What is ASTM A514 Steel? Technical Data and Properties

What is ASTM A514 Steel? Technical Data and Properties

ASTM A514 steel is a high-yield-strength, quenched and tempered alloy steel plate designed for structural applications requiring superior strength, toughness, and weldability. Developed under the ASTM A514/A514M standard, it is commonly used in welded bridges, construction equipment, mining machinery, and other heavy-duty structures where weight reduction and high performance are critical.

As a leading manufacturer and exporter, Gangsteel produces premium ASTM A514/A514M steel plate to meet global demands, ensuring compliance with rigorous specifications.

Overview of ASTM A514 Steel

ASTM A514 steel plates are alloyed with elements like chromium, molybdenum, and nickel to enhance their mechanical properties after quenching and tempering processes. The standard covers multiple grades, each optimized for different thickness ranges and applications. For example, lower grades like astm a514 grade a are suitable for thinner plates, while higher grades such as astm a514 grade q handle thicker sections with maintained strength.

Key features include:

• High yield strength: Typically 100 ksi (690 MPa) minimum.
• Excellent weldability when proper procedures are followed.
• Good formability and machinability in the tempered state.

Gangsteel's offerings include specialized grades like astm a514 grade f for abrasion-resistant applications and astm a514 grade e for impact-heavy environments.

Chemical Composition of ASTM A514 Steel

The chemical makeup of ASTM A514 varies by grade to achieve specific properties such as corrosion resistance and hardness. Below is a table detailing the composition (in weight %) for select grades, based on ASTM specifications:

Note: Values are maximum unless a range is specified; dashes indicate no requirement. For additional grades like astm a514 grade j, astm a514 grade k, astm a514 grade m, astm a514 grade r, astm a514 grade t, and astm a514 grade c, compositions are similar but tailored for specific uses.

Mechanical Properties of ASTM A514 Steel

ASTM A514 exhibits outstanding mechanical properties, making it suitable for high-stress environments. The following table outlines typical values across grades, which may vary slightly by thickness:

Table 1

Additional properties include an elastic modulus of approximately 190 GPa (27 x 10^6 psi) and good fatigue resistance. For instance, astm a514 grade s maintains a minimum elongation of 16% and hardness of 235-293 HBW.

Heat Treatment and Additional Properties

ASTM A514 steel undergoes quenching and tempering to achieve its high strength, typically heated to 1650°F (900°C) and tempered between 1100-1300°F (600-700°C). This results in excellent toughness, with Charpy V-notch impact values often exceeding 20 ft-lb at -50°F for certain grades. Thermal properties include a specific heat capacity of about 470 J/kg-K and thermal conductivity of 37 W/m-K.

Gangsteel's ASTM A514/A514M steel plate is produced with precise control over these properties, ensuring reliability for applications in offshore platforms and heavy vehicles. For custom requirements, contact us for detailed mill test reports.