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The ASTM A556 cold drawn steel tube is a type of carbon steel galvanized oil steel tubing specifically designed for use in heat exchangers. With its unique manufacturing process and material composition, it offers excellent heat transfer characteristics and corrosion resistance. This article provides an overview of the material, specification, key features, chemical composition, mechanical properties, steel grades, applications, and possible alternative grades for ASTM A556 tubes.
ASTM A556 cold drawn steel tubes are made from carbon steel and are galvanized to enhance their durability and resistance to corrosion. These tubes are manufactured according to the specifications set forth by the American Society for Testing and Materials (ASTM). The specific standard for ASTM A556 cold drawn steel tubes is ASTM A556/A556M-18, which covers seamless cold-drawn carbon steel feedwater heater tubes.
The ASTM A556 cold drawn steel tubes offer several key features that make them suitable for heat exchanger applications:
Excellent Heat Transfer: The seamless cold-drawn manufacturing process ensures smooth internal surfaces, which enhances heat transfer efficiency.
Corrosion Resistance: The tubes are galvanized to provide excellent protection against corrosion, thus prolonging their service life in harsh environments.
High Strength: These tubes boast good mechanical properties, including high tensile and yield strength, ensuring structural integrity under extreme operating conditions.
Tight Tolerances: The cold-drawn manufacturing process allows for precise dimensional control, ensuring tight tolerances for seamless fit and optimal performance.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.17 max |
| Manganese (Mn) | 0.40-1.10 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
| Property | Value |
|---|---|
| Tensile Strength | 325 MPa min |
| Yield Strength | 180 MPa min |
| Elongation | 35% min |
| Hardness | 68 HRB (max) |
ASTM A556 cold drawn steel tubes are available in different steel grades, including Grade A2, Grade B2, and Grade C2. Each grade has specific chemical and mechanical properties, ensuring suitability for different heat exchanger applications.
The ASTM A556 cold drawn steel tubes are widely used in various heat exchanger applications, including:
Power Plants: These tubes are commonly employed in condensers, feedwater heaters, and other heat transfer equipment used in power generation facilities.
Oil and Gas Industry: The tubes find applications in oil refineries, where they are used for heat exchangers in processing units, such as distillation columns and reactors.
Chemical Processing: ASTM A556 tubes are utilized in chemical plants for heat exchangers involved in the production of different chemicals and petrochemicals.
HVAC and Refrigeration: These tubes are commonly found in heat exchangers of heating, ventilation, air conditioning (HVAC) systems, and refrigeration equipment.
While the ASTM A556 cold drawn steel tubes are widely used, there exist alternative grades that can be considered based on specific requirements. Some possible alternative grades include ASTM A179, ASTM A192, and ASTM A214 tubes. These alternatives have similar or even superior properties and may be chosen depending on factors such as availability, cost, and the specific needs of the heat exchanger application.
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.
A: manufacturer,also can do trading.
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.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
