ERW Steel Pipe | Carbon Steel Welded Pipe Manufacturer – ASTM A53 API 5L BS 1387 Standard

Carbon Steel ERW Pipe,Low Alloy Steel ERW Pipe,Stainless Steel ERW Pipe

Product Specifications:

Size Range: 1/2" – 24" (DN15 – DN600)

Wall Thickness: SCH20 – SCH160, XXS

Length: 6m, 12m, or customized upon request

Standards: API 5L, ASTM A53, ASTM A106, EN10210

Material: Carbon Steel, Alloy Steel, Stainless Steel

Pipe Ends: Plain End, Beveled End, or Threaded End

Quantity:

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Product Definition

ERW steel pipes are produced through the electric resistance welding (ERW) process, using premium carbon steelandalloy steel materials. These ERW steel pipesincludeERW galvanized pipe,ERW black steel pipe, and ERW carbon steel pipe, each offering excellent strength, corrosion resistance, and dimensional accuracy.

TheERW steel pipe manufacturing process ensures smooth surfaces and uniform wall thickness, making ERW welded pipes ideal for construction, oil & gas, and mechanical systems. As professional ERW pipe manufacturers,Cangtie Industrial delivers both standard and customized ERW piping solutions, combining high precision, reliability, and cost efficiency.

Company Introduction

Hebei Cangtie Industrial Co., Ltd is a leading ERW steel pipe manufacturer and exporter in China, specializing in ERW galvanized pipes,ERW black steel pipes, and ERW carbon steel pipes. With advanced ERW welding lines and decades of experience, we have become one of the most trusted ERW tube suppliersworldwide.

OurERW steel pipesandERW steel tubes are certified by ISO9001,CE, and BV, ensuring global quality standards. Cangtie’s ERW piping products are exported to more than 60 countries, widely used in construction, energy, and infrastructure projects. As reliable ERW pipe manufacturers, we focus on continuous innovation in electric resistance welded tube technology to provide durable and cost-effective solutions.

Product Specifications

Product Name	Grade	Density	Typical Application	Common Sizes
ERW Galvanized Pipe	Carbon Steel, Alloy Steel	3%	Water supply, scaffolding, outdoor structures	1/2"– 24"(DN15 – DN600)
ERW Black Steel Pipe	Carbon Steel	3%	Structural, mechanical, oil & gas pipelines	1/2"– 12"(DN15 – DN300)
ERW Carbon Steel Pipe	Carbon Steel	3%	High-pressure and industrial systems	1"– 24"(DN25 – DN600)
ERW Steel Pipe	Carbon Steel, Alloy Steel	3.5%	Construction, industrial use, infrastructure	1"– 36"(DN25 – DN900)
ERW Steel Tube	Carbon Steel	3%	Machinery, furniture, and light structural applications	1"– 12"(DN25 – DN300)
ERW Tube Suppliers	Various Materials	2%	Customized industrial projects and piping	Customizable
Electric Resistance Welded Tube	Carbon Steel, Alloy Steel	1.5%	Precision engineering, instrumentation	1/2"– 8"(DN15 – DN200)

Quality & Applications

AllERW steel pipes are produced under advanced inspection and testing systems to ensure superior strength, consistency, and performance.
OurERW galvanized pipe,ERW black steel pipe,ERW carbon steel pipe, and ERW steel tube series are widely recognized for their reliability and long-term durability.

ERW Galvanized Pipe: Features strong zinc coating for corrosion resistance, ideal for scaffolding, greenhouses, and water pipelines.
ERW Black Steel Pipe: Designed for high mechanical strength, commonly used in oil, gas, and structural applications.
ERW Carbon Steel Pipe: Perfect for high-pressure systems, energy transmission, and industrial pipelines.
ERW Steel Tube: Lightweight, precise, and durable—used in machinery, furniture, and construction equipment.
Electric Resistance Welded Tube: Known for accuracy and smooth surfaces, suitable for high-performance engineering projects.
ERW Piping: A flexible and cost-effective system for industrial, mechanical, and infrastructure applications.

EachERW welded pipe undergoes strict dimensional control, ensuring leak-free joints and smooth internal surfaces for efficient flow performance.

Conclusion

As one of China’s most professional ERW pipe manufacturersandERW tube suppliers,Hebei Cangtie Industrial Co., Ltd provides top-grade ERW steel pipes,ERW galvanized pipes, and ERW carbon steel pipes for diverse industries worldwide.
OurERW steel tubes,electric resistance welded tubes, and ERW piping solutions combine superior quality, durability, and competitive pricing — making Cangtie a trusted global partner for ERW steelapplications.

Our ERW steel pipes (Electric Resistance Welded pipes) are produced using advanced high-frequency welding technology to ensure precise dimensions, smooth inner surfaces, and consistent weld quality. Each pipe is manufactured under strict inspection and quality control to meet international standards for strength, durability, and performance.

We supply carbon steel ERW pipes in a wide range of diameters and wall thicknesses for both structural and fluid transportation applications. For instance, our 2 inch ERW steel pipe is widely used in construction frameworks, water and gas pipelines, and general engineering projects due to its excellent mechanical strength and cost efficiency.

ERW Steel Pipe Specification
Parameter / Item	Range / Options / Details
Product Name	ERW Steel Pipe / ERW Carbon Steel Pipe / ERW Galvanized Steel Pipe
Outer Diameter (OD)	1/2” – 48” (21.3 – 1219 mm) Common sizes: 1”, 2”, 4”, 6”, 8”, 10”, 12”
Wall Thickness (WT)	SCH10 – SCH160 / 0.5 – 20 mm
Length Options	Standard: 5.8 m, 6 m, 11.8 m, 12 m Custom cut-to-length up to 18 m available
Material Grades	Carbon Steel: Q195, Q235, Q345, ASTM A53 Gr.A/B, API 5L Gr.B, ASTM A500 Galvanized ERW Pipe: ASTM A53 / BS1387 / EN10255
Manufacturing Process	High-Frequency Electric Resistance Welding (HFW / ERW) Optional: Hot-Dip Galvanizing, Pre-Galvanizing
Standards / Specifications	ASTM A53 / A500, API 5L, BS1387, EN10219, EN10217, DIN2440 / 2448, JIS G3444
Surface / Finish	Black painted, oiled, varnished, pre-galvanized, hot-dip galvanized, 3PE / 3PP coating
Pipe Ends / End Type	Plain End (PE), Beveled End (BE), Threaded (NPT / BSP) with plastic caps
Testing & Inspection	Hydrostatic Test, Ultrasonic Test (UT), Eddy Current Test, Flattening & Bending Test Third-party inspection: SGS / BV / TUV available
Tolerance & Precision	OD: ±0.5 mm Wall Thickness: ±5% or as per customer requirements
Max. Length Capability	Up to 18 m per single piece for pipeline and structural applications
Applications	Oil & gas pipelines, construction scaffolding, water supply systems, mechanical & structural uses
Other Names / Equivalents	ERW Carbon Steel Tube, ERW Black Pipe, ERW Galvanized Tube, Electric Resistance Welded Pipe
Theoretical Weight (kg/m)	Formula: Weight = (OD - WT) × WT × 0.02491 (OD & WT in mm)

In addition to carbon steel options, we also provide ERW galvanized steel pipes for enhanced corrosion resistance, ideal for outdoor or humid environments. Our high-frequency welded pipes offer a clean and firm weld seam, ensuring long service life and reliability in industrial and civil uses.

As a leading ERW steel pipe manufacturer and supplier, we are committed to delivering products that combine high performance with competitive prices, suitable for oil & gas, construction, and water supply systems worldwide.

Applications of ERW Pipes (Electric Resistance Welded Pipes)

ERW pipes (Electric Resistance Welded pipes) are widely used in a variety of industries due to their strength, durability, and versatility. ERW welded pipes are created using an electric resistance welding process, where the edges of the pipe are heated to a high temperature and then fused together. This method results in a pipe with a strong, uniform weld, making ERW pipes suitable for numerous applications across sectors like oil & gas, construction, automotive, and industrial piping systems.

1. Oil & Gas Industry

In the oil and gas industry, ERW pipes are commonly used for pipelines that transport oil, natural gas, and other fluids. The ERW welded pipe process ensures the pipes can withstand the high pressures and extreme temperatures typically found in these environments. ERW steel pipes are widely used in onshore and offshore pipelines, drilling systems, and well casings.

Typical Sizes:

Outer Diameter (OD): 1" – 24" (25.4 mm – 609.6 mm)
Wall Thickness (WT): SCH40 – SCH160 (4 mm – 20 mm)

ERW pipes vs seamless pipes in the oil and gas industry often comes down to cost and specific application needs. While seamless pipes provide superior strength, ERW pipes offer cost-effective solutions for non-high-pressure applications where welded seams are not a concern.

2. Construction and Structural Engineering

In construction, ERW welded pipes are widely used for structural support, scaffolding, and frameworks for buildings, bridges, and other infrastructure projects. ERW steel pipes are ideal for these applications due to their ability to support high loads and resist corrosion when treated with coatings or galvanization.

Typical Sizes:

Outer Diameter (OD): 1" – 12" (25.4 mm – 304.8 mm)
Wall Thickness (WT): SCH40 – SCH80 (3.5 mm – 8 mm)

In terms of ERW pipe vs seamless pipe, while seamless pipes are preferred for high-pressure applications, ERW pipes provide an excellent solution for structural uses that do not involve extreme pressure requirements but still demand durability and strength.

3. Water Supply and Plumbing Systems

ERW pipes are also widely used in water supply systems, drainage, and plumbing due to their excellent durability, especially when galvanization is applied. These pipes are ideal for transporting potable water, sewage, and wastewater due to their corrosion resistance, which ensures a long service life even in humid or aggressive environments.

Typical Sizes:

Outer Diameter (OD): 1" – 12" (25.4 mm – 304.8 mm)
Wall Thickness (WT): SCH20 – SCH40 (2 mm – 8 mm)

The question of what is ERW pipe often arises in this context, as these pipes are produced through a welding process that gives them a smooth and clean finish, making them highly suitable for use in municipal water systems and plumbing lines.

4. Automotive Industry

ERW pipes are frequently used in the automotive industry for manufacturing components such as exhaust systems, chassis parts, and fuel lines. ERW steel pipes are preferred for high-volume manufacturing due to their cost-effectiveness and ability to be formed into precise shapes and sizes.

Typical Sizes:

Outer Diameter (OD): 1" – 4" (25.4 mm – 101.6 mm)
Wall Thickness (WT): SCH20 – SCH40 (2 mm – 6 mm)

The key advantage of ERW pipes in automotive applications is the cost-efficiency compared to seamless pipes, which are often used only for high-strength, high-pressure applications.

5. Chemical and Petrochemical Industries

In chemical plants and petrochemical refineries, ERW welded pipes are used to transport chemicals, oil, and gas in both high- and low-temperature conditions. ERW pipes are cost-effective solutions for piping systems in environments where extreme pressure and corrosive materials are not a primary concern.

Typical Sizes:

Outer Diameter (OD): 2" – 24" (50.8 mm – 609.6 mm)
Wall Thickness (WT): SCH40 – SCH160 (4 mm – 20 mm)

ERW pipes vs seamless pipes in these applications comes down to the pressure requirements. Seamless pipes are generally preferred for high-pressure systems, while ERW pipes can be used for lower pressure and temperature systems.

6. Manufacturing and Heavy Industry

ERW pipes are commonly used in heavy machinery, hydraulic systems, and industrial equipment. The ability to customize ERW steel pipes to specific sizes and thicknesses makes them suitable for various pressure vessels, hydraulic cylinders, and industrial piping systems that demand consistent mechanical properties.

Typical Sizes:

Outer Diameter (OD): 1" – 12" (25.4 mm – 304.8 mm)
Wall Thickness (WT): SCH40 – SCH120 (4 mm – 12 mm)

The ERW pipe definition explains that these pipes are made by welding the edges of a steel strip, making them a more cost-efficient choice for industries where seamless pipes would be overkill.

7. ERW Pipe vs Seamless Pipe

The choice between ERW pipe vs seamless pipe often depends on the application and required strength. ERW pipes are typically used in applications where the welded seam is not a concern, and they provide a cost-effective alternative to seamless pipes in situations where high-pressure strength is not required.

While seamless pipes are known for their superior mechanical properties and uniformity, ERW welded pipes offer great value and performance in a variety of industrial applications, especially where cost-efficiency is a key factor.

Conclusion

As a leading ERW pipe manufacturer and ERW pipe supplier, we provide ERW welded pipes for a wide range of industrial applications, ensuring that you get the best combination of quality, reliability, and cost-effectiveness. Whether you need ERW pipes for oil and gas pipelines, construction, water supply systems, or automotive components, our pipes are designed to meet your specific requirements with excellent performance and competitive pricing.

If you're still asking what is ERW pipe or looking for the best choice between ERW pipe vs seamless, our team can guide you toward the most suitable solution based on your project needs.

Cangtie Packaging :

At Hebei Cangtie Industrial Co., Ltd, we believe that good packing is just as important as good products. That’s why we provide a full range of customized packing solutions to meet different shipping conditions, project requirements, and budget levels.

For bulk shipments, our standard steel-strip bundles remain the most cost-effective and widely accepted choice, ensuring easy handling and fast loading. To protect pipe ends from dust, water, and deformation, we can add plastic end caps, while an oiled surface further prevents rust during long storage or sea transportation.

When goods are headed to humid or tropical regions, waterproof wrapping with plastic cloth is recommended, keeping pipes dry and corrosion-free. For stainless steel or precision tubes, wooden cases and pallets provide additional safety, preventing scratches and impact during transit.

For high-value projects, we offer individual wrapping to ensure every pipe is well-protected, while 3PE or epoxy coating with special packing guarantees the anti-corrosion layer remains intact, especially for oil, gas, and long-distance pipeline applications.

👉 Whether you are looking for economical bulk solutions or premium protection for critical engineering projects, our team will always recommend the most suitable packing method to ensure your steel pipes arrive safe, secure, and ready to use.

At Hebei Cangtie Industrial Co., Ltd, we ensure that every steel pipe you order is delivered safely, on time, and with guaranteed quality. Our professional system and factory-backed process give you full confidence in every shipment.

Delivery of Cangtie :

Immediate Order Activation: Once your order is confirmed, our production and delivery process starts instantly—no delays, no waiting.
Fully Controllable Delivery Process: From production planning to quality inspection and shipping, every step is monitored and managed to ensure reliability.
Guaranteed Quality and Quantity: All products undergo strict inspection and meet ISO9001, CE, BV, and other international standards. Each pipe is traceable with inspection records.
Customized and Safe Packaging: Flexible packaging options tailored to your needs—bundled, bulk, export crates, or special protective packaging—ensuring safe transport worldwide.
Real-Time Tracking and Transparency: You can monitor the progress of your order at any time, from production to delivery, keeping you fully informed.
Proven Reliability: Trusted by customers across Europe, the Middle East, and Southeast Asia for consistent, high-quality deliveries.

Cangtie — Professionalism, Responsibility, and Peace of Mind in Every Delivery.

At Hebei Cangtie Industrial Co., Ltd, we provide more than just steel products — we provide trust and reliability.

Own Factory – We operate our own modern manufacturing base, ensuring full control of production and consistent quality.
Premium Raw Materials – All steel materials are sourced from well-known domestic mills, guaranteeing strength, durability, and stability.
Quality Assurance – Every product is manufactured under strict inspection processes, with Mill Test Certificates (MTC) provided for each order.
International Certifications – Our products comply with ISO, CE, BV, API and other international standards, making them suitable for global projects.
Proven Reliability – Exported to more than 50 countries with excellent feedback from long-term partners.

Choosing us means choosing a reliable partner with strong production capacity, guaranteed quality, and global trust.

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