euro-bearings

Analysis of Steel Used For Steel Profiles and Hubs of Combined Roller Bearings

DIN 1629 sheet 3-ST52 (STEEL PROFILES)

CARBON ................0.20% max

SILICON.................0.55% max

MANGANESE...... ....1.50% max

PHOSPHOROUS........0.050% max

SULPHUR...............0.050% max

ALUMINIUM............NIL

 

MIN YIELD)...... UP TO 16mm (flange thickness) 360 N/mm2; 16 to 30mm (flange thickness) 350 N/mm2; 30 to 50mm (flange thickness) 340 N/mm2

TENSILE STRENGTH..... 500 to 640 N/mm2

TEST PRESSURE.......50 BAR max

 

ST52 (BEARING HUBS)

CARBON..................0.18%

SILICON..................0.30%

MANGANESE...........1.50%

OTHER....................0.47%

MECHANICAL PROPERTIES

STEEL GRADE CONDITION   YIELD MPa

TENSILE MPa

ELONGATION % HARDNESS APPROX HB

IMPACT STRENGTH KV

COLD ROLLED ST52 NON- HEAT TREATED   740 760 10 250  
  NORMALISED   330 490 30 165 -60 C
HOT ROLLED ST52 NON-HEAT TREATED   330 490 21 180  

We are reliably informed that ST52 & ST52-3 equates to EN36