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.
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 | |
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