EN10028-6 P460QH Pressure Vessel Steel Plates
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EN10028-6 P460QH pressure vessel steel plates
GNEE STEEL supplies EN10028-6 P460QH pressure vessel steel plates, a high-performance quenched and tempered fine-grain steel, widely used in industries requiring exceptional strength and durability.
What is EN10028-6 P460QH Steel Plate?
P460QH is a European standard pressure vessel steel plate, produced according to EN10028-6:2017. This plate is designed for high-pressure applications and delivered in a quenched and tempered condition to ensure outstanding mechanical and welding properties.
Grades in EN10028-6 Standard
The EN10028-6 standard includes various grades, such as:
P355Q, P355QH, P355QL1, P355QL2
P460Q, P460QH, P460QL1, P460QL2
P500Q, P500QH, P500QL1, P500QL2
P690Q, P690QH, P690QL1, P690QL2
Each grade is tailored for specific temperature and pressure conditions, making them suitable for a range of demanding applications.
Key Features of P460QH Steel Plate
High Strength & Toughness: Quenched and tempered for enhanced mechanical properties.
Excellent Weldability: Suitable for complex fabrications without compromising strength.
Low-Temperature Resistance: The QH designation ensures performance in low temperatures (0°C to -20°C).
Understanding the Designations
"P": Pressure vessel steel
"Q"/"QH": Quenched and tempered, suitable for low temperatures (0°C to -20°C)
"QL1": For temperatures as low as -40°C
"QL2": For extreme low temperatures down to -60°C
P460QH P460QL1 P460QL2 Steel Performance Comparison Table
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Temperature Resistance |
|---|---|---|---|
| P460QH | 460 | 570 - 720 | 0°C to -20°C |
| P460QL1 | 460 | 570 - 720 | -40°C |
| P460QL2 | 460 | 570 - 720 | -60°C |
Real-World Project Cases
Nuclear Power Plant, France: Supplied 1,500 tons of P460QH steel plates for high-pressure reactors, ensuring structural integrity under extreme conditions.
Oil & Gas Refinery, UAE: Delivered 1,200 tons of P460QH plates for pressure vessels, withstanding high temperatures and pressures in a critical processing unit.
Chemical Plant, Poland: Provided 800 tons of P460QL2 plates for low-temperature storage tanks, guaranteeing performance at -60°C.
P460QH Vessel Plate Chemical Composition
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B |
| max 0.18 | max 0.5 | max 1.7 | max 1 | max 0.025 | max 0.01 | max 0.5 | max 0.5 | max 0.08 | max 0.015 | max 0.05 | max 0.03 | max 0.3 | max 0.05 | max 0.005 |
P460QH Boiler Plate Mechanical Property
| Nominal thickness (mm): | to 100 | 100 - 150 |
| Rm - Tensile strength (MPa) (+QT) | 550-720 | 500-670 |
| Nominal thickness (mm): | to 50 | 50 - 100 | 100 - 150 |
| ReH - Minimum yield strength (MPa) (+QT) | 460 | 440 | 400 |
| KV - Impact energy (J) transverse, (+QT) | -20° 27 |
0° 40 |
+20° 60 |
| KV - Impact energy (J) longitud., | -20° 40 |
0° 60 |
+20° 80 |
| A - Min. elongation at fracture (%) (+QT) | 19 |
Impact and High-Temperature Performance of P460QH Steel Plate
Impact Performance: P460QH steel plate demonstrates excellent low-temperature toughness, with an impact energy value of 40J at a test temperature of -20°C.
High-Temperature Performance: Even in high-temperature environments, P460QH steel plate maintains high yield strength. For example, its yield strength at various temperatures is as follows:
50°C: 445 MPa
100°C: 425 MPa
150°C: 405 MPa
200°C: 380 MPa
250°C: 360 MPa
300°C: 340 MPa
P460QH Steel Boiler Plate Physical Properties
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J/kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 817(≥) | 116(≥) | 21 | 33 | 13 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 234 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0)N/mm2 |
Creep rupture strength (10000h) (Rp1,0)N/mm2 |
|||||
| 419 | 681 | 796 |
Boiler Steel Plate Product Iamge
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We support multi-specification, multi-brand pressure vessel steel plate customization, if you have P460QH Boiler Quality Plates or other vessel steel plate product customization needs, please contact us!
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