ASTM A1020 Cold drawn Tube For Heat Exchanger Tube Boiler Tubes
ASTM A1020 is a type of Cold-Drawn Seamless (CDS) steel tube material suitable for heat exchangers and boilers. Its production and performance comply with ASTM standards, featuring excellent toughness, weldability, and corrosion resistance, which enables it to meet the operating requirements of heat exchange and boiler systems.
Material and Specifications
The base material of this product is low-carbon structural steel, which is manufactured into seamless tubes through the Cold-Drawn Seamless (CDS) process. The cold-drawing process ensures the tubes have high dimensional accuracy and a smooth surface finish. In terms of specifications, the outer diameter typically ranges from 1/2 inch to 6 inches (approximately 12.7 mm to 152.4 mm), and the wall thickness is selected within the range of 0.083 inch to 0.5 inch (approximately 2.1 mm to 12.7 mm) according to design requirements, making it adaptable to equipment with different pressure and temperature grades.
Chemical Composition
The chemical composition of ASTM A1020 steel tubes must meet the following requirements, with strict control over elements such as carbon and manganese to ensure the material's processability and stability:
| Element | Content Range(%) |
| Carbon (C) | 0.18 - 0.23 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.10 - 0.35 |
| Nickel (Ni) | ≤ 0.25 |
| Chromium (Cr) | ≤ 0.25 |
| Copper (Cu) | ≤ 0.25 |
Mechanical Properties
At room temperature, the mechanical properties of ASTM A1020 cold-drawn seamless steel tubes must meet the following indicators to ensure they can withstand pressure and loads during installation and service:
| Mechanical Property | Requirement |
| Tensile Strength | ≥ 415 MPa (60,000 psi) |
| Yield Strength | ≥ 240 MPa (35,000 psi) |
| Elongation in 2 inches (50 mm) | ≥ 25% |
Applications
ASTM A1020 cold-drawn seamless steel tubes are mainly used in fields such as heat exchanger tube bundles, boiler heating surface pipelines, and industrial steam pipelines, and are widely applied in petrochemical, electric power, metallurgy, and heating systems. The high-precision dimensions and smooth inner walls achieved by the cold-drawing process can reduce fluid resistance and improve heat exchange efficiency. Meanwhile, its moderate strength and toughness allow it to adapt to temperature fluctuations and pressure conditions of medium and low-pressure boilers and heat exchangers. In addition, its excellent weldability facilitates connection with components such as tube sheets and flanges, ensuring the tightness and reliability of the system.
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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.
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A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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ASTM A1020 Cold drawn Tube Seamless Steel Tube For Heat Exchanger Tube Boiler Tubes Images
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