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EH500 | High-Strength Shipbuilding Steel

EH500 | High-Strength Shipbuilding Steel

SteelPRO Group provides EH500 high-strength shipbuilding steel plates in stock.

Class Cert.: ABS/BV/CCS/DNV/KR/LR/NK/RINA/RS/PRS
Material: High-Strength Low-Alloy Steel
Thickness: 6-50 mm, or customized
Width: 900-4800 mm, or customized
Length: 3000-25000 mm, or customized
Condition of Delivery: A/HR/N/CR/Q+T/TMCP, or as request
Stock: In stock
Origin: Hebei/Henan/Jiangsu, China
Port: Qingdao

Description

What Is EH500?

EH500 steel is an ultra-high-strength structural steel designed for shipbuilding and offshore engineering. Its composition includes carbon, silicon, manganese, phosphorus, and sulfur, carefully balanced to ensure excellent strength, weldability, and toughness. “E” stands for toughness level at -40℃, “H” indicates its high strength, while “500” refers to its minimum yield strength of 500 MPa.

This steel offers exceptional impact resistance, remaining tough even in low temperatures down to -40°C. It is also highly weldable and corrosion-resistant, making it suitable for marine environments. With easy processability, EH500 is widely used in shipbuilding, offshore platforms, bridges, construction, and heavy machinery, ensuring stability and durability across industries.

Characteristics of EH500

  • Strong and durable, capable of handling heavy loads.
  • Resistant to corrosion and extreme environments.
  • Offers a high strength-to-weight ratio, balancing performance and efficiency.
  • Excellent weldability, facilitating easy fabrication.
  • Widely used in construction, marine structures, and heavy machinery.

Chemical Compositions

ElementContent (%)
Carbon, C≤ 0.18
Manganese, Mn1.20-1.60
Silicon, Si≤ 0.55
Phosphorus, P≤ 0.020
Sulfur, S≤ 0.010
Chromium, Cr≤ 0.30
Nickel, Ni≤ 0.30
Molybdenum, Mo≤ 0.10
Copper, Cu≤ 0.30
Nitrogen, N≤ 0.012

Physical Properties

PropertyMetricImperial
Density7.85 g/cm³0.283 lb/in³
Melting Point1425–1530 °C2597–2786 °F
Thermal Conductivity43 W/m·K298 BTU·in/(hr·ft²·°F)
Electrical Conductivity10–15% IACS (relative to copper)Same
Specific Heat Capacity460 J/kg·K0.110 BTU/lb·°F
Thermal Expansion Coefficient11.8 × 10⁻⁶ /°C6.56 × 10⁻⁶ /°F
Electrical Resistivity1.25 µΩ·m1.25 × 10⁻⁶ Ω·m

Mechanical Properties

Yield Strength (MPa min.)Tensile Strength (MPa)Elongation (% min.)Test Temperature (°C)Impact Energy (KV J min.)
500610-77016-4033

Note: the impact energy under less than 150mm thickness; longitudinal min impact energy.

Industries & Applications

IndustryApplication
ShipbuildingHull structures, Bulkheads, Deck plates, Stern frames
Offshore EngineeringOil platforms, Subsea pipelines, Offshore cranes, Drilling rigs
Construction MachineryExcavator arms, Bulldozer blades, Crane booms, Dump truck bodies
Mining EquipmentDump truck trays, Conveyor belts, Crusher plates, Mining shovels
Heavy TransportationTrain car bodies, Heavy truck frames, Bridge supports, Tanker bodies
Wind Power IndustryTower structures, Turbine blades, Gearbox components, Base plates
Military ApplicationsArmored vehicles, Naval vessels, Gun mounts, Missile launchers
Pressure VesselsStorage tanks, Boilers, Pressure containers, Reactor vessels

Machining

Heat Treatment

  • Normalizing: Heat to 890-940°C, hold for sufficient time, then air cool to refine grain structure.
  • Quenching: Heat to 880-920°C, hold, then quench in water or oil to increase hardness.
  • Tempering: Reheat to 550-650°C, hold for desired time, and air cool to reduce brittleness and increase toughness.

Surface Finish

  • Mill Finish: As-rolled surface without further treatment.
  • Shot Blasting: Removes mill scale and improves surface texture.
  • Painting/Coating: Applied for corrosion resistance, typically after blasting.
  • Pickling: Acid treatment to remove scale and impurities.
  • Polishing: Provides a smoother surface for specific applications.

*Customization is available upon request.

Our Service

SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!

Our Quality Control

  • Roundness
  • Tolerance
  • Microstructure
  • Non-Destructive Testing
  • Destructive Testing
  • Process Control

Service Integration Processing

  • Welding
  • Metal Fabrication
  • CNC Machining
  • Lathe
  • Forming

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