P420M is a non-alloy fine-grained structural steel compliant with European standard EN 10028-5, tailored for pressure vessel components. Produced via the Thermo-Mechanical Controlled Process, it combines controlled rolling and cooling to refine microstructure without post-normalizing, delivering reliable strength, toughness and dimensional stability for harsh operating conditions.
GNEE offers the P420M boiler plate specification:
Thickness: 6MM to 300MM or as per your requirement;
Width: 1500 mm to 4050 mm or as per your requirement;
Length: 3000 mm to 15000 mm or as per your requirement.
P420M steel plate chemical composition:(%)
|
Grade |
P420M max % |
element |
P420M max % |
|
C |
0.16 |
Mo |
0.20 |
|
Si |
0.50 |
Nb |
00.05 |
|
Mn |
1.70 |
Ni |
0.50 |
|
P |
0.025 |
TI |
0.05 |
|
S |
0.020 |
Vi |
0.10 |
|
AL |
0.020 min |
|
|
|
N |
0.020 |
|
|
P420M steel mechanical property:
|
grade |
statue |
thickness |
Yield strength |
Tensile strength |
Elongation |
|
(mm) |
MPa (min) |
MPa |
% (min) |
||
|
|
|
|
|
||
|
P420M |
Normalized |
≤ 16 |
420 |
500-660 |
19 |
|
16> to ≤40 |
400 |
500-660 |
19 |
||
|
40> to ≤63 |
390 |
500-660 |
19 |
Applications
Pressure Vessel Manufacturing: As a core application field, P420M is widely used to produce pressure vessels and their key components, such as storage tanks, reaction vessels, and heat exchangers. These equipment are essential in industries that involve medium storage, reaction, and heat transfer under certain pressure conditions.
Petrochemical Industry: It is applied in the fabrication of pipelines, separators, and refining equipment. The steel's excellent performance ensures safe operation in environments with corrosive media, temperature changes, and high pressure during oil extraction, refining, and chemical processing.
Energy Sector: Suitable for manufacturing boiler components, steam pipelines, and power generation equipment in thermal power plants, nuclear power auxiliary systems, and renewable energy projects. It can withstand long-term operation under high-temperature and high-pressure conditions stably.
Heavy Machinery and Engineering: Used to produce structural parts of heavy machinery, such as hydraulic cylinders, pressure-bearing frames, and engineering vehicle components. Its good toughness and strength meet the load-bearing and impact resistance requirements of heavy-duty operations.
Application Conditions
Environmental Conditions: Suitable for use in industrial environments with moderate temperature fluctuations and non-severe corrosive media. It should be avoided in strong acid, strong alkali, or highly corrosive salt spray environments unless additional anti-corrosion treatment is applied.
Mechanical Load Conditions: Designed for bearing static or moderate dynamic loads. It can effectively resist pressure, tension, and bending forces during long-term operation, but it is not suitable for extreme impact or alternating load environments beyond its design limits.
Processing and Fabrication Conditions: Preheating is required before processing thick plates to prevent cracking. Welding operations should follow standard procedures due to its good weldability, and post-welding stress relief treatment can be performed as needed to ensure structural stability.
Operating Temperature and Pressure: Adaptable to working conditions with certain high temperature and pressure. It maintains stable mechanical properties within the designed temperature and pressure range, but it is necessary to strictly comply with relevant standards to avoid exceeding the safe operating limits.
Why Choose Us :
You can get the perfect material according to your requirement at the least possible price.
We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
We guarantee to give a response within 24hours(usually in the same hour)
You can get stock alternatives, mill deliveries with minimizing manufacturing time.
We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.
Contact us at beam@gneesteelgroup.com for pricing, technical support, or customized solutions. We are always ready to support your project.
What are the key mechanical properties of P420M?
The key mechanical properties of P420M include high tensile strength, good yield strength and toughness. It also has outstanding fatigue resistance and impact resistance, ensuring stable performance in long-term and heavy-duty operations.
What heat treatment processes is P420M suitable for?
P420M is suitable for heat treatment processes like quenching and tempering. Quenching enhances its hardness and strength, while tempering improves toughness and reduces brittleness, optimizing its overall mechanical performance.
Is P420M suitable for making automotive components?
Yes, P420M is very suitable for making automotive components. Its excellent strength, wear resistance and impact resistance meet the requirements of key parts like gears, axles and chassis components, ensuring safe and reliable operation.
Can P420M be welded easily?
P420M can be welded with proper techniques and materials. It is recommended to use matching welding electrodes and preheat the material before welding to reduce internal stress and avoid cracks in the weld joint.
What processing methods are suitable for P420M?
P420M is compatible with various processing methods, including forging, rolling, machining (turning, milling, drilling) and heat treatment. Its good machinability allows for precise shaping into complex components for industrial use.
Can P420M be used in high-pressure equipment?
P420M can be used in some high-pressure equipment after strict testing and certification. Its high tensile strength and yield strength enable it to withstand certain pressure, but it must comply with relevant industry standards and safety regulations.
What is the yield strength of P420M?
The minimum yield strength of P420M is 420 MPa, which is the origin of its model name. This high yield strength ensures that the material can resist deformation under load, making it ideal for heavy-duty structural components.
Can P420M be used in cold weather conditions?
P420M has good low-temperature toughness, so it can be used in cold weather conditions (usually above -20°C). It maintains stable performance without brittle fracture, making it suitable for outdoor equipment in cold regions.
What is the hardness of P420M after heat treatment?
After proper quenching and tempering, the hardness of P420M can reach 220-260 HB. This hardness range balances strength and toughness, making it suitable for components that require both wear resistance and impact resistance.
Is P420M corrosion-resistant?
P420M has moderate corrosion resistance to general atmospheric and mild chemical environments. For harsh corrosive conditions like strong acids or alkalis, additional anti-corrosion treatments such as coating or galvanizing are recommended to extend its service life.