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The ASTM B167 specification covers nickel-chromium-iron alloys (Inconel 690) in the form of seamless steel pipes specifically designed for steam generator applications. These pipes are manufactured using high-quality materials and adhere to the strict standards set by ASTM International.
The Inconel 690 seamless steel pipes exhibit several key features that make them ideal for steam generator applications:
High Temperature Resistance: Inconel 690 offers exceptional resistance to high temperatures, making it suitable for use in steam generators where heat and pressure are involved.
Corrosion Resistance: These pipes possess excellent resistance to corrosion, including oxidation and scaling, which is crucial for maintaining the integrity and longevity of steam generators.
Strength and Durability: Inconel 690 seamless steel pipes have high strength and durability, allowing them to withstand the demanding conditions of steam generator environments.
Seamless Construction: The seamless design of these pipes ensures a smooth and uninterrupted flow of steam, minimizing the risk of leaks and enhancing overall efficiency.
The chemical composition of Inconel 690 seamless steel pipes is as follows:
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.0 - 63.0 |
| Chromium (Cr) | 27.0 - 31.0 |
| Iron (Fe) | 7.0 - 11.0 |
| Manganese (Mn) | Max 0.50 |
| Silicon (Si) | Max 0.50 |
| Carbon (C) | Max 0.05 |
| Sulfur (S) | Max 0.015 |
| Phosphorus (P) | Max 0.015 |
The mechanical properties of Inconel 690 seamless steel pipes are as follows:
| Property | Value |
|---|---|
| Tensile Strength | 85 ksi (586 MPa) |
| Yield Strength (0.2% offset) | 40 ksi (276 MPa) |
| Elongation | 30% |
| Hardness | HRB 88 |
Inconel 690 is the designated steel grade for these seamless steel pipes, as per the ASTM B167 specification.
The ASTM B167 Inconel 690 seamless steel pipes find extensive application in steam generator systems. They are specifically designed to handle the high temperatures, pressures, and corrosive environments encountered in steam generation processes. These pipes are used for conveying steam within the generator, ensuring efficient and reliable operation.
While Inconel 690 is a highly suitable material for steam generator applications, there are alternative grades that can be considered based on specific requirements. Some possible alternative grades include Inconel 601, Inconel 617, and Inconel 625. These alloys offer similar high-temperature and corrosion resistance properties, but their selection should be based on the specific needs and operating conditions of the steam generator system.
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.