The A131/A131M-14 steel grade is a specification for structural steel plates primarily used in ship construction. It is typically used for vessels in the naval, offshore, and marine industries.
Chemical Composition:
– Carbon (C): 0.21% maximum
– Manganese (Mn): 2.5% maximum
– Phosphorus (P): 0.035% maximum
– Sulfur (S): 0.035% maximum
– Silicon (Si): 0.10-0.35%
– Nickel (Ni): 0.40% maximum
– Chromium (Cr): 0.30% maximum
– Molybdenum (Mo): 0.08% maximum
– Vanadium (V): 0.02% maximum
– Copper (Cu): 0.35% maximum
Mechanical Properties:
– Tensile Strength: 58,000-71,000 psi (400-490 MPa)
– Yield Strength: 34,000 psi (235 MPa) minimum
– Elongation in 2 inches: 21% minimum
– Impact toughness: 34 J (25 ft-lbf) minimum at -20°C (-4°F)
Applications:
The A131/A131M-14 steel grade is often used in the construction of ships and other marine structures due to its high strength and toughness properties. It is suitable for various types of vessels, including tankers, bulk carriers, offshore support vessels, and cruise ships. This steel grade is also used in the fabrication of offshore platforms and modules.
Standard Number:
The A131/A131M-14 refers to the ASTM (American Society for Testing and Materials) standard number for this steel grade. This standard provides requirements for the mechanical properties, chemical composition, and heat treatment of structural steel plates used in ship construction.
Corresponding Standards:
The A131/A131M-14 steel grade may have equivalent standards or similar grades in other countries or organizations. It is important to consult the appropriate standards and specifications for specific applications and to ensure compliance with relevant regulations.