SCH 80 erw pipe

What is erw pipe?

ERW means “electric resistance welded”. ERW pipes and tubes are manufactured by rolling metal and then welding it longitudinally across its length. ERW pipes have a welded joint in their cross-section. It is manufactured from Strip/Coil and can be manufactured up to 24” OD.

ERW pipe involves electric resistance welding. Electric resistance welding has the characteristics of high production efficiency, low cost, material saving, and easy automation. Therefore, it is widely used in various industrial sectors such as aviation, aerospace, energy, electronics, automobiles, and light industry. It is an important welding process. ERW pipes are mainly used to transport vapor and liquid objects such as oil and natural gas or to construct steel structures and are widely used.

What is SCH 80?

SCH 80 (Schedule 80 pipe) represents the wall thickness, which refers to XS thickened pipes with a pressure wall thickness less than DN200mm. Usage scenarios generally involve high temperature, high pressure, and highly corrosive conditions. The wall thickness of SCH 80 grade pipes is relatively thick, and the pressure and temperature in the use environment must comply with ASME/ANSI standards to ensure the safety and reliability of the pipeline system. SCH 80 grade piping systems are often used in the manufacture of chemical equipment, high-pressure pipelines, high-temperature heaters and some special piping systems. When designing and installing a steel pipe system, it is necessary to select the appropriate pipe number according to the actual use environment to ensure the stability and safety of the pipeline system.

Features and applications of SCH 80 erw pipe:

Good surface quality, high dimensional accuracy, uniform wall thickness, high productivity and low cost

SCH 40 pipe vs SCH 80 erw pipe:

The main difference between SCH 40 and SCH 80 erw steel pipes is the wall thickness. SCH 40 pipe has a thinner wall thickness and is often used in low-pressure applications such as residential plumbing or irrigation systems. SCH 80 erw pipe has thicker walls and is used in high-pressure applications such as industrial processes, hydraulic systems and underground piping. They are designed to handle higher pressures and withstand greater stresses than SCH 40 pipe.

Looking at specific dimensions, the wall thickness of SCH 40 pipe is approximately 0.109 inches, while the wall thickness of SCH 80 pipe is approximately 0.154 inches. This means that SCH 80 pipe is approximately 30% thicker than SCH 40 pipe. While SCH 80 pipe is stronger and more durable than SCH 40 pipe, they are also more expensive.

SCH 80 pipe has thicker walls and requires more material and more manufacturing time, which increases costs. When selecting pipe for a specific application, it is important to consider the pressure requirements and the cost-effectiveness of selecting thicker, more expensive pipe.

How to choose the right SCH 80 ERW pipe manufacturer for your project?

1. Production capacity and technical strength

An excellent ERW pipe manufacturer should have strong production capacity and technical strength. You can check the manufacturer's production scale, equipment level, technology research and development capabilities and other information to understand whether it can meet your project needs. Manufacturers with strong production capacity and technical strength can provide you with stable product supply and technical support.

2. Product quality certification

High-quality ERW pipe manufacturers will produce in strict accordance with national and industry standards to ensure reliable product quality. When choosing a manufacturer, you can check its production license, quality management system certification and other qualification documents to understand the manufacturer's production process and quality control process. In addition, you can also check customer reviews and cases to understand the manufacturer's market reputation and practical application results.

3. Customized services

For different project needs, you may need to customize ERW welded pipes with different specifications, materials or properties. A high-quality ERW welded pipe manufacturer should have strong customization capabilities and be able to provide suitable products according to your requirements. When communicating with the manufacturer, you can ask about the specific content and process of its customized services to ensure that it can meet your needs.

4. Reasonable price

Price is an important factor influencing your choice of ERW welded pipe manufacturer. High-quality manufacturers can provide you with reasonable prices while ensuring product quality. When comparing prices, you need to consider factors such as product quality, specifications, quantity, etc. to ensure that the selected manufacturer can provide you with cost-effective products.

5. After-sales service

Good after-sales service is an important sign of high-quality ERW steel pipe manufacturers. Choosing a manufacturer that provides comprehensive after-sales service can ensure that you receive effective assistance during the purchase and use of ERW pipes. High-quality after-sales services include product consultation, installation guidance, maintenance, technical support, etc. When choosing a manufacturer, you can learn from them about the specific content and commitment of after-sales services to ensure that they can provide you with satisfactory services.

Pipe Sch 80 Chart, Dimensions, Weight And Pipe Wall Thickness

Nominal size [inches]	Outside diameter [inches]	Outside diameter [mm]	Wall thickness [inches]	Wall thickness [mm]	Weight [lb/ft]	Weight [kg/m]
1/8	0.405	10.3	0.095	2.41	0.31	0.47
1/4	0.54	13.7	0.119	3.02	0.54	0.8
1/2	0.84	21.3	0.147	3.73	1.09	1.62
3/4	1.05	26.7	0.154	3.91	1.47	2.2
1	1.315	33.4	0.179	4.55	2.17	3.24
1 1/4	1.66	42.2	0.191	4.85	3	4.47
1 1/2	1.9	48.3	0.2	5.08	3.63	5.41
2	2.375	60.3	0.218	5.54	5.02	7.48
2 1/2	2.875	73	0.276	7.01	7.66	11.41
3	3.5	88.9	0.3	7.62	10.25	15.27
3 1/2	4	101.6	0.318	8.08	12.5	18.63
4	4.5	114.3	0.337	8.56	14.98	22.32
5	5.563	141.3	0.375	9.53	20.78	30.97
6	6.625	168.3	0.432	10.97	28.57	42.56
8	8.625	219.1	0.5	12.7	43.39	64.64
10	10.75	273	0.594	15.09	64.43	96.01
12	12.75	323.8	0.688	17.48	88.63	132.08
14	14	355.6	0.75	19.05	106.13	158.1
16	16	406.4	0.844	21.44	136.61	203.53
18	18	457	0.938	23.83	170.92	254.55
20	20	508	1.031	26.19	208.87	311.17
24	24	610	1.125	30.96	296.58	442.08

Go here to learn more: Seamless vs Welded pipe