1.0570

S355J2

 

St 52 steel is one of steel grade in DIN 17135. St 52 grades is used for Structural components and general purposes.

 

Grade, Class, Type, Symbol or Name	Steel Number	UNS Number	Heat Treatment	Section Thickness		Yield Strength, min		Tensile Strength, min		Elongation, min, %	Other
				t, mm	t, in.	N/mm2 or MPa	ksi	N/mm2 or MPa	ksi
S355J2G3	1.0570	—	N	< 3	—	355	—	510-680	—	—	—
				3 ≤ t ≤ 16	—	355	—	490-630	—	20	27 J at -20°C
				16 < t ≤ 40	—	345	—			20
				40 < t ≤ 63	—	335	—			19
				63 < t ≤ 80	—	325	—			18
				80 < t ≤ 100	—	315	—			18
				100 < t ≤ 150	—	295	—	470-630	—	18
				150 < t ≤ 200	—	285	—	450-630	—	17	23 J at -20°C

 

Composition:

 

%C	%Si	%Mn	%P	%S	%Cr	%Mo	%Ni	% Others
0.10-0.22	0,550	0.10-1.60	0,025	0,015	0.3	0.08	0.30	Cr+Mo+Ni ≤ 0,0.48

Hot working:

Forging temperature range: 1200-850℃
 
Note: Heat to 1200 ℃. Do not forge below 850.
 
Heat treatment:

Soft annealing ℃	HB 30-soft annealed	Normalizing ℃	Hardening temperature for quenching in Water ℃	Hardening temperature for quenching in Oil ℃	Tempering temperature ℃
1100-850	650-700	223	850-880	820-850	830-860

 

Main application:

Structural components for general mech. Engineering
 
Shape of product:

Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs