What Type of Pipe is Not Commonly Used for Gas Piping? Truth!

What Type of Pipe is Not Commonly Used for Gas Piping?

With the variety of piping options available for gas systems, it can be overwhelming to choose which type is best suited for your project.

While certain types of pipe are widely used for gas piping, there are some that should not be considered due to their inability to safely contain and transport these potentially hazardous materials.

In this article, we’ll discuss why some pipes shouldn’t be used in gas piping and what alternatives you have when installing a system.

What Type of Pipe is Not Commonly Used for Gas Piping?

Copper pipe is the most common type of pipe used for gas piping, but it is not the only type. Other types of pipe, such as PVC, CPVC, and black iron, are not commonly used for gas piping due to their lack of durability and potential for corrosion. PVC and CPVC pipes are not suitable for gas piping because they are not strong enough to withstand the pressure of the gas. Black iron pipe is not commonly used for gas piping because it is prone to corrosion and can be difficult to install.

Which material is best for gas pipeline?

1. Consider the type of gas that will be transported through the pipeline. Different types of gas require different materials for the pipeline.

2. Consider the pressure of the gas that will be transported. Different pressures require different materials for the pipeline.

3. Consider the temperature of the gas that will be transported. Different temperatures require different materials for the pipeline.

4. Consider the environment in which the pipeline will be located. Different environments require different materials for the pipeline.

5. Consider the cost of the material. Different materials have different costs associated with them.

6. Research the different materials available for gas pipelines.

7. Compare the different materials and their properties to determine which material is best for the gas pipeline.

8. Consult with a professional engineer to ensure the material chosen is suitable for the gas pipeline.

Plastic Gas Piping:

Plastic gas piping is not commonly used for gas piping due to its lack of durability and flexibility.

Plastic pipes are prone to cracking and breaking, making them unreliable when transporting combustible materials such as natural gas or propane.

This poses a major safety risk because even the smallest leak can cause an explosion.

In addition, plastic cannot withstand extreme temperatures; therefore it cannot be used in exposed areas that may be affected by hot or cold weather.

Furthermore, plastic pipes tend to corrode easier than metal pipes which could lead to unsafe accumulation of toxic fumes inside the pipe itself. 

Overall, plastic gas piping is not recommended for use in any situation where safe transportation of combustible material is necessary.

Metal pipes remain the most reliable source for secure installations since they are strong enough to resist corrosion while also being able to handle temperature changes without compromising their integrity.

Flexible Corrugated Stainless Steel Tubing (CSST):

Flexible Corrugated Stainless Steel Tubing (CSST) is not a commonly used pipe for gas piping. CSST has been around since the early 1990s, and its use is regulated by local codes in some jurisdictions due to safety concerns.

Compared to rigid steel pipes, CSST’s flexibility makes it easier to install but also creates potential hazards if installed incorrectly or without proper bonding.

It may be possible for lightning strikes or nearby electrical arcs to ignite the gas inside of an un-bonded CSST line which can lead to property damage and even death.

Additionally, some insurers do not cover homes that contain this type of pipe unless all necessary bonding requirements are met according to code standards.

Lastly, while it may be legal in certain areas with special permits, many municipalities do not allow its installation as a form of gas piping due to the risks associated with it.

Polyethylene (PE) Gas Line:

Polyethylene (PE) gas line is not a commonly used type of pipe for gas piping applications.

This type of plastic pipe has several disadvantages that make it less desirable than other types of materials. 

First, PE gas line is prone to leaks because the material can be easily pierced and damaged by sharp objects or tools during installation and maintenance work.

Furthermore, PE does not have inherent corrosion resistance properties; therefore, protective coatings are needed to protect against corrosion in order for it to last long-term. 

In addition, PE pipes do not stand up well under high temperatures which can cause them to become brittle with time leading to failure down the road.

Finally, this type of plastic is more difficult and expensive to install due to its flexibility requiring special fittings and connectors compared with other materials such as steel or copper pipes that don’t require additional components or fixtures during installation.  

For these reasons, polyethylene (PE) gas line is rarely used for gas piping projects today and alternative options are typically preferred instead.

How to identify which type of pipe is not commonly used for gas piping?

The most commonly utilized pipes are:

Unlike with gas piping, where one size can accommodate any need – depending on your area – plumbers utilize various sizes of pipe to fit different types of requirements.

The most common sizes are found within the range of 14-inches, 18 inches and 30 inches.

Utilizing a 14 inch ID would be sufficient for a single-family residence.

A spacious house may require an extra-large diameter of pipe (20 in), while larger facilities could benefit from utilizing a 30 inch dimension for added flexibility relating to installation and operation of equipment.

Exploring the Different Types of Pipe Used for Gas Piping:

If you’re planning to employ the use of different types of pipe, it’s essential that you consider all possibilities; this will help ensure that your gas piping project is as efficient and cost-effective as possible.

Choosing between a Type S or Type L pipe for gas service is all about appropriateness and ease of installation.

Utilizing HVAC Type L pipe offers a more seamless transition from the attic or crawl space into the home, whereas Type S is ideal for situations where a run of electricity must be carried through an area without making any modifications.

Type S pipe, on the other hand, can be utilized in areas requiring electrical connections, or wherever access may prove challenging.

Type L pipe is simply the most convenient option for your HVAC system whenever running electric lines throughout your home while maintaining its sleek appearance.

Types of Pipe Used in Gas Piping:

Type S, L and U:

Type S is a flexible pipe designed for easy transitions from one area to another.

This type of pipe is often used in areas where a run of electric wiring must be passed through.

Type L is the most common style for this purpose since it is both flexible and seamless, making it perfect for any homeowner who desires a clean install without any additional modifications.

Type U is similar to Type L but its outer casing has been reinforced with metal plates that make it more durable.

This style of pipe can also be used for carrying gas around tight corners or under high pressure.

The Pros and Cons of Using Non-Commonly Used Pipe for Gas Piping:


1. Non-commonly used pipe is more cost-effective than other types of gas piping. 

2. It is often easier to install than other types of gas piping due to its light weight. 

3. Non-commonly used pipe can withstand extreme temperatures and pressure, making it ideal for use in a variety of applications. 


1. Non-commonly used pipe may not meet all local codes and regulations, so it should be checked before installation. 

2. Some non-commonly used pipes may be more prone to corrosion or other damage than other types of gas piping, so regular maintenance is important. 

3. Non-commonly used pipe may not be as durable as common types of pipe, so it is important to choose the right type for your specific needs.

What Are the Different Types of Pipe Used for Gas Piping?

In the gas industry, there are two commonly used types of pipe:

 Black iron pipe:

The most common type is black iron pipe which is made from welded or seamless steel and has a corrosion-resistant coating.

This type of pipe is relatively inexpensive, durable and can withstand higher temperatures than other types of piping materials.

Other popular options include copper tubing which offers good thermal conductivity, stainless steel for its strength and longevity, as well as PVC (polyvinyl chloride) for cost efficiency and easy installation in tight spaces. 

Fiberglass reinforced plastic pipe (FRP) :

Fiberglass reinforced plastic pipe (FRP) may also be used for some applications but its use is not very common due to the high cost associated with this material.

Steel pipes may also be used but they must have an appropriate finish applied in order to resist corrosion caused by natural gas or propane fumes over time.

Finally, aluminum isn’t commonly used for gas piping due to its potential reactivity when exposed to certain chemicals found in natural gas or propane gases such as carbon dioxide and water vapor.

What Are the Risks of Using Non-Commonly Used Pipe for Gas Piping?

1: Potential for Leaks:

Non-commonly used pipe may not be as reliable as commonly used pipe when it comes to preventing gas leaks.

2: Fire Risk:

Because gas is highly flammable, any cracks or openings in the pipe can create a fire hazard.

3: Corrosion Risk:

Certain types of pipes are more prone to corrosion, which can lead to dangerous gas leaks.

4: Poor Installation Practices:

Non-commonly used pipes require special tools and techniques for installation, which can lead to improper installation if not done correctly.

5: Lack of Regulation Compliance:

Non-commonly used pipes may not comply with local building codes and regulations, creating a risk of major fines or even criminal charges if discovered.

How to Choose the Right Type of Pipe for Gas Piping?

It is essential to consider the requirements of your project before selecting which pipe type would be ideal.

The four most common types of pipe are:


Ideal for low-pressure applications, such as a pneumatic tube in a ceiling. It is inexpensive and highly energy efficient; however, sealing it requires considerable effort!

Unprotected gas piping is commonly used for convenience purposes such as providing outlets from baths and toilets.


If you’re looking for a more sturdy option, protected (CPVC & CPAM) pipe is the way to go.

It’s heavier than unprotected options, but provides superior protection against corrosion and doesn’t require any additional sealing efforts at all!


This configuration consists of both a horizontal and vertical portion; the horizontal segment can accommodate up to one half inch thick steel pipe while the vertical section stands between 2.5″ – 5″ tall.

In order to transport gas safely through a building or along an underground pipeline with this method, these segments must be installed within 36 inches apart.


Commonly referred to as B-tubes, they consist of two parallel pipes connected by threads on one end and capped joints on the other.

These components can then be combined together to create myriad lengths that are suitable for any application!


You will frequently see steel or aluminum pipes used for gas piping; however, there are other options available as well.

Utilizing plastic pipes in your commercial construction project can yield benefits such as reduced installation time, less material costs and quicker completion of the job.

With our comprehensive range of pipe and fittings, we ensure that any construction task can be completed rapidly and successfully.

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