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Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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In the world of manufacturing, stainless steel is widely recognized for its versatility and durability. One specific application where stainless steel plays a crucial role is in feedwater heaters. These heaters are essential components in power plants, as they preheat the feedwater before it enters the boiler, maximizing efficiency and reducing energy consumption. Among the various types of stainless steel tubes used in feedwater heaters, welded ferritic stainless steel tubes are commonly employed.
The material and specifications for welded ferritic stainless steel tubes for feedwater heaters are defined by the GB/T 30065 standard. This standard provides detailed guidelines for the production and application of these tubes, ensuring their quality and performance. It outlines the essential characteristics, chemical composition, mechanical properties, and other crucial parameters necessary for manufacturing and utilizing these tubes effectively.
Welded ferritic stainless steel tubes for feedwater heaters possess several key features that make them suitable for this specific application. These features include:
Corrosion Resistance: Stainless steel inherently resists corrosion due to the presence of chromium in its composition, making it ideal for feedwater heaters where water contact is constant.
High Temperature Resistance: The tubes can withstand high temperatures without undergoing significant deformation or damage, ensuring long-term stability and reliability in feedwater heaters.
Weldability: These tubes exhibit excellent weldability, allowing for seamless and robust connections during fabrication.
Durability: Welded ferritic stainless steel tubes have a long service life and require minimal maintenance, making them a reliable choice for feedwater heater applications.
The chemical composition of welded ferritic stainless steel tubes for feedwater heaters is as follows (Table 1):
| Elements | C | Si | Mn | P | S | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| Composition (%) | 0.03 | 0.30 | 1.50 | 0.040 | 0.020 | 10.5-15.0 | 1.00 | 0.020 |
Table 1: Chemical composition of welded ferritic stainless steel tubes for feedwater heaters
The mechanical properties of welded ferritic stainless steel tubes for feedwater heaters are specified in Table 2:
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| Minimum Value | 415 | 205 | 20 |
Table 2: Mechanical properties of welded ferritic stainless steel tubes for feedwater heaters
The steel grade used for these welded ferritic stainless steel tubes is GB/T 30065. This grade ensures the tubes meet the specific requirements of feedwater heater applications, including resistance to corrosion, high temperatures, and mechanical stress.
Welded ferritic stainless steel tubes, conforming to the GB/T 30065 standard, find extensive application in feedwater heaters within power plants. These tubes are vital in efficiently preheating the feedwater, reducing energy consumption, and maximizing the overall performance of the power generation system.
While GB/T 30065 is an excellent standard for welded ferritic stainless steel tubes, several alternative grades might be suitable depending on specific application requirements. These alternative grades include but are not limited to ASTM A268, EN 10217-7, and JIS G3459. Manufacturers and engineers should evaluate these grades to determine the most suitable option based on factors such as corrosion resistance, temperature resistance, and mechanical properties.
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.
