Black vs Galvanized Pipe Fittings

Apr. 10, 2021

Black steel pipe fittings and galvanized steel pipe fittings are the two most common kind of pipe applied to transport liquid and gas. Both black steel pipe and galvanized pipe are made of steel, however, the galvanized pipe has a zinc coating while the black pipe does not. As a result, galvanized pipe is more durable. For transportation, black steel pipe tends to erode more easily than galvanized pipe and therefore it is more suitable for transporting gas and galvanized pipe is fit for carrying water instead of gas.

Galvanized Pipe Fitting

Galvanized pipe fittings

Galvanized pipe fittings are covered with a layer of zinc which makes these fittings have a higher ability of corrosion protection and help to prevent the accumulation of mineral deposits that will block the pipe. Galvanized pipe is mainly used for carrying water to supply home and commercial buildings; it may also serve as scaffolding frames because of its rust prevention.

Galvanized pipe fittings are used for countless outdoor and industrial applications because of the material's ability to protect against corrosion and salt. Galvanized pipe and fittings may be used in most applications with the exception of underground lines. While they work best with cold water lines, they may be used with hot water as well. The main advantage of using galvanized fittings is their superior rust resistance when compared to black and copper fittings. Galvanized pipe fittings should not be used with gas applications.

Black pipe fittings

Black pipe fittings (black malleable iron fittings) are used to make connections to black iron pipe. Black iron pipe is used to transport natural and propane gas in residential applications.

Black steel pipe is manufactured as a seamless steel pipe, which makes it a better choice for gas transportation and fire sprinkler systems as it is more resistant to fire than galvanised steel pipe. Black iron pipe is also most commonly used in fire sprinkler systems due to its high heat resistance and in water supply lines due to its resistance to water damage. It is known as a black steel pipe due to the dark surface formed by iron oxide in the manufacturing process.

45 Degree Black Pipe Elbow

The main difference between steel pipe and galvanized pipe

The main difference between steel pipe and galvanized pipe lies in the surface. Black steel pipe is uncoated and made without steam, and therefore, it is widely used for transporting gas like propane and natural gas to residential and commercial building.

Galvanized pipe has zinc on the surface so the mineral will flack off as time goes by and block the pipe. This will lead to a burst. In view of this, transport gas by galvanized pipes is dangerous so it is often used in carrying water.

Black steel pipe, on the other hand, is not suitable for water transport. Black steel pipes tend to corrode in water and mineral of the pipe will dissolve into the water and clog the line as well.

Galvanized Pipe Fittings supplier and black iron fittings supplier

In the <GLOBAL MALLEABLE IRON PIPE FITTINGS MARKET INSIGHTS AND FORECAST TO 2026>, the report provides market analysis from 2015 to 2026, including market size, country (or region) analysis, sales, and profit analysis, market competition pattern, and market share analysis, based on detailed information and data of 11 major malleable iron pipe manufacturers and participants in the world. Among the 11 companies are Viking Group Inc/ Mueller Industries Inc/ Smith-Cooper International in the United States,BlS Pipe Fitting Industry of Thailand, and Hebei JIANZHl Casting Group of China.


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