What is the specification of EH36 steel?

EH36 steel is a high-strength structural steel primarily used in the shipbuilding industry. Here are some key specifications of EH36 steel:

EH36 Steel Specifications:

Standard:

EH36 is typically specified according to the ASTM International standards such as ASTM A131 for naval applications.

Chemical Composition:

Carbon (C): 0.18% max

Manganese (Mn): 0.90-1.60%

Phosphorus (P): 0.035% max

Sulfur (S): 0.035% max

Silicon (Si): 0.10-0.50%

Nickel (Ni): 0.40% max

Chromium (Cr): 0.20% max

Molybdenum (Mo): 0.08% max

Vanadium (V): 0.05% max

Aluminum (Al): 0.015% min

Mechanical Properties:

Tensile Strength: 71,000 – 90,000 psi (490-620 MPa)

Yield Strength: 51,000 psi (355 MPa) min

Elongation: 21% min in 8” and 24% min in 2”

Applications:

EH36 steel is commonly used in the construction of ships, barges, marine equipment, offshore structures, and other naval applications where high strength and good weldability are required.

Weldability:

EH36 steel has good weldability characteristics, making it suitable for various welding processes used in shipbuilding and marine construction.

Certification:

EH36 steel may be certified by classification societies like ABS (American Bureau of Shipping) or DNV (Det Norske Veritas) to meet specific industry standards and requirements.

Impact Testing:

EH36 steel typically undergoes impact testing at low temperatures to ensure its toughness and resistance to brittle fracture in harsh marine environments.

These specifications highlight the composition, mechanical properties, applications, and quality standards associated with EH36 steel, a common choice for marine and naval structural applications requiring high strength, durability, and weldability.