Steel Pipe (Schedule)
| Grade/Alloy | A500, A53, A106 |
| Length | 21' |
| Diameter | 1/8'' to 48'' (See chart page 24 ) |
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FAQ – Everything You Need to Know About Schedule Steel Pipes
A schedule steel pipe is a standardized steel pipe whose wall thickness is defined by a Schedule number.
Unlike steel tubing, which is typically measured only by its outside diameter, the schedule designation determines the pipe’s wall thickness. This directly affects its mechanical strength, pressure rating, and overall durability.
Schedule steel pipes are widely used in industrial, mechanical, structural, and fluid-transport applications.
The term Schedule comes from North American standards used to classify pipes based on wall thickness rather than weight.
For a given nominal diameter, a higher Schedule number means:
- thicker pipe walls
- greater resistance to pressure and mechanical stress
The most common schedules are:
- Schedule 40
- Schedule 80
The main difference between Schedule 40 and Schedule 80 steel pipes lies in wall thickness.
- Schedule 40
- Standard wall thickness
- Good balance between strength and cost
- Used for most industrial and mechanical applications
- Schedule 80
- Thicker wall
- Increased resistance to pressure and impact
- Preferred for demanding environments or high-pressure applications
At the same diameter, a Schedule 80 pipe will be heavier, stronger, and more durable than a Schedule 40 pipe.
At Acier Groupe David, schedule steel pipes are available with the following specifications:
- Standard length: 21 feet
- Diameters: from 1/8’’ to 48’’
- Schedules: 40 and 80
- Wall thickness and outside diameter: according to industry standards (see catalogue – page 24)
Pipes can also be custom cut to meet project-specific requirements.
Schedule steel pipes are available in several ASTM standards, each suited to specific applications.
- ASTM A53
- Carbon steel
- Suitable for welding and forming operations (bending, flanging, rolling)
- Used for steam, water, gas, and air lines
- Mechanical and pressure applications
- ASTM A106
- Seamless pipe only
- Excellent resistance to pressure and temperature
- Used in industrial piping, boilers, heat exchangers, and condensers
- Sizes ≤ 2’’ are often cold-drawn; ≥ 2’’ are hot-finished
- ASTM A500
- Primarily used for structural applications
- Good mechanical strength
- Commonly selected for construction and fabrication projects
Schedule steel pipes are used in a wide range of applications, including:
- Fluid transport (water, steam, air, gas)
- Industrial plumbing systems
- Mechanical and pressure applications
- Boilers, heat exchangers, and condensers
- Steel structures and industrial fabrication
- Commercial and industrial construction projects
The choice of schedule and ASTM standard depends on mechanical loads, pressure requirements, and the operating environment.
LSelecting the right steel pipe depends on several criteria:
- Type of application
- Structural, mechanical, pressure, or fluid transport
- Required schedule
- Schedule 40 for standard applications
- Schedule 80 for more demanding conditions
- ASTM standard
- A53, A106, or A500 depending on the application
- Diameter and length
- Standard sizes or custom-cut lengths
- Finish
- Black steel or galvanized pipe depending on the environment
Our team can assist you in selecting the configuration best suited to your project.
The price of schedule steel pipes varies depending on several factors:
- Schedule (40 or 80)
- Diameter and wall thickness
- ASTM standard
- Length (standard or custom-cut)
- Type of finish (black or galvanized)
- Quantity ordered
For an accurate price based on your specific requirements, we invite you to request a quote. Our team will be happy to assist you.
Yes. Acier Groupe David provides delivery of schedule steel pipes directly to job sites, industrial facilities, or fabrication shops.
Thanks to our steel distribution and delivery service, we serve all of Estrie and Montérégie, with logistics tailored to the needs of commercial, industrial, and residential projects.
