GB/T 30059 N08800 Seamless Corrosion-Resisting Incoloy Alloy Tubes For Heat Exchanger
GB/T 30059 Incoloy 800 800H 825 600 690 Seamless Corrosion-Resisting Incoloy Alloy Tubes For Heat-Exchanger
Material
Incoloy alloys are a family of high-performance alloys primarily composed of nickel, chromium, and iron. These alloys are designed to withstand high temperatures and resist oxidation and corrosion, making them ideal for heat exchanger applications in various industries.
Specification
The GB/T 30059 standard specifies the requirements for seamless corrosion-resisting Incoloy alloy tubes, including dimensions, mechanical properties, and chemical composition. The standard covers several grades, including Incoloy 800, 800H, 825, 600, and 690.
Key Features
- High Corrosion Resistance: Excellent resistance to oxidation and carburization.
- High-Temperature Strength: Maintains strength and stability at elevated temperatures.
- Versatility: Suitable for a wide range of applications, including chemical processing and power generation.
- Seamless Construction: Provides enhanced durability and reliability in service.
Chemical Composition
| Alloy Grade | Ni (%) | Cr (%) | Fe (%) | Mo (%) | Ti (%) | C (%) | Mn (%) | Si (%) |
|---|---|---|---|---|---|---|---|---|
| Incoloy 800 | 30-35 | 19-23 | Bal. | - | - | 0.05 max | 1.5 max | 1.0 max |
| Incoloy 800H | 30-35 | 19-23 | Bal. | - | 0.85-1.20 | 0.05 max | 1.5 max | 1.0 max |
| Incoloy 825 | 38-46 | 19.5-23.5 | Bal. | 2.5-3.5 | - | 0.05 max | 1.5 max | 1.0 max |
| Incoloy 600 | 58-63 | 14-17 | Bal. | - | - | 0.15 max | 1.0 max | 0.5 max |
| Incoloy 690 | 58-63 | 20-23 | Bal. | 8-10 | - | 0.05 max | 1.0 max | 0.5 max |
Mechanical Properties
| Alloy Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| Incoloy 800 | ≥ 205 | 480-620 | ≥ 30 | ≤ 200 |
| Incoloy 800H | ≥ 205 | 480-620 | ≥ 30 | ≤ 200 |
| Incoloy 825 | ≥ 240 | 550-750 | ≥ 30 | ≤ 200 |
| Incoloy 600 | ≥ 240 | 520-750 | ≥ 30 | ≤ 200 |
| Incoloy 690 | ≥ 310 | 690-860 | ≥ 30 | ≤ 200 |
Steel Grade
The steel grades covered under GB/T 30059 include:
- Incoloy 800
- Incoloy 800H
- Incoloy 825
- Incoloy 600
- Incoloy 690
Application
Incoloy alloy tubes are widely used in various applications, including:
- Heat exchangers in chemical processing plants
- Oil and gas industry equipment
- Power generation systems
- Nuclear reactors
- Pollution control equipment
Possible Alternative Grades
While Incoloy alloys are preferred for their specific properties, alternative grades may include:
- Inconel 600: Similar properties with higher nickel content.
- Hastelloy C-276: Offers superior corrosion resistance in harsh environments.
- Monel 400: Suitable for marine applications with good resistance to seawater.
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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.
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