S355J2 Steel|S355J2/S355J2+N/S355J2G3

S355J2 steel is a carbon manganese ,high yield non alloy steel. It is called S355 because of the average minimum yield for this material is 355 Mpa.As a structural steel,it has excellent strength and weldability.It can be readily welded to other weldable steel. For its low carbon equivalent, it possesses good cold-forming properties. S355J2 is generally supplied in a normalized condition.

S355J2 Steel Supply Form & Size &Tolerance

Form of Supply	Size(mm)	Length(mm)
Round bar	Φ140-Φ1000	3000-10000
Square bar	100 x 100-600×600	3000-6000
Flat bar/Blcoks	Thickness :120-800	2000-6000
	Width:120-1500

Surface Finish	Black for Forged condition	Rough Turned
Tolerance	(0，+5mm)	(0，+3mm)

Remark:All the size supplied in Forged condition

S355J2 Steel Chemical Composition & Related Specifications

Grade	C	Si	Mn	P	S
S355J2G3	≤ 0.22	≤0.55	≤1.6	≤ 0.035	≤ 0.035

Germany	UK	China	Japan
ST52-3/1.0570	En14A/150M19	16Mn	SM 490

Popular S355J2 Steel Specifications

Grade	symbol
S355	JR	Charpy impact tests at room temperature 20°C
	J0	Charpy impact tests at 0°C
	J2	Charpy impact tests at -20°C
S355J2	N	Supply condition normalised
	G3	Supply condition normalised

S355J2 SteelMechanical Property

Thickness ,mm	5-100					100-150
Tensile strength,Mpa	470-630					450-650
Thickness ,mm	≤ 16	16-40	40-63	63-80	80-100	100-150	150-200	200-350	> 250
Yield strength,Mpa	≥ 355	≥ 345	≥ 335	≥ 325	≥ 315	≥ 295	≥ 285	≥ 275	≥ 265
Thickness ,mm	5-40		40-63		63-100		100-150
Elongation,%	≥20		≥19		≥18		≥18
Impact,J	J2: 27J at – 20°C

S355J2 Steel Normalizing 

Normalizing is used to refine the structure of forgings that might have cooled non-uniformly after forged,and considered as a conditioning treatment before final heat treatment.Normalizing temperature for S355J2 steel should be carried out between 890℃-950℃. hold suitable time for the steel to be thoroughly heated to complete the ferrite to austenite transformation.Cool in still air.

S355J2 Steel Application

S355J2 is a low carbon structural steel grade often used for application which require better mechanical properties than that of S275 and S235 grade.It is widely used in engineering and construction industries.

Applications include axles, bolts and connecting rods, motor, hydraulic and pump shafts, machinery parts,transmission towers, dump trucks, cranes, trailers, bull dozers, excavators, forestry machines, railway wagons, dolphins, penstocks, pipes, highway bridges, building structures, oil and gas platforms, offshore structures, shipbuilding, power plant, palm oil equipments and machineries, fans, pumps, lifting equipments and port equipments etc.

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