A514 is a high-strength, low-alloy (HSLA) steel grade known for its high yield strength and resistance to wear and impact, making it suitable for applications where a high strength-to-weight ratio is required. A514 is often used in structural applications that demand strength in challenging environments, such as heavy equipment, construction machinery, and welded bridges.
Yield Strength: A514 has a minimum yield strength of 100 ksi (690 MPa), which provides high structural integrity and the ability to withstand heavy loads.
Tensile Strength: It ranges from 110–130 ksi (760–895 MPa), depending on thickness, contributing to the material's resistance to deformation under stress.
Hardness: A514 steel is hardened and tempered, which increases its surface hardness and makes it wear-resistant. It has a Brinell hardness around 235–293, which can vary based on treatment and specific grade requirements.
Formability and Machinability: Despite its strength, A514 can be machined and formed with proper techniques, though it requires preheating for welding, given its high carbon content.
Toughness: A514 has good notch toughness, especially when welded, making it suitable for applications that require resistance to brittle fracture under high-stress or low-temperature conditions.
Corrosion Resistance: While not as corrosion-resistant as stainless steel, A514 can be coated or painted for added protection in corrosive environments.
A514 steel includes multiple grades, identified by letters such as A514 Grade B, A514 Grade E, etc., which differ mainly in thickness and specific mechanical properties, though they all maintain similar yield and tensile strength ranges.
Typical Applications:
Structural and support frames
Heavy equipment components
Bridges and other high-load structures
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