ASTM A192 is a standard specification for seamless carbon steel boiler tubes. It is particularly designed for high-pressure service in the boiler and heat exchanger industries. Here are some key properties and characteristics of ASTM A192 material:

Mechanical Properties

Tensile Strength: Typically ranges from 70,000 to 90,000 psi (approximately 480 to 620 MPa).

Yield Strength: Minimum yield strength is around 30,000 psi (approximately 205 MPa).

Elongation: Generally, elongation at break is about 30% in 8 inches (200 mm) or 25% in 2 inches (50 mm).

Chemical Composition

The chemical composition for ASTM A192 includes:

Carbon (C): 0.08% max

Manganese (Mn): 0.30% to 0.60%

Phosphorus (P): 0.035% max

Sulfur (S): 0.025% max

Iron (Fe): Balance

Applications

Primarily used for manufacturing boiler tubes in high-pressure environments.

Suitable for power generation, petrochemical, and heat exchanger applications.

Additional Characteristics

Heat Treatment: The tubes can be normalized or stress relieved to improve mechanical properties.

Surface Finish: The specification requires a standard of surface finish that is free from defects and suitable for high-pressure applications.