A387 Grade 5 Class1 steel for High-Temperature Pressure Vessels

A387 Grade 5 Class 1 Pressure Vessel Steel Description

A387 Grade 5 Class 1 pressure vessel steel stands out for its robust performance in high-temperature and corrosive environments. Its carefully engineered chemical composition and mechanical properties make it a reliable choice for critical applications in oil, gas, petrochemical, and power generation industries. A387 Grade 5 Class 1 is defined under the ASTM A387/A387M standard, which outlines requirements for chromium-molybdenum alloy steel plates used in welded boilers and pressure vessels.

A387 Gr.5 Cl.1 pressure vessel steel is a preferred material in industries where equipment operates under high temperatures and pressures. Key applications include:

• Oil and Gas Industry: Used in pressure vessels, heat exchangers, and separators for processing liquids and gases.
• Petrochemical Industry: Ideal for reactors and storage tanks exposed to corrosive substances.
• Power Generation: Employed in boilers and steam drums for reliable performance at elevated temperatures.
• Chemical Processing: Suitable for equipment like spherical tanks and high-pressure pipes in chemical plants.

A387 Grade 5 Class 1 Pressure Vessel Steel Datasheet

Thickness

• Range: 3/16 inch (4.76 mm) to 6 inches (152.4 mm).
• Custom: Thicker plates possible, subject to mechanical property compliance.

Width

• Range: 48 inches (1,219 mm) to 120 inches (3,048 mm).
• Custom: Non-standard widths available upon request, mill-dependent.

Length

• Range: 96 inches (2,438 mm) to 480 inches (12,192 mm).
• Custom: Specific lengths can be supplied, based on mill capabilities.

Additional Notes

• Weight: Varies by dimensions (density ~7.85 g/cm³).
• Processing: Plates can be cut or shaped for specific applications.
• Certification: Supplied with mill test certificates per ASTM A387 standards.

For custom dimensions, contact suppliers like SteelPRO Group or Masteel for detailed specifications.

A387 Grade 5 Class 1 Pressure Vessel Steel Chemical composition

The chemical composition of A387 Grade 5 Class 1 is carefully controlled to ensure optimal performance. The table below details the typical composition based on product analysis, expressed as weight percentages.

A387 Grade 5 Class 1 Pressure Vessel Steel Mechanical Properties

The mechanical properties of ASTM A387 Gr.5 Cl1 Chromoly alloy steel plate ensure its suitability for high-temperature pressure vessel applications. These properties are tested per ASTM standards, including tension and impact tests.

Equivalent Grade of A387 Grade 5 Class 1 Pressure Vessel Steel

A387 Grade 5 Class 1 has equivalents in other international standards, allowing for flexibility in global applications. The table below lists comparable materials.