Zinc Coating Galvanized Steel Pipe

Galvanised steel pipe galvanized steel pipe is pre-cut, threaded, and certified NSF 61, and lead-free. Measurements are thread to thread. Each pipe has been hydrostatically tested and is ASTM and ASME compliant and galvanized in a hot zinc bath. Ideal for pipe decor, air, and water, applications that are within code. Quality industrial steel style complements any decor. Standard IPS threads for compatibility with other threaded parts.

Galvanised steel pipe such pipes are thermally (= hot dip) galvanized. This means that these pipes are immersed, giving them a coarse zinc layer that adheres to the inside and outside of the pipe. In contrast to electrolytic ally galvanized pipes, all sides are treated here and not just the outside. A hot-dip galvanized steel pipe is resistant to corrosion and has a robust and industrial appearance due to their coarse finish. The galvanized pipes are therefore sturdier and heavier than aluminum pipes. For that reason, we see that galvanized steel pipes are often used in steel construction, traffic engineering and scaffolding construction.

Galvanized steel pipe has been dipped in molten zinc to help protect against corrosion. That layer of zinc protects the underlying metal from the weakening effects of weather and helps prolong the pipe's longevity.Incidentally, the word "galvanization" is a tribute to the 18th-century physicist Luigi Galvani who experimented with tiny electrical currents. When later scientists realized you could coat iron with a protective zinc layer through an electrochemical process, they called it galvanization in Galvani's honor.

1. What are Galvanized Pipes Used For?

Water Supply Lines: In homes and buildings (primarily built before the 1960s-80s).

Natural Gas Lines: Still sometimes used for outdoor gas lines.

Fire Sprinkler Systems: Common in commercial and residential fire suppression systems.

Fencing and Handrails: Due to their corrosion resistance outdoors.

Structural Applications: As scaffolding and framework.

2.What are the Advantages of Galvanized Steel Pipe?

High Strength and Durability: Can withstand high physical impact and pressure.

Good Corrosion Resistance: Superior to bare steel, especially in outdoor environments.

Long Service Life: Can last 40-50 years or more, depending on the environment.

Heat Resistance: Non-flammable and can handle high temperatures, making it ideal for fire sprinkler systems.

3.What are the Disadvantages of Galvanized Steel Pipe?

Corrosion Over Time: Eventually, the zinc coating degrades, and the pipe will rust from the inside out, leading to:

Reduced Water Pressure: From rust and mineral buildup (scale) inside the pipe.

Discolored Water: Brown, rusty water.

Potential for Leaks: As the pipe corrodes and weakens.

Labor-Intensive Installation: Requires threading, cutting with a pipe threader, and is very heavy.

Cost: Generally more expensive than plastic alternatives like PEX for water supply.

Lead Concerns: Older galvanized pipes were coated with zinc that contained lead, posing a potential health risk if corrosion occurs.

4. How Can I Identify Galvanized Pipe?

Look: It has a characteristic silvery-gray, crystalline-like pattern (spangle pattern).

Feel: The surface is rough to the touch, not smooth like copper or plastic.

Magnet Test: A magnet will stick strongly to it (it's steel).

Compare: It is much heavier than PEX or PVC.

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