Черная труба из углеродистой стали представляет собой сталь без покрытия., также известный как черная сталь. Темный цвет обусловлен оксидом железа, который образуется на его поверхности в процессе производства.. Когда куют стальную трубу, на его поверхности образуется черная накипь, придавая ему отделку, наблюдаемую на трубах этого типа.
Carbon steel galvanized pipe is steel covered with a layer of zinc metal. During the galvanizing process, the steel pipe is dipped in a bath of molten zinc to ensure a strong, uniform barrier coating. The galvanized pipe is covered with zinc material, which makes the steel pipe more resistant to corrosion.
A brief description of the differences
· Both black and galvanized pipes are made of carbon steel.
· While galvanized pipes have a zinc coating, black pipes do not.
· Black pipes are more suitable for carrying gas due to their tendency to corrode. С другой стороны, galvanized pipes are ideal for carrying water but not for gas.
· Galvanized pipes are more expensive due to galvanizing.
· Galvanized pipe is more durable.
Различные виды использования:
The main use of black steel pipes is to transport propane or natural gas to residential and commercial buildings. The pipe has no seams, making it a better pipe for carrying gas. Black steel pipe is also used in fire sprinkler systems because it is more fire resistant than galvanized pipe. The main use of galvanized pipe is to transport water to homes and commercial buildings. Zinc also prevents deposits from building up that could clog water pipes. Galvanized pipe is often used as scaffolding because of its corrosion resistance.
Difference in question:
The zinc on galvanized pipes can flake off over time, clogging the pipes. Spalling can cause the pipe to burst. The use of galvanized pipes to carry gases can be dangerous. С другой стороны, black steel pipes corrode more easily than galvanized pipes and allow minerals from the water to accumulate in them.
Cost difference:
Galvanized wire pipe costs more than black steel pipe because of the zinc coating and manufacturing process involved in producing galvanized pipe. Galvanized fittings also cost more than black steel fittings. Galvanized steel pipes must never be joined with black steel pipes during the construction of residential or commercial buildings.
How to distinguish between these two pipelines?
1. Check the color of the pipes. Black steel pipes are flat black and galvanized pipes are silver grey. Black steel pipe is darker than galvanized pipe.
2. Distinguish differences by the material they carry. Galvanized pipes are usually used for water transportation, and black steel pipes are used for gas transportation.