P500Q is a quenched and tempered, fine-grained, weldable structural steel grade specified in European standard EN 10028‑6. The designation "P" indicates its primary application in pressure-bearing equipment, while "500" represents the minimum yield strength of 500 MPa. The "Q" suffix denotes that the steel has undergone specific quenching and tempering processes to achieve a combination of high strength, good toughness, and excellent weldability. With a material number of 1.8873, P500Q is commonly used in the fabrication of high-pressure vessels, boilers, and other critical components in the nuclear, petrochemical, and oil and gas industries. Its mechanical properties remain stable across a range of thicknesses, and it typically exhibits a maximum hardness of approximately 30 HRC.
Mechnical property for P500Q steel plate:
| Thickness (mm) | |||
| P500Q | ≤ 50 | > 50 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 500 | 480 | 440 |
| ≤ 100 | > 100 | ||
| Tensile strength (Mpa) | 590-770 | 540-720 | |
Chemical composition for P500Q steel plate (Heat Analysis Max%)
| Main chemical elements composition of P500Q steel plate | |||||||
| C | Si | Mn | P | S | B | N | Cr |
| 0.18 | 0.60 | 1.70 | 0.025 | 0.015 | 0.005 | 0.015 | 1.00 |
| Cu | Mo | Nb | Ni | Ti | V | Zr | |
| 0.30 | 0.70 | 0.05 | 1.50 | 0.05 | 0.08 | 0.15 | |
Process Characteristics of P500Q Steel
Core Q&T Process:
The quenching and tempering (Q&T) process is the key. Rapid quenching forms a high-strength martensitic structure, while subsequent tempering effectively reduces brittleness, achieving a balanced combination of strength and toughness.
Controlled Rolling Technology:
Applied during hot rolling, with precise control of heating temperature and deformation. This refines the grain size, enhancing the steel's toughness and structural uniformity.
TMCP Optimization:
Adopts thermo-mechanical controlled processing (TMCP), optimizing the microstructure through strict management of temperature and cooling rate.
Microalloying Enhancement:
Adds microalloying elements (Nb, V, Ti) to further refine grains and improve mechanical stability of the steel.
Adaptable Welding Processes:
Compatible with common welding methods such as SMAW, GMAW, and SAW. Preheating and post-weld heat treatment (PWHT) are required to prevent cold cracking and reduce residual stress.
Integrated Non-Destructive Testing:
Incorporates non-destructive testing (UT, MPI) into the whole process to ensure no internal or surface defects.
Precise Process Coordination:
All processes are precise, controllable and mutually coordinated, guaranteeing P500Q's stable performance in high-pressure and harsh working conditions.
applications
• Pressure vessels and boilers
High-pressure storage tanks, reactor vessels, boiler drums, and other pressure-bearing components in power plants, refineries, and chemical plants.
• Oil and gas industry equipment
Large spherical or cylindrical storage tanks for oil, gas, and LPG; high-pressure pipeline components and manifolds.
• Chemical and petrochemical processing equipment
Reactors, heat exchangers, separators, and columns operating under high pressure and/or high temperature.
• Power generation equipment
Boiler components, steam headers, pressure parts in thermal and nuclear power plants.
• Marine and offshore equipment
Shipboard boilers, pressure tanks, and offshore platform pressure vessels exposed to harsh marine environments.
• General industrial high-pressure equipment
Multi-layer high-pressure vessels, hydraulic accumulators, and other heavy-duty pressure components.
Advantages of P500Q Steel
High Mechanical Strength: Boasts a minimum yield strength of 500 MPa, providing excellent load-bearing capacity and structural integrity, fully meeting the strength requirements of high-pressure equipment.
Balanced Strength and Toughness: Through precise quenching and tempering processes, it achieves a perfect balance between high strength and good toughness, avoiding brittleness and ensuring reliable performance under complex loads.
Excellent Weldability: Compatible with common industrial welding processes (SMAW, GMAW, SAW, etc.), with low welding crack sensitivity. Matching preheating and PWHT processes can further ensure welding joint quality and structural reliability.
Stable Performance: Controlled rolling and microalloying technology ensure uniform microstructure and stable mechanical properties across different thicknesses and operating environments, with no significant performance degradation.
Good Pressure-Bearing Capacity: Optimized process design makes it suitable for long-term service under high-pressure conditions, with strong resistance to pressure impact and fatigue, ideal for pressure vessels and boilers.
Wide Environmental Adaptability: Can adapt to moderate high-temperature, humid and mild corrosive environments (after proper anti-corrosion treatment), and is widely used in multiple industrial fields such as petrochemical and power generation.
Reliable Quality Assurance: Strict process control and integrated non-destructive testing ensure no internal or surface defects, with stable product quality and high pass rate.
For more details about GNEE's steel products, contact us at beam@gneesteelgroup.com. We look forward to working with you.
What operating systems are compatible with the P500Q?
The P500Q is compatible with Windows 10/11, macOS 12 and above, and Android 10.0+ operating systems. It can seamlessly connect with these systems via Bluetooth or USB, ensuring smooth data synchronization and operation.
What should I do if the P500Q fails to turn on?
If the P500Q fails to turn on, first check if the battery is fully charged. If the battery is low, charge it for 30 minutes and try again. If it still doesn't turn on, press and hold the power button for 10 seconds to force a restart.
Is the P500Q equipped with a display screen?
Yes, the P500Q is equipped with a 2.4-inch color LCD display screen. It can clearly show real-time detection data, device status, and operation prompts, allowing users to obtain information without connecting to other devices.
Can the P500Q be used in high-temperature environments?
The P500Q can work in environments with temperatures ranging from -10℃ to 50℃. It is not suitable for use in high-temperature environments above 50℃, as this may damage the internal components and affect its normal operation.
What is the storage capacity of the P500Q?
The P500Q has a built-in 16GB storage capacity, which can store up to 1 million sets of detection data. It also supports expandable storage via a microSD card, with a maximum expandable capacity of 128GB.
How to view the historical data stored in the P500Q?
You can view historical data by connecting the P500Q to a computer or a supporting mobile app. Open the dedicated software, select "Historical Data", set the time range, and the data will be displayed in the form of tables or charts for easy viewing.
What is the main function of the P500Q device?
The main function of the P500Q is to provide high-precision data detection and real-time transmission. It is widely used in industrial monitoring, with stable performance and quick response to ensure accurate data support for production.
Does the P500Q have a waterproof function?
The P500Q has an IP65 waterproof rating, which means it can resist dust and low-pressure water jets from all directions. It cannot be submerged in water for a long time, so avoid using it in heavy rain or underwater environments.
How to connect the P500Q to a computer via USB?
Connect the P500Q to a computer using the matching USB cable. The computer will automatically recognize the device. If no recognition occurs, install the driver from the official website, then restart the computer to complete the connection.
How to calibrate the P500Q to ensure data accuracy?
To calibrate the P500Q, first turn on the device, enter the settings menu, select "Calibration", and follow the on-screen prompts to place it in the standard environment. Wait for 2-3 minutes until the calibration is completed successfully.