ASTM A179 seamless cold-drawn low-carbon steel tubes used in heat-exchangers, condensers, and similar heat-transfer equipment

Product Specification for ASTM A179/SA179 Heat Exchanger Steel Tubes

1. Overview

ASTM A179/SA179 specifies the requirements for seamless cold-drawn low-carbon steel tubes used in heat exchangers, condensers, and similar heat-transfer equipment. These tubes are designed for optimal thermal efficiency, durability, and resistance to corrosion in high-temperature and high-pressure environments.

2. Chemical Composition

The chemical composition of ASTM A179/SA179 steel tubes ensures excellent weldability and mechanical performance. Key elements include:

Note: The low carbon content enhances formability and reduces brittleness, while controlled manganese levels improve strength and hardenability

3. Mechanical Properties

ASTM A179/SA179 tubes are subjected to rigorous cold-drawing and heat-treatment processes to achieve the following mechanical properties:

Key Notes:

• The cold-drawn process ensures a smooth surface finish (critical for heat transfer efficiency)

• Tubes are heat-treated to eliminate residual stresses and enhance dimensional stability.

4. Physical Characteristics

• Surface Finish: High surface smoothness to minimize fouling and maximize heat transfer efficiency.

• Dimensions:   Outer Diameter: 6mm to 140 mm (0.5 in to 5 in)

  •                         Wall Thickness: 1 mm to 25 mm (customizable per application).

• Manufacturing Process: Seamless cold-drawn production to ensure uniform wall thickness and structural integrity.

5. Applications

ASTM A179/SA179 tubes are widely used in:

1. Heat Exchangers and Condensers: For efficient heat transfer in industrial and power generation systems.

2. Boiler Components: Including water walls, superheaters, and economizers in high-pressure boilers.

3. Oil and Gas Refining: Suitable for heat recovery systems and cooling units.

4. Chemical Processing: Resistant to corrosive fluids and high-temperature environments.

6. Compliance and Standards

• ASTM A179/A179M: Primary standard for material composition and mechanical properties.

• ASME SA-179/SA-179M: Compliant with ASME Boiler and Pressure Vessel Code for high-pressure applications.

• Quality Assurance: Tubes undergo non-destructive testing (NDT), hydrostatic testing, and dimensional inspections.

7. Packaging and Handling

• Tubes are coated with anti-rust oil and packed in wooden crates to prevent corrosion during transit.

• Storage recommendations: Dry, ventilated environments to avoid moisture exposure.

Note: Custom specifications (e.g., special lengths, surface treatments) are available upon request. For detailed technical data, refer to ASTM A179/A179M standards or contact the manufacturer.

References

• ASTM A179/A179M Standard Specification213.

• ASME Boiler and Pressure Vessel Code13.

• Manufacturer Technical Data Sheets56.

This document is for informational purposes only. Specifications may vary based on regional standards or customer requirements.