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ST52-3 steel

Description of DIN ST52-3 steel
Unalloyed structural steel.

Applications of DIN ST52-3 steel

Common structural steel for welded assemblies, Re>355 N/mm2. Guaranted toughness at 0 oC. It can be used for statically and dynamically stressed constructions.

DIN ST52-3 steel Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.80

DIN ST52-3 steel Soft Annealing
Heat to 650-700oC, cool slowly.

DIN ST52-3 steel Hardening
Harden from a temperature of 860-890oC followed by oil or water quenching.

DIN ST52-3 steel  Tempering
Normalizing temperature: 860-890oC.

DIN ST52-3 steel  Forging
Hot forming temperature: 1050-850oC.

DIN ST52-3 steel Machinability
Machinability is good, rated at 90% that of the 1112 alloy used as a 100% machining rated steel.

ST52-3 DIN17100 Comparison of steel grades
EN10025:1990 FE 510 B
 EN 10025-2 S355JR
JIS SS490/SM490A
NFA 35-501 E36-2
BS1449 50B
UNI7070 FE 510 B

St52-3 steel plate Chemical analysis -% by mass*

Chemical elements C≤ 16mm max C>16mm max Si 
Mn max P
%,by mass 0.24 0.24 0.55 1.60 0.045 0.045

St52-3 steel plate Mechanical properties

thickness Yield StrengthReH
[N/mm2] transv.min.
Tensile StrengthRm
Fracture Elongation
[%]transv. min.
Notch Impact Energy1)Ch 
samplelongitud. min 
t≤ 16mm t >16mm 355 345     20 degree 27J
   t < 3mm    t ≥ 3mm   510-680 490-630  
Up to 1.5mm 1.51-2.00mm 2.01-2.50mm 2.51-2.99mm  ≥ 3mm     13 14 15 16 20