ERW Electric Resistance Welded Carbon Steel Welded Steel Pipes ASTM A178 For Boiler And Superheater

Introduction

ERW (Electric Resistance Welded) carbon steel welded steel pipes are widely used in various industrial applications, including boilers and superheaters. These pipes are manufactured according to the ASTM A178 standard, which specifies the requirements for seamless and welded carbon steel tubes suitable for use in high-pressure applications. In this article, we will explore the material, specification, chemical composition, mechanical properties, steel grade, and applications of ERW carbon steel welded steel pipes conforming to ASTM A178.

Material

The material used for ERW carbon steel welded steel pipes ASTM A178 is carbon steel. Carbon steel is an alloy of iron and carbon, which provides excellent strength, durability, and corrosion resistance. It is widely preferred in various industries due to its cost-effectiveness and versatility.

Specification

The specification for ERW carbon steel welded steel pipes ASTM A178 includes the following requirements:

• Size Range: Outer diameter (OD) - 1/2" to 5", Wall thickness (WT) - up to 0.165"
• Length: Customizable, typically ranging from 6 to 12 meters
• Manufacturing Method: Electric Resistance Welding (ERW)
• Heat Treatment: After welding, pipes are subjected to stress relieving or normalizing heat treatment to improve their mechanical properties.

Chemical Composition

The chemical composition of ERW carbon steel welded steel pipes ASTM A178 should meet the specified requirements to ensure proper mechanical properties and performance. The typical chemical composition is as follows:

Mechanical Properties

The mechanical properties of ERW carbon steel welded steel pipes ASTM A178 are essential to assess their suitability for specific applications. The pipes must meet the following mechanical requirements:

• Tensile Strength: 325 MPa (minimum)
• Yield Strength: 180 MPa (minimum)
• Elongation: 35% (minimum)
• Hardness: HRB 60 (maximum)

Steel Grade

ERW carbon steel welded steel pipes ASTM A178 are available in various steel grades. The commonly used grade for these pipes is Grade A, which offers excellent weldability and high corrosion resistance. Grade A is suitable for applications involving high temperatures and pressures, making it ideal for use in boilers and superheaters.

Application

ERW carbon steel welded steel pipes ASTM A178 find extensive applications in the following areas:

• Boilers: These pipes are used for carrying high-temperature fluids in boiler systems, ensuring efficient heat transfer.
• Superheaters: ERW carbon steel welded pipes are employed in superheater units to further increase the temperature of steam, enhancing the overall efficiency of power generation.
• Heat Exchangers: The pipes are also utilized in heat exchanger systems for transferring heat between two fluids.

Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.

Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.

At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

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