스케줄 20 강관 치수

스케줄 20 강관 치수

Here is a standard specification chart for your reference. It defines the dimensions for commonly used Schedule 20 pipes. Refer to this to easily determine the exact proportions of your pipe!

Main Characteristics of Schedule 20 Steel Pipe

Here, we shall discuss schedule 20 steel pipes in depth. We will dive into the properties that characterize and define them. By the end, you will be able to tell if schedule 20 steel pipe is the right fit for you.

Physical Properties

Wall Thickness and Diameter Specifications

We have already discussed that Schedule 20 pipes lag behind 40 and 80 in terms of wall thickness. Along with nominal pipe size, the schedule completely describes its dimensions. However, you must not confuse NPS with actual pipe dimensions. For a specific NPS, the outer diameter remains constant. However, it is a different value. For instance, look at the NPS of 12. At that value, the outer diameter is 12.750 inches (323.8 mm). The wall thickness at this NPS will be 0.250 inches. Much smaller than, say, a Schedule 40 pipe at the same NPS.

To get an exact understanding of pipe dimensions, you can always refer to the ASME B36.10M. Our chart can also give you a quick reference. Pipe dimensions are provided in both inches and millimeters. These are regular conventions used across the industry. As a good practice, always verify pipe specifications before placing a bulk order. Furthermore, manufacturers also provide custom specifications. Consult with your supplier about any specific requirements you may have.

Weight and Structural Integrity

The best thing about thin-walled pipes is their weight. It has numerous benefits across the project timeframe. Just imagine how much easier it makes transportation, storage, and installation. They are ideal for minimal load-bearing structures. Make sure not to overload them. Be mindful of bracing or reinforcing the pipes when required. Ultimately, strive to strike a balance between weight savings and structural demands. It is crucial to use the right pipe for the right purpose.

Corrosion Resistance and Durability

While schedule 20 pipes offer moderate durability, they perform well for their weight category. Please note that we are working with carbon steel in this instance. Generally, it is susceptible to rust. Therefore, it’s important to mind environmental factors. If you know that your pipe setting is prone to corrosion, opt for galvanized pipes. It may seem like a slightly larger investment, but trust us, it will pay off in the long run. Nothing is worse than rehauling an entire pipe system after just a few years of use. With good care and maintenance, you can expect your pipes to last up to 40 years!

Pressure and Temperature Ratings

Pipe trends are intuitive in general, so you would be right to assume that thinner walls mean less pressure tolerance. As the lightest schedule, these pipes must not be utilized in high-pressure systems. For instance, if you are using a 2-inch Schedule 20 pipe, it must not be exposed to pressure greater than 270 psi. Of course, this is substantially lower than Schedule 40 or 80. Engineers value Schedule 20 for its economical properties, not its robustness. As a rule of thumb, use Schedule 20 only under ambient conditions and non-critical flow settings.

Weldability and Fabrication Suitability

Metals with low-carbon content are weld-friendly, and Schedule 20 is no exception in this regard. To that end, a variety of welding methods are available to Schedule 20 users. You can choose between TIG, MIG, or even stick-welding. When working with thin-walled pipes, please be mindful of heat burn-through. The last thing you need is an internally fractured pipe. Repairs of that kind are challenging to execute. For fabricators making design pieces, frames, or fittings, schedule 20 is a blessing. Its lightweight construction enables easy cutting and bending. If you prioritize fabrication-friendliness over strength, schedule 20 is the pipe for you.

Applications of Schedule 20 Steel Pipes

Due to their lightweight nature, Schedule 20 pipes are commonly used in many low-load-bearing applications. Primarily geared towards structural elements, they have various implementations. You can often see fabricators use them in fences, rails, or structural framing. They are also fine choices for low-pressure irrigation systems. In domestic settings, schedule 20 pipes find themselves in drainage and cable tubing. They are lightweight and easily transportable. Furthermore, engineers can install or replace them rapidly. For these reasons, schedule 20 pipes are one of the most versatile and cost-effective solutions.

Advantages of Schedule 20 Pipes

The key areas of advantage in schedule 20 pipes are their weight, price, and simplicity. Fabricators and engineers alike benefit from lower material and shipping prices. Additionally, their ease of bending, cutting, and forming is a great benefit. It means that you can make changes to the pipes according to your needs, even at the last moment. Although not ideal for heavy loads, they are often used in lightweight structures. Combine this with swift installation procedures and affordability, and you have an exceedingly versatile option. For further questions regarding Schedule 20 pipes, please contact us. Our professional team would be glad to provide you with a thorough consultation.