steels chemical composition

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 N/mm2......UP TO 16mm 360; 16 to 30mm 350; 30 to 50mm 340

MIN TENSILE N/mm2.. 500 min 640 max

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

Thanks murphyc1.