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Precision Steel Tubes / ֧ڧ٧ڧߧߧ ѧݧߧ ҧ

DIN2391 Cold Drawn/Cold Rolled Precision Seamless Steel Tubes

SIZEOD4-300mm. WT1-30mm

DIN2393 Cold Drawn/Cold Rolled Precision Welded Steel Tubes

SIZEOD10-150mm. WT0.5-7.0mm

Steel Grade and Chemical Composition ( % )

Steel Grade Chemical Composition ( % )
C max Si max Mn P max S max
ST35 0.17 0.35 0.40 0.025 0.025
ST45 0.21 0.35 0.40 0.025 0.025
ST52 0.22 0.55 1.60 0.025 0.025

Mechanical Properties ( % )

Steel Grade Mechanical Properties ( Mpa )
BK BKW BKS GBK NBK
Rm Elongation Rm Elongation Rm ReH Elongation Rm Elongation Rm ReH Elongation
N/mm2 % N/mm2 % N/mm2 N/mm2 % N/mm2 % N/mm2 N/mm2 %
min Min min Min min min Min min Min min min Min
ST35 480 6 420 10 420 315 14 315 25 340-470 235 25
ST45 580 5 520 8 420 375 12 390 21 440-570 235 21
ST52 640 4 580     7 580 420 10 490 22 490-630 355 22

 

 

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