P500QL1 is a high-strength, weldable fine-grain structural steel under EN 10028-6, known for excellent mechanical properties after quenching and tempering, offering high yield strength (around 500 MPa minimum), good toughness, and resistance to high temps, making it ideal for boilers, pressure vessels, and heavy machinery.
High strength P500QL1 Pressure Vessel Steel Mechanical properties
| Impact Energy KV2 J min at a temperature in ℃ of | |||||||||
| -60 | -40 | -20 | 0 | +20 | |||||
| <=50 | +QT | 500 | 590-770 | 17 | - | 27 | 40 | 60 | - |
| 50<> | 480 | ||||||||
| 100<> | 440 | 540-720 | |||||||
Standard: EN 10028-6 (Pressure vessel & boiler steels).
Strength: Minimum yield strength of 500 MPa (N/mm²).
Heat Treatment: Quenched and Tempered (Q+T) for enhanced properties.
Weldability: Designed for good weldability.
Applications: Boilers, pressure vessels, construction, heavy equipment.
Tensile Strength (Rm): Ranges from 590-770 MPa (depending on thickness).
Yield Strength (Rp0.2): Around 500 MPa minimum.


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