JIS G3103 is a Japanese Industrial Standard that specifies the technical delivery conditions for carbon steel plates for pressure vessels. SB480 is one of the grades defined under this standard.
Chemical Composition:
Carbon (C): Up to 0.20%
Silicon (Si): Up to 0.55%
Manganese (Mn): 0.60% to 1.40%
Phosphorus (P): Max 0.030%
Sulfur (S): Max 0.025%
Additional elements may include Ni, Cr, Mo, and others to improve specific properties.
Mechanical Properties:
Yield Strength: Minimum 340 MPa
Tensile Strength: 490 to 620 MPa
Elongation: Depending on thickness, typically around 22% or higher.
Applications:
SB480 is typically used in the manufacturing of pressure vessels, boilers, and other heavy machinery that requires high strength and good toughness.
Welding:
SB480 steel can be welded using common welding methods, though preheating may be necessary depending on the thickness and joint design.
While there might not be a direct equivalent for SB480, similar grades include:
ASTM A283 Grade C
EN 10028 P265GH (for pressure vessel applications)
JIS G3103 SB480 is known for its balance of strength and ductility, making it suitable for demanding applications in the pressure vessel sector. For detailed specifications and further technical data, consult resources like the Japan Society of Mechanical Engineers or steel suppliers specializing in Japanese standards.
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