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Japanese standard SB450 steel plate for turbine volute steel plate

SB450 steel belongs to the Japanese standard boiler vessel plate. The executive standard is JIS G3103, the manufacturer is BBN Steel. The production thickness is 8mm-300mm. It is mainly used in the manufacture of spherical storage tanks, second and third category pressure vessels, cryogenic vessels, etc.
 
SB450 steel characteristics: It belongs to medium carbon quenched and tempered steel, with higher strength, toughness and hardenability than 45# steel. It has good mechanical properties after modulation and good cutting performance, but its welding performance is relatively poor.
 
SB450 technical data
SB450 steel chemical composition:
C: 0.38~0.45, SI: 0.17~0.37, Mn: 0.5~0.8, S: ≤ 0.035 P: ≤ 0.035 NI: ≤ 0.03, Cu: ≤ 0.03
SB450 steel mechanical properties:
Tensile strength: ≥620
Yield strength: ≥375
Elongation: ≥15
Reduction of area: ≥40
Impact power: ≥19
Toughness value: ≥49
 
The application of SB450 steel plate: mainly used for high-pressure water pipes of hydropower stations, turbine volutes, heat exchangers, spherical tanks, separators, etc.
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