ASTM A214 Gr.C Electric-Resistance-Welded Carbon Steel Tube For Heat-Exchanger And Condenser

ASTM A214 Gr.C Gr.1 Gr.2 Electric-Resistance-Welded Carbon Steel Tube for Heat-Exchanger and Condenser

Material

ASTM A214 is a specification for electric-resistance-welded carbon steel tubes intended for use in heat exchangers and condensers. These tubes are designed to withstand high pressures and temperatures, making them suitable for various industrial applications.

Specification

The specification outlines the requirements for the manufacturing, testing, and performance of the tubes. It ensures that the tubes meet specific mechanical and chemical properties necessary for their intended use.

Key Features

• Electric-Resistance Welding: Ensures strong and reliable welds.
• High Strength: Capable of withstanding high pressures and temperatures.
• Corrosion Resistance: Suitable for various environments, especially in heat exchangers.
• Versatile Applications: Used in power generation, chemical processing, and HVAC systems.

Chemical Composition

Element	Gr.C (%)	Gr.1 (%)	Gr.2 (%)
Carbon (C)	0.18 max	0.20 max	0.25 max
Manganese (Mn)	0.60-0.90	0.60-0.90	0.60-0.90
Phosphorus (P)	0.035 max	0.035 max	0.035 max
Sulfur (S)	0.025 max	0.025 max	0.025 max
Silicon (Si)	0.10-0.40	0.10-0.40	0.10-0.40

Mechanical Properties

Property	Gr.C	Gr.1	Gr.2
Yield Strength (ksi)	30 min	30 min	35 min
Tensile Strength (ksi)	50 min	50 min	55 min
Elongation (%)	30 min	30 min	30 min
Hardness (Rockwell)	B70 max	B70 max	B70 max

Steel Grade

The ASTM A214 specification includes several grades, with Gr.C, Gr.1, and Gr.2 being the most common. Each grade has specific mechanical and chemical properties tailored for different applications.

Application

The primary applications of ASTM A214 tubes include:

• Heat exchangers
• Condensers
• Boiler tubes
• Oil and gas processing
• Chemical processing industries

Possible Alternative Grades

While ASTM A214 is widely used, there are alternative grades that may be suitable depending on the specific requirements of the application. Some of these include:

• ASTM A53: Standard specification for pipe, suitable for welding and bending.
• ASTM A106: Seamless carbon steel pipe for high-temperature service.
• ASTM A179: Seamless cold drawn low carbon steel heat exchanger and condenser tubes.

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