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DIN 2395-3 Rectangular And Square Electric Welded Precision Steel Tubes

DIN 2395-3 Rectangular And Square Electric Welded Precision Steel Tubes

RECTANGULAR AND SQUARE ELECTRIC WELDED PRECISION STEEL TUBES

Description


1.Chemical composition


code

 number for material

chemical composition(%)
C maxP maxS maxN maxSi maxMn maxAl min
USt37-20.210.065

0.065

0.009-
--
RSt37-20.190.0600.0600.010--
-
St37-20.190.0500.050---
St44-20.240.0600.0500.010---
St44-30.230.0500.050---
M220.16-0.230.0400.040-0.280.40 to 0.750.02 
QSTE340N0.180.0350.035-9.531.56 -














2.Mechanical property


code number for materialMechnical properties

NBK( norminalized)BKM (welded and sized)

Tensile strength Rm N/mm²Yield point ReH N/mm²minElongation at rupturre A5% minTensile strength Rm N/mm²

Yield point ReH N/mm² 

min

Elongation
USt37-2360 to 470235
233902507
RSt37-2
St37-3
St44-2430 to 540
275214602906
St44-3
M22420 min29025---
QSTE340 N4600 to 58034027---


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