EN10025 S355JR Carbon Low Alloy Steel S355JR Structural Plate

Description: S355JR carbon steel plate is a low-alloy high-strength structural steel that complies with European standard EN10025. S355JR steel is a low-alloy high-strength structural steel in China, with a hardness of 70-80B. The grade S355JR decomposition S is struc...

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S355JR Carbon Low-alloy Structural Steel Description

S355JR carbon steel plate is a low-alloy high-strength structural steel that complies with European standard EN10025. S355JR steel is a low-alloy high-strength structural steel in China, with a hardness of 70-80B. The grade S355JR decomposition S is structural steel, 355 is the yield strength of the steel plate not less than 355MPa, JR represents the delivery quality of the steel plate, and JR does not do impact. S355JR is equivalent to domestic Q345B. The delivery state of S355JR hot-rolled structural steel is hot-rolled, and S355JR is made by converter or electric furnace and belongs to killed steel.

EN10025 S355JR carbon low alloy steel plate's yield strength is not less than 355MPa, tensile strength is 470-630MPa, elongation after fracture is not less than 22%, S355JR also has certain wear resistance, and S355JR cutting deformation is small, easy to weld, often used for cutting large Parts, or cut long strips, square plates for welding large structural parts, steel plates cut thick according to the drawing are also used for mining metallurgical machinery and equipment, engineering machinery, hydraulic machinery, bridge construction, high-rise buildings, etc.

S355JR carbon low-alloy structural steel is a small or trace amount of alloying elements added to ordinary carbon steel, so that the properties of S355JR steel are changed, and the steel with better performance than ordinary carbon steel is obtained, and it also has special properties such as high temperature resistance and low temperature resistance. S355JR steel plate is also suitable for bending, cold forming, and cold drawing, and it is indicated by adding a capital letter C at the end of the steel plate grade, such as S355JRC.

S355JR Carbon Low-alloy Structural Steel Datasheet

Thickness: 0.15mm-300mm
Width: 500-2250mm
Length: 1000mm-12000mm or according to customer's special request
Size Tolerance: ±1%-3%
Surface: Mild steel plain finish, hot dip galvanized, color coated, ect.
Processing method: Bending, Welding, Decoiling, Cutting, Punching, Polishing or as customer's request
Technology: Hot roll, cold roll, cold drawn, ect.

S355JR Carbon Low-alloy Structural Steel Chemical composition

Grade	Max C content for t in mm			Mn max	Si max	P max	S max	Cu max	N max
Grade	t ≤ 16	>16 t ≤	t >40	Mn max	Si max	P max	S max	Cu max	N max
S355JR	0.24	0.24	0.24	1.6	0.55	0.035	0.035	0.55	0.012

S355JR Carbon Low-alloy Structural Steel Mechanical Properties

Grade	Yield (MPa)min	Tensile (MPa)min	Charpy V - notch longitudinal
	Strength at t = 16mm		Temp ( °C)	Energy (J) t =16mm
S355JR	355	470/630	20	27

Tensile Strength, Mpa, ≥
Material (Steel Number)	t<3	3 ≤ t ≤ 100	100 < t ≤400
S355JR (1.0045)	510-680	470-630	450-600

Equivalent Grade of S355JR Carbon Low-alloy Structural Steel

European Union		USA		Germany		ISO		China		Indian
Standard	Grade (Material Number)	Standard	Grade	Standard	Grade	Standard	Grade	Standard	Grade	Standard	Grade
EN 10025-2	S355JR (1.0045)	ASTM A992/A992M; ASTM A572/A572M	A572 Grade 50 [345] A992	DIN 17100	St 52-3	ISO 630-2	S355B	GB/T 1591	Q345B	IS 2062	E350