ASTM B564 Inconel 600 / UNS N06600 Nickel Alloy Steel Forged Welding Neck Flange
Overview:
The ASTM B564 UNS N06600 alloy is used in a variety of corrosion resisting applications. The high nickel content of Alloy 600 provides a level of resistance to reducing environments, while the chromium content of the material provides resistance to weaker oxidizing environments. the material provides exceptional resistance to chloride-ion stress-corrosion cracking.
The high nickel content of Alloy 600 provides good resistance to moderate levels of reducing conditions. The nickel content of the alloy renders the alloy extremely resistant to chloride-ion stress corrosion cracking. Alloy 600 is one alloy used in solutions of magnesium chloride.
Similarly, the chromium content of Alloy 600 is an improvement over Alloy 200 (commercially pure nickel). In strong oxidizing solutions, like hot, concentrated nitric acid, Alloy 600 has poor resistance.
Alloy 600, Inconel 600 Flange is relatively unattacked by the majority of neutral and alkaline salt solutions.It is used in some caustic environments.
Alloy 600, Inconel 600 Flange resists steam and mixtures of steam, air, and carbon dioxide. The alloy has excellent oxidation resistance to about 2100 °F (1149 °C). The Nickel content of the alloy renders, it subject to attack at elevated temperatures in sulfur-containing atmospheres.
Specification:
| Standard | ASTM B564; ASME SB564 |
| Grades | Inconel 600; UNS N06600 |
| Type | Welding Neck Flange |
| Size | DN15-DN1000 or customized |
| Wall Thickness | SCH5S-SCH.XXS |
| Class | 150#; 300#; 400#; 600#; 900#; 1500#; 2500# |
| Flange Face | Raise Face; Flat Face; Ring Type Joint |
| Packing | Plywood case/Pallet |
Chemical composition:
| Grade | Ni | Cu | Fe | Mn | C | Si | S | Cr |
| UNS N06600 | 72.0 min. | 0.5 max. | 6.0-10.0 | 1.0 max. | 0.10 max. | 1.0 max. | 0.015 max. | 21.5-24.5 |
Mechanical Properties:
| Grade | Tensile Strength min, MPa | Yield Strength
min, MPa | Elongation in 2 in.
or 50mm, min (%) |
| UNS N06600 | 552 | 241 | 30 |
Application:
1. High-temperature environments: Inconel 600 welding neck flanges are often used in applications where high temperatures are involved, such as in furnace components, heat exchangers, and steam generators.
2. Corrosive environments: Due to its corrosion resistance, N06600 welding neck flanges are suitable for use in corrosive environments, including chemical processing plants, marine industries, and offshore oil and gas platforms.
3. Cryogenic applications: Inconel 600 flanges can also be used in cryogenic applications, such as in liquefied natural gas (LNG) storage tanks and processing equipment, where low temperatures are involved.
4. Aerospace industry: The high strength and resistance to oxidation of Inconel 600 make it a suitable material for aerospace applications, including in aircraft engines, gas turbines, and rocket engines.
5. Power generation: N06600 welding neck flanges are used in power generation facilities, such as in gas turbine components, nuclear power plants, and coal-fired power plants, where high temperatures and corrosive conditions are present.
