ASTM A178 ERW Electric Resistance Welded Carbon Steel Welded Steel Pipes

Instruction

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

 

Introduction
ASTM A178 ERW (Electric Resistance Welded) Carbon Steel Welded Steel Pipes are widely used in boiler and superheater applications. These pipes are manufactured using electric resistance welding, ensuring high-quality and reliable performance in demanding environments. In this article, we will explore the material, specification, chemical composition, mechanical properties, steel grade, and applications of ASTM A178 ERW pipes.

 

Material
The material used for ASTM A178 ERW pipes is carbon steel. Carbon steel is an alloy primarily composed of iron and carbon, with trace amounts of other elements. Its exceptional strength, durability, and heat resistance make it a suitable choice for various industrial applications, including boiler and superheater systems.

 

Specification
The specification for ASTM A178 ERW pipes is as follows:
• Outer Diameter: 1/2" - 5"
• Wall Thickness: 0.035" - 0.360"
• Length: Customized

 

Chemical Composition
The chemical composition of ASTM A178 ERW pipes may vary depending on the specific steel grade and manufacturing process. However, the typical composition ranges are as follows:

Element	Composition Range (%)
Carbon (C)	0.06 - 0.18
Manganese (Mn)	0.27 - 0.63
Phosphorus (P)	0.035 (max)
Sulfur (S)	0.035 (max)
Silicon (Si)	0.10 (max)

 

Mechanical Properties
The mechanical properties of ASTM A178 ERW pipes ensure their reliability and performance under high temperatures and pressure conditions. The typical mechanical properties are as follows:

Property	Value
Tensile Strength	325 MPa (min)
Yield Strength	180 MPa (min)
Elongation	35% (min)
Hardness (HRB)	72 (max)

 

Steel Grade
ASTM A178 ERW pipes are available in different steel grades, each designed to meet specific requirements. Some common steel grades used in ASTM A178 ERW pipes are:
1.Grade A
2.Grade C
3.Grade D
The selection of the appropriate steel grade depends on factors such as temperature, pressure, and application-specific requirements.

 

Application
ASTM A178 ERW Carbon Steel Welded Steel Pipes are widely used in boiler and superheater systems in various industries. Their high strength, heat resistance, and excellent weldability make them suitable for transporting high-temperature fluids and gases. These pipes are commonly used in power plants, refineries, chemical plants, and other industrial facilities where reliable and efficient heat transfer is crucial.