are generally made of welded pipes. So can seamless steel pipes be galvanized?
The answer is yes. Galvanizing is to coat the surface of the steel pipe with a layer of zinc to protect the steel pipe from the zinc layer and make it less likely to rust. Seamless steel pipes are also a type of steel pipes and are also used for galvanizing. Yes, and galvanized seamless steel pipes have better performance than ordinary steel pipes.
2. What is the difference between galvanized seamless steel pipe and galvanized pipe?
Galvanized steel pipes can be called galvanized pipes. Galvanized steel pipes are divided into cold-dip galvanized steel pipes and hot-dip galvanized steel pipes. Cold-dip galvanized steel pipes have been banned, and the latter has been advocated by the country for temporary use. The main differences between galvanized seamless steel pipes and galvanized steel pipes are:
① Different uses
Galvanized seamless steel pipes are mainly used for general structures and mechanical structures. Ordinary galvanized steel pipes are welded pipes. They are generally used for the transportation of medium and low pressure fluid materials such as water, gas, air, oil and heating hot water or steam. They are strictly prohibited on structural parts.
② Different materials
Galvanized seamless steel pipes are made of seamless steel pipes that have been galvanized. They are generally made of high-quality carbon structural steels such as 10, 20, 30, 35, and 45, or low-alloy structural steels such as 16Mn, 5MnV, or 40Cr, 30CrMnSi, 45Mn2, etc. Bonded steel is made of hot or cold rolling.
Ordinary galvanized steel pipes are generally rolled into pipes from steel plates and then welded into shape. They are mostly ordinary carbon steels of Q195, Q215, and Q235.
③ Different physical properties
The tensile strength of galvanized seamless steel pipes is 410Mpa, and that of ordinary galvanized steel pipes is 195-235Mpa. The pressure-bearing capacity and mechanical properties of seamless steel pipes are stronger than ordinary galvanized steel pipes; galvanized steel pipes use welded pipes. The welding seam is its weak link and may explode in harsh environments.
④ Different galvanizing amounts
In comparison, the galvanizing amount of galvanized seamless steel pipe is less than that of galvanized steel pipe, only about 10-50g/㎡.
⑤ Different production processes
Galvanized seamless steel pipes are made from high-quality seamless steel pipes as raw materials, through multiple processes of pressing, drawing and other manufacturing processes, and are finally galvanized. The production process of galvanized steel pipes includes welding and forming of steel pipes, and then hot-dip galvanizing.
⑥ Differences in surface treatment: After the surface of galvanized seamless steel pipe is galvanized, the surface is finer, brighter and more textured. After hot-dip galvanizing, the surface of galvanized steel pipe is not as smooth as seamless steel pipe.
⑦ Prices are different
Since the manufacturing process of galvanized seamless steel pipes is relatively sophisticated and the cost is high, the price is slightly more expensive than galvanized steel pipes.
In general, galvanized steel pipes and galvanized seamless steel pipes are different in terms of production process, performance characteristics, scope of use, price, etc. When we choose to use them, we need to choose the most suitable material according to our own needs.
In general, galvanized steel pipes and galvanized seamless steel pipes are different in terms of production process, performance characteristics, scope of use, price, etc. When we choose to use them, we need to choose the most suitable material according to our own needs.
