ASTM B167 N06600 Nickel Alloy Steel Seamless Tube For Power Generation

ASTM B167 is a specification that covers nickel-chromium-based Alloy 600 in the form of seamless tubes. Alloy 600 is a solid-solution strengthened, nickel-chromium alloy with excellent oxidation and corrosion resistance, particularly at high temperatures. This alloy is often used in extreme environments, such as those encountered in heat exchangers, chemical processing, and aerospace applications.

Alloy 600 is a high-performance material known for its high temperature resistance, corrosion resistance, and excellent mechanical properties. It maintains its strength and stability even in environments where temperature fluctuations and high stresses are common.

The tube form of this alloy is typically used in heat exchangers, furnace components, gas turbines, and other high-temperature applications where oxidation and carburization resistance are important.

Chemical Composition:

• Nickel (Ni): 72.0% - 78.0%
• Chromium (Cr): 14.0% - 17.0%
• Iron (Fe): Balance (approximately 6.0% maximum)
• Manganese (Mn): 1.0% maximum
• Silicon (Si): 0.5% maximum
• Copper (Cu): 0.5% maximum
• Carbon (C): 0.15% maximum
• Sulfur (S): 0.015% maximum
• Phosphorus (P): 0.015% maximum
• Titanium (Ti): 0.30% maximum (optional, depending on grade)

Mechanical Properties:

• Tensile Strength: Range: 690 - 1030 MPa (100 - 150 ksi)
• Yield Strength: Minimum: 275 MPa (40 ksi) at room temperature
• Elongation:Minimum: 30% in 2 inches (50.8 mm)
• Hardness: Brinell Hardness: 170 HB (typical value)

Applications:

1. Heat Exchangers: Used in industries such as power generation, chemical processing, and petrochemical plants due to its excellent high-temperature resistance.

2. Furnace Components: It is widely used in industrial furnaces, as it can withstand high temperatures without significant degradation.

3. Gas Turbines: Components in turbines, such as combustion chambers and blades, often require the properties of Alloy 600 for stability and performance at elevated temperatures.

4. Chemical Processing: Alloy 600 is highly resistant to corrosive environments, making it useful in the production of chemicals and other industrial applications.

5. Nuclear Reactors: Due to its resistance to radiation-induced degradation and high-temperature strength, it is used in some nuclear applications.

6. Aerospace: Alloy 600 is used for components exposed to extreme heat and oxidative environments, such as in aircraft and engine components.