Black steel and galvanized pipes are the two most widely used pipe types used for fire suppression systems.
What is the difference between a black steel pipe and a galvanized steel pipe? – We will return to this issue, but before that, let’s consider the characteristics and conditions of use of each of them separately.
Black steel pipe
The use of black steel pipes for fire extinguishing systems is widespread. According to the current legislation in Georgia, which is based on the American NFPA fire standard, the use of both welded and seamless pipes for fire extinguishing systems is allowed, however, in both cases, the pipe must comply with the fire safety standards established by the standard: ASTM A53 (USA), and EN10-255 (European standard).
When using a pipe of an inappropriate standard, there is a risk of damage and water leakage, and in the event of a fire, non-fire-resistant steel easily loses its structural strength and deforms. There is a risk that the fire-fighting system will easily fail and be unable to extinguish the fire at a critical moment.
When a black steel pipe is in contact with water, there is a high risk of corrosion, which reduces the life of the pipe. It is necessary to treat the black steel pipe with anti-corrosion paint.
Galvanized Pipe
The best and most optimal use of galvanized steel pipes for fire piping is . The use of hot-dip galvanized pipes on both sides ( inside and outside ) is more effective for fire extinguishing systems for the following reasons: :
- Corrosion resistance
- Acceptable price
- High durability ( 20-30 years longer in service than black steel )
- Effective visual ( shiny silver )
- Does not require anti-corrosion paint treatment
The zinc coating provides an additional layer of corrosion protection , which extends the ‘ lifespan ‘ of the steel pipe.
The zinc coating not only provides durability , but also gives the pipe an aesthetically pleasing , silver – gray color , making it suitable for both functional and decorative purposes .

Basic Difference
Generally speaking , the cost of black steel pipe is slightly lower than that of galvanized pipe , although galvanized steel does not require painting . Removing this cost balances out the difference in price between black steel and galvanized steel . This is due to the zinc coating of galvanized pipe and its manufacturing process..
Accessibility
Both types of pipes can be purchased at Elplus – the company was founded in 2005 and has been serving the market continuously for more than 20 years . The use of modern technologies is the main niche of the company . Elplus is the first company in Georgia to start and develop fire safety inventory in the local market . The company has implemented more than 1000 successful projects throughout Georgia . .
Conclusion
Now that we know the difference between black steel pipes and galvanized pipes , the final decision will depend on:What the project requiresWhat do we need ? – Ease of installation, the need to use paint, visual, durability or corrosion resistance – The main thing is to weigh the differences– Let’s weigh it and then make a decision.