ASTM A131 Grade EH32 Shipbuilding Steel Plate

ASTM A131 Grade EH32 Shipbuilding Steel Plate

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Description

Chemical Composition and Mechanical Properties of ASTM A131 Grade EH32

ASTM A131 Grade EH32 is a high-strength structural steel with the following composition and properties:Chemical Composition:

Element Percentage
Carbon (max) 0.18%
Silicon 0.10-0.50%
Manganese 0.90-1.60%
Phosphorus (max) 0.035%
Sulfur (max) 0.035%

Mechanical Properties:

Property Value
Yield Strength (min) 315 MPa
Tensile Strength 440-590 MPa
Elongation (min) 19% in 8″, 22% in 2″

Applications of ASTM A131 Grade EH32 in Shipbuilding and Offshore Structures

EH32 steel is widely used in:

  1. Ship hull structures
  2. Decks and bulkheads
  3. Offshore platforms
  4. Mobile offshore drilling units
  5. Marine equipment and components

Its high strength and excellent low-temperature toughness make it ideal for these applications.

Manufacturing Process and Available Forms of EH32 Steel

EH32 steel is typically manufactured as plate steel. Available dimensions include:

  • Thickness: 0.1875″ – 5.90″ (4.762 – 150 mm)
  • Width: 72″ – 129.9″ (1800 – 3299 mm)
  • Length: 79″ – 1020″ (2000 – 25910 mm)

Comparison of EH32 with Other ASTM A131 Grades

Grade Yield Strength (min) Impact Test Temperature
AH32 315 MPa 32°F (0°C)
DH32 315 MPa -4°F (-20°C)
EH32 315 MPa -40°F (-40°C)

EH32 offers superior low-temperature toughness compared to AH32 and DH32 grades.

Quality Standards and Testing for ASTM A131 Grade EH32

EH32 undergoes rigorous testing, including:

  1. Tensile strength testing
  2. Chemical composition analysis
  3. Charpy V-notch impact testing (31 J @ -40°C)
  4. Ultrasonic testing for internal defects

At HL Steel Company, we ensure that all our ASTM A131 Grade EH32 steel meets or exceeds these quality standards, providing our customers with reliable and high-performance products for their shipbuilding and offshore structural needs.

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