ASTM A514 Gr B High-Tensile Alloy Steel Plate Guide

ASTM A514 Gr B is a high-tensile, quenched and tempered alloy steel plate known for its exceptional yield strength, toughness, and weldability, making it ideal for structural applications where high performance is required. Under the ASTM A514/A514M standard, Gr B offers a minimum yield strength of 100 ksi (690 MPa) for most thicknesses, providing superior strength-to-weight ratios compared to standard steels.

As a leading manufacturer and exporter, Gangsteel produces premium astm a514 grade b plates, alongside related grades like astm a514 grade e and astm a514 grade q, with global shipping and certifications.

What is ASTM A514 Gr B High-Tensile Alloy Steel Plate?

ASTM A514 Gr B is a low-carbon alloy steel plate that is quenched and tempered to achieve high tensile strength and formability.

It is commonly available in thicknesses from 3/16" to 1-1/4", though it can extend to 6" with adjusted properties, and is used in applications demanding durability and machinability.

This grade excels in high-wear environments due to its alloy composition, offering cost-effective solutions for structural integrity. Gangsteel's ASTM A514/A514M steel plate includes Gr B for customized sizes, ensuring compliance with ASTM standards.

Chemical Composition of ASTM A514 Gr B

The chemical composition of Gr B is optimized for strength and toughness, with controlled elements to enhance performance. Below is the typical composition (in weight %, heat analysis) per ASTM specifications:

This formulation provides better machinability than higher-carbon steels, similar to astm a514 grade f but with balanced alloys for general use.

Mechanical Properties of ASTM A514 Gr B

Gr B exhibits high-tensile properties, with values depending on plate thickness. The table below outlines key mechanical properties:

These attributes ensure excellent fatigue resistance and impact toughness, with an elastic modulus of approximately 190 GPa.

Heat Treatment and Processing for ASTM A514 Gr B

ASTM A514 Gr B requires quenching and tempering to attain its high-tensile properties, typically involving heating to 1650°F (900°C), rapid cooling, and tempering at 1100-1300°F (600-700°C). This process improves weldability and machinability (rating around 0.72), though preheating is advised for welding to prevent cracking. Gangsteel's advanced manufacturing for astm a514 grade b includes precise control, with optional Charpy testing for low-temperature applications.

Applications of ASTM A514 Gr B High-Tensile Alloy Steel Plate

Gr B is widely used in high-stress scenarios due to its tensile strength and durability. Common applications include transport trailers, construction equipment, crane booms, mobile man-lifts, agricultural machinery, and heavy vehicle frames. Its properties suit mining and structural engineering, similar to astm a514 grade h for optimized strength. Gangsteel's plates are exported for these uses, with mill test reports.

FAQ

• What is the tensile strength of ASTM A514 Gr B?Typically 110-130 ksi (760-895 MPa), making it suitable for high-tensile applications.
• How does ASTM A514 Gr B compare to Gr E?Gr B offers balanced machinability for thinner plates, while Gr E has higher chromium for corrosion resistance in thicker sections.
• Is ASTM A514 Gr B weldable?Yes, with good weldability using low-hydrogen electrodes and preheating for thicker plates.
• What are common applications for ASTM A514 Gr B?Includes crane booms, transport trailers, and construction equipment due to its high yield and toughness.
• Where can I source ASTM A514 Gr B plates?Gangsteel manufactures and exports quality plates; inquire about astm a514 grade b for details.