P335GH is a European standard (EN 10028-2) material grade used in the manufacture of pressure vessels and boilers, designed to withstand high-temperature applications. It is a weldable fine-grain steel used primarily for high-temperature pressure systems.
Carbon (C): 0.16-0.20%
Manganese (Mn): 0.80-1.40%
Phosphorus (P): 0.025% max
Sulfur (S): 0.015% max
Silicon (Si): 0.40% max
Aluminum (Al): 0.020% min
Nitrogen (N): 0.012% max
Tensile Strength: 470-630 MPa
Yield Strength: 225-355 MPa, depending on thickness
Elongation: 22-27%, depending on thickness
Impact Energy: Tested at 0°C, with a minimum value typically around 27 Joules
High-Temperature Resistance: P335GH is specifically designed to perform well in high-temperature environments, making it suitable for steam boilers, pressure vessels, and heat exchangers.
Good Weldability: The material offers good weldability, making it suitable for welded pressure vessels and boiler components.
Fine-Grain Structure: The fine-grain structure contributes to improved toughness, especially at low temperatures.
Pressure Vessels: Used in the manufacture of pressure vessels for storing gases or liquids under high pressure.
Boilers: Commonly used in steam boilers and hot water boilers in power plants and industrial facilities.
Heat Exchangers: Suitable for components exposed to high-temperature fluids in heat exchangers.
P335GH is a high-temperature pressure vessel steel with good weldability and mechanical properties, making it a reliable choice for applications in pressure vessels, boilers, and heat exchangers, especially where high temperatures are involved. Its composition and properties are tailored to ensure durability and performance in demanding environments.
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