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Steel hollow section can be mainly divided into round hollow section, rectangular hollow section and square hollow section.
Rectangular and square carbon steel tube are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc.
Surface of steel tube generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.
1. Product description
Product Name | Galvanized Steel Square Tubes and Hollow Section |
Thickness | 0.5-15mm |
Dimension | 15*15-400*400mm |
Zinc Coating | 40-500g |
Length | 1-12m |
Material | Q195/Q235/Q345/S235JR |
End | Square cut, plain ends without burrs |
Surface Treatment | Galvanized/Oil painted |
| MOQ | 25 tons |
2. Q195/Q235/Q345
| Elements | Chemical Composition% | Mechanical Property | ||||||
| Material | C% | Mn% | S% | P% | Si% | Yield Strength | Tensile Strength | Elongation |
| (Mpa) | (Mpa) | (%) | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | <0.05 | <0.045 | <0.3 | >195 | 315-430 | 32-33 |
| Q235 | 0.12-0.2 | 0.30-0.70 | <0.045 | <0.045 | <0.3 | >235 | 375-500 | 24-26 |
| Q345 | <0.20 | 1.0-1.6 | <0.04 | <0.04 | <0.55 | >345 | 470-630 | 21-22 |
3. Pictures of steel hollow section
4. More products
Our main products:
Welded Steel Pipes
Galvanized Steel Pipes
Hollow Sections
Scaffolding products
Steel hollow section can be mainly divided into round hollow section, rectangular hollow section and square hollow section.
Rectangular and square carbon steel tube are widely used in various fields such as construction or building, low pressure liquid delivery, engineering, fencing,greenhouse etc.
Surface of steel tube generally are black or galvanized, galvanized Steel tube has good features of corrosion resistance, anti-rust, acid resistance, which largely extend its service life.
1. Product description
Product Name | Galvanized Steel Square Tubes and Hollow Section |
Thickness | 0.5-15mm |
Dimension | 15*15-400*400mm |
Zinc Coating | 40-500g |
Length | 1-12m |
Material | Q195/Q235/Q345/S235JR |
End | Square cut, plain ends without burrs |
Surface Treatment | Galvanized/Oil painted |
| MOQ | 25 tons |
2. Q195/Q235/Q345
| Elements | Chemical Composition% | Mechanical Property | ||||||
| Material | C% | Mn% | S% | P% | Si% | Yield Strength | Tensile Strength | Elongation |
| (Mpa) | (Mpa) | (%) | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | <0.05 | <0.045 | <0.3 | >195 | 315-430 | 32-33 |
| Q235 | 0.12-0.2 | 0.30-0.70 | <0.045 | <0.045 | <0.3 | >235 | 375-500 | 24-26 |
| Q345 | <0.20 | 1.0-1.6 | <0.04 | <0.04 | <0.55 | >345 | 470-630 | 21-22 |
3. Pictures of steel hollow section
4. More products
Our main products:
Welded Steel Pipes
Galvanized Steel Pipes
Hollow Sections
Scaffolding products
