ASTM A213 Stainless Steel Tube: Austenitic Alloy Steel Seamless Tubes For Boilers And Heat Exchangers
Material and Specification
The ASTM A213 Stainless Steel Tube is an austenitic alloy steel tube designed specifically for use in boilers and heat exchangers. This seamless tube is meticulously manufactured to meet stringent standards, ensuring the highest quality and performance.
The material used in the ASTM A213 Tubes is a combination of iron, chromium, and nickel, which imparts excellent corrosion resistance and high-temperature strength. Additional elements such as molybdenum and nitrogen are also present to enhance specific properties. These tubes are available in various grades, including TP304, TP316, TP321, TP347, and more, each with its own unique composition and characteristics.
Chemical Composition
The chemical composition of ASTM A213 Stainless Steel Tubes is crucial in determining their suitability for specific applications. The table below presents the typical chemical composition of these tubes:
| Grade | C% | Mn% | P% | S% | Si% | Ni% | Cr% | Mo% |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-11.0 | 18.0-20.0 | - |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 9.0-12.0 | 17.0-20.0 | - |
| TP347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 9.0-13.0 | 17.0-20.0 | 10(C+N)-1.10 |
Note: The above composition ranges may vary depending on the specific grade and manufacturer.
Mechanical Properties
The mechanical properties of the ASTM A213 Stainless Steel Tubes are vital to gauge their strength and performance under various conditions. The table below showcases the typical mechanical properties of these tubes:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| TP304 | 515 min | 205 min | 35 min | 90 max |
| TP316 | 515 min | 205 min | 35 min | 90 max |
| TP321 | 515 min | 205 min | 35 min | 90 max |
| TP347 | 515 min | 205 min | 35 min | 90 max |
Application
ASTM A213 Stainless Steel Tubes find wide applications in the manufacturing and operation of boilers and heat exchangers. Due to their excellent corrosion resistance, high-temperature strength, and weldability, these tubes are the preferred choice for harsh and demanding environments.
Whether it's in power plants, chemical processing, oil refineries, or other industrial applications, ASTM A213 Stainless Steel Tubes provide reliable performance, ensuring efficient heat transfer while maintaining structural integrity. They are suitable for both high and low-temperature services and can withstand aggressive media.
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