JIS G3103 standard includes steel grades: SB410, SB450, SB480, SB450M and SB480M. It specifies the hot rolled steel plates of carbon steel and molybdenum alloy steel to be used for boilers and pressure vessels, excepting those to be used at room and low temperatures.

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JIS G3103 specifies the hot rolled steel plates of carbon steel and molybdenum alloy steel to be used for boilers and pressure vessels, excepting those to be used at room and cold temperatures. This standard covers steel SB410, SB450, SB480, SB450M and SB480M.These plates are widely used in the fabrication of boilers and pressure vessels in industries such as petrochemical and manufacturing.
Steel plates of JIS G3103 are widely used in the fabrication of boilers and pressure vessels in industries such as petrochemical and manufacturing.
STEEL DIMENSION:
Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm

Chemical Composition and Mechanical Properties:

SB480M Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Mo
SB480M	0.20-0.23	0.15 -0.40	0.90	0.030	0.030	0.45-0.60

Grade	SB480M Mechanical Property
Grade	Thickness	Yield	Tensile	Elongation
SB480M	mm	Min Mpa	Mpa	Min %
	t≦25	275	480-620	17
	25<t≦50	275	480-620	21

JIS G3103 Equivalent Steel Grade:

JIS G3103 Steel Grade	Europe	Germany	Japan	USA
SB450	P296 GH	A St45, 17Mn4, StE315	SPV 315	A 515 gr.55
SB450M	P296 GH	A St45, 17Mn4, StE315	SPV 315	A 515 gr.55
SB480	P355 GH	A St52, 19Mn8, StE355	SPV 355	A537 CL1
SB480M	P355 GH	A St52, 19Mn8, StE355	SPV 355	A537 CL1
SB410	P235 GH	A St35, HI, StE255	SPV 235	A285 Gr.A/B/C

We also offer steel fabrication service where steel plates can go through processings like cutting (any size and any shape), drilling, welding, milling, machining as you require. If you are interested in buying JIS G3103 steel plate products, contact us now for the latest price or check the following table for equivalent steel grade of JIS G3103.

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Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

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Boiler Pressure Vessel Steel