SPV490 is a high-quality pressure vessel steel plate specifically developed for manufacturing various pressure-bearing equipment. It is widely applied in the production of pressure vessels that carry gases, liquids or other media under certain pressure, thanks to its excellent comprehensive mechanical properties, superior weldability and high tensile and yield strength. This steel plate can stably bear specific operating pressures in harsh working environments, effectively prevent leakage, deformation or fracture of equipment, and thus ensure the safe, continuous and reliable operation of industrial production equipment.
JIS G3115 SPV490 steel chemical composition (%):
|
C |
Si |
Mn |
P |
S |
|
0.18 |
0.75 |
1.60 |
0.030 |
0.030 |
JIS G3115 SPV490 Steel Mechanical Property:
|
Grade |
Yield Point N/m㎡ |
Tensile strength N/m㎡ |
Elongation % min. |
|
SPV490 |
490min |
610 to 740 |
18 |
Applications of SPV490
Petrochemical Industry: Widely used in manufacturing high-pressure reactors, heat exchangers, separators, spherical tanks, and oil/gas storage tanks. It is suitable for harsh working environments involving thermal cycling and medium corrosion, ensuring equipment safety under high-temperature and high-pressure conditions <superscript>3superscript:5</superscript>.
Power Generation Sector: Applied to fabricate boiler steam drums, nuclear reactor pressure vessels, and hydropower station high-pressure pipelines. Its excellent toughness and stable mechanical properties meet the strict safety requirements of power equipment operation <superscript>3superscript:7</superscript>.
Boiler and Pressure Vessel Field: Core material for industrial boilers, liquefied petroleum gas cylinders, and heat exchangers. It can withstand extreme pressure fluctuations and low-temperature environments, avoiding brittle fracture risks <superscript>4superscript:8.
Other Fields: Used in shipbuilding, bridge construction, and heavy machinery manufacturing to produce structural components requiring high strength and weldability, enhancing structural stability and durability <superscript>4superscript:7.
Application Conditions
Standard Compliance: Must meet JIS G3115 standard (equivalent to Chinese standard GB/T 713-2023 Q490R) and can be customized according to SA 662/SA 662 M specifications <superscript>2superscript:4.
Mechanical Property Requirements: Yield strength ≥490MPa (for 6-50mm thickness), tensile strength 610-740MPa, elongation ≥18%. Impact energy ≥47J at -40℃ to ensure low-temperature toughness <superscript>5superscript:8.
Chemical Composition Control: Carbon ≤0.18%, silicon ≤0.75%, manganese ≤1.60%, phosphorus and sulfur ≤0.030% each to guarantee weldability and corrosion resistance <superscript>1superscript:3.
Processing and Inspection: Delivery status includes hot-rolled, normalized, or quenched-tempered. Ultrasonic testing (per ASTM A435/A578) and third-party inspection (ABS, DNV, SGS, etc.) are mandatory for key applications <superscript>2superscript:6.
Dimension Range: Thickness 6-300mm, width 1500-4200mm, length 3000-18000mm. Custom sizes available with minimum order quantity of 1 piece <superscript>3superscript:7.
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What are the main chemical components of SPV490?
The main chemical components of SPV490 include C, Si, Mn, P, S, etc. The content of each component is strictly controlled to ensure the steel plate's strength, toughness and weldability, meeting relevant industrial standards.
What is the application of SPV490 in the petroleum industry?
In the petroleum industry, SPV490 is used to manufacture oil pipelines, oil storage tanks, oil well casings and other equipment. It can bear the pressure of crude oil and natural gas and adapt to the harsh working environment of the oil field.
What standards does SPV490 comply with?
SPV490 mainly complies with the Japanese industrial standard JIS G 3115. This standard specifies the technical requirements, test methods and inspection rules of pressure vessel steel plates.
What is the tensile strength range of SPV490?
The tensile strength range of SPV490 is generally 610-770MPa. This range of tensile strength ensures that the steel plate can resist external tension and is not easy to break during use.
What is the difference between SPV490 and SPV410?
The main difference lies in strength. SPV490 has a higher minimum yield strength (490MPa) than SPV410 (410MPa). SPV490 is suitable for higher pressure occasions, while SPV410 is used for medium and low pressure equipment.
What is the minimum yield strength of SPV490?
The minimum yield strength of SPV490 is 490MPa, which is a key index reflecting its bearing capacity. This strength level enables it to be widely used in high-pressure equipment manufacturing fields.
Can SPV490 be cut by flame cutting?
Yes, SPV490 can be cut by flame cutting. It has good flame cutting performance, and the cut surface is smooth without obvious burrs or cracks. Proper cutting parameters should be controlled during operation.
What heat treatment processes does SPV490 usually undergo?
SPV490 usually undergoes normalizing heat treatment. Normalizing can refine the grain structure of the steel plate, improve its mechanical properties, make the structure uniform, and enhance its toughness and strength.
What is the thickness range of SPV490 steel plates?
The common thickness range of SPV490 steel plates is 6mm-100mm. Different thicknesses are selected according to the actual use requirements of pressure vessels to ensure the equipment's pressure-bearing capacity and safety.
What are the common application fields of SPV490?
SPV490 is commonly used in manufacturing boilers, chemical reactors, oil storage tanks, gas cylinders and other pressure vessels. It is also applied in petroleum, chemical, power and other industries with high safety requirements.