SPV450 is a type of high-strength structural steel commonly used in industrial and engineering fields. It features excellent toughness, weldability and corrosion resistance, suitable for manufacturing heavy-duty machinery and construction components.
SPV450 vessel plate offered by GNEE belongs to boiler and pressure vessel special steel plate, which is implemented in Japan standard, SPV450 boiler steel plate we offer has high strength, high toughness and fatigue resistance, at the same time, SPV450 vessel steel plate we offer also has impact resistance, corrosion resistance, welding and easy machining properties. In addition, our SPV450 boiler steel can be customised in size, cut, welded and punched according to your end-use requirements for SPV450 boiler quality plate products.
Chemical Composition and Mechanical Properties
| SPV450 Chemical Composition | |||||
| Grade | The Element Max (%) | ||||
| C | Si | Mn | P | S | |
| SPV450 | 0.18 | 0.75 | 1.60 | 0.030 | 0.030 |
| Grade | SPV450 Mechanical Property | |||
| Thickness | Yield | Tensile | Elongation | |
| SPV450 | mm | Min Mpa | Mpa | Min % |
| 6-50 | 450 | 570-700 | 19% | |
| 50-100 | 430 | 570-700 | 26% | |
| 100-200 | 410 | 570-700 | 20% | |
Applications of SPV450
Liquefied Gas Storage and Transportation Equipment: Widely used in manufacturing low-temperature storage tanks and transport tankers for liquefied petroleum gas (LPG), propane, and butane, which operate at -45℃ to -50℃. It is suitable for gas stations' underground storage tanks and long-distance transport vehicles due to its excellent low-temperature toughness.
Petrochemical and Chemical Equipment: Applied in low-temperature storage and processing systems, including ethylene spherical tanks (-104℃), propylene storage tanks (-48℃), and liquid ammonia tanks. It also serves in low-temperature separation towers and related pressure-bearing components in chemical plants.
LNG Auxiliary Equipment: Used to fabricate BOG (Boil-Off Gas) buffer tanks and refrigerant intermediate storage tanks that work in -50℃ to -100℃ environments, matching the low-temperature operation requirements of LNG projects.
Boilers and Pressure Vessels: Utilized in manufacturing boilers, steam drums, heat exchangers, and reactors for power generation and industrial production, adapting to medium-temperature and high-pressure working conditions.
Application Conditions of SPV450
Environmental Temperature Requirements: Designed for low to medium temperature environments, suitable for -100℃ to 200℃. It is prohibited to use in high-temperature environments above 200℃ as it lacks high-temperature strength design.
Mechanical Property Matching: Must meet the minimum yield strength (≥450MPa for thickness ≤50mm) and tensile strength (570-700MPa). It requires passing Charpy V-notch impact tests (≥34J) at low temperatures to resist brittle fracture.
Process and Standard Compliance: Manufactured in accordance with JIS G3115 standard, adopting TMCP, normalizing, or quenching-tempering processes. 100% ultrasonic flaw detection (UT) is mandatory to ensure no internal defects.
Medium and Welding Requirements: Not suitable for strong corrosive medium environments (additional lining or stainless steel is required). Welding must follow low cold crack risk processes (such as submerged arc welding) due to its low carbon equivalent (Ceq≤0.42%).
Advantages of SPV450
Excellent Low-Temperature Toughness: Performs stably at -100℃ to -45℃, with high Charpy impact energy (≥34J) at low temperatures, effectively avoiding brittle fracture and suitable for low-temperature storage and transportation scenarios.
Outstanding Mechanical Properties: Boasts high yield strength (≥450MPa) and tensile strength (570-700MPa), ensuring good load-bearing capacity and structural stability for pressure vessels and equipment.
Good Weldability: Low carbon equivalent (Ceq≤0.42%) reduces cold crack risk during welding, supporting various welding processes and ensuring reliable weld quality.
Wide Adaptability: Compatible with low-temperature media like LPG, ethylene, and propylene, and adaptable to medium-temperature and high-pressure working conditions, meeting diverse industrial needs.
Reliable Quality and Durability: Produced in line with JIS G3115 standard with 100% UT flaw detection, ensuring no internal defects and long service life in harsh industrial environments.
Packing
1.Seaworthy Packaging: We use strong, durable materials such as wooden pallets or crates to ensure the steel plates are securely packed for long sea voyages, preventing damage from movement.
2.Waterproof Wrapping: P420M is covered with high-quality waterproof materials to protect it from moisture and corrosion during transport, especially in humid environments.
3.Edge and Surface Protection: We apply edge protectors and use padded coverings to safeguard the steel from scratches and dents, ensuring that the material's surface and edges remain intact.
4.Custom Labeling and Marking: All shipments are clearly labeled with handling instructions and customer-specific requirements, facilitating smooth customs clearance and proper storage upon arrival.
Get an valued quotation for SPV450, Contact GNEE Steel.
What is the density of SPV450?
The density of SPV450 is approximately 7.85 g/cm³, the same as ordinary carbon steel. This density value is crucial for weight calculation and structural design of mechanical and construction components.
What is the tensile strength range of SPV450?
The tensile strength range of SPV450 is 570-720 MPa. This wide range ensures that it can adapt to different processing requirements and working conditions, maintaining stable performance under tension.
Is SPV450 resistant to low-temperature environments?
SPV450 has certain low-temperature resistance. It can maintain good toughness at -20°C to -40°C, not easy to brittle fracture. However, for extremely low-temperature environments, additional low-temperature testing is required.
What standards does SPV450 comply with?
SPV450 complies with Japanese industrial standards (JIS G 3115). This standard specifies its chemical composition, mechanical properties, processing requirements and inspection methods to ensure product quality uniformity.
Can SPV450 be heat-treated to improve performance?
Yes, SPV450 can be subjected to heat treatments such as quenching and tempering to further improve its strength and hardness. Proper heat treatment can also reduce internal stress and improve dimensional stability.
What is the surface quality requirement of SPV450 steel plates?
The surface of SPV450 steel plates should be smooth, free of cracks, scars, bubbles and other defects. Minor surface defects can be repaired by grinding, but they must not exceed the specified thickness tolerance.
How to identify SPV450 materials?
SPV450 materials can be identified by chemical composition analysis, mechanical property testing and material marking inspection. Professional instruments such as spectrometers can quickly and accurately determine the material type.
What is the service life of SPV450 components?
The service life of SPV450 components depends on working environment and maintenance. Under normal working conditions and proper maintenance, it can be used for 10-20 years, even longer in mild environments.
Can SPV450 be used in marine engineering?
Yes, SPV450 is suitable for marine engineering. After anti-corrosion treatment, it can resist seawater corrosion and bear the harsh marine environment, used in ship hulls, offshore platforms and other structures.
What is the thickness range of SPV450 steel plates?
The common thickness range of SPV450 steel plates is 6-100 mm. Thicker plates are suitable for heavy-load components, while thinner plates are used for general structural parts that require high strength.