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