Steel Grade of Perforated Tubes

Perforated metal tubes are supplied in the form of round tube or square tubes. The punched holes can also be round, square, slot, decorative and etc. Popular material for perforated tubes are carbon steel.

More Technical Details:

Perforated rectangular and square steel tube:
Steel Grade:Q195 Q215 Q235B Q345
Size:15*15mm-400*400mm 15*30mm-300*500mm
W.T:0.8-18mm

Steel grade chemical composition
C Mn Si S P Cr
Q195 0.06~0.12 0.25~0.50 ≤0.30 ≤0.050 ≤0.045 ___
Q235 0.12~0.20 0.30~0.70 ≤0.30 ≤0.045 ≤0.045 ___
Q345 ≤0.20 1.00~1.60 ≤0.55 ≤0.40 ≤0.040 ___
Steel grade chemical composition
C Mn Si S P  
Q195 0.06~0.12 0.25~0.50 ≤0.30 ≤0.050 ≤0.045  
Q235 0.12~0.20 0.30~0.70 ≤0.30 ≤0.045 ≤0.045  
Q345 ≤0.20 1.00~1.60 ≤0.55 ≤0.40 ≤0.040  

Perforated Metal into Round Pipes

Punched Metal Processed Square Tubes


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