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Galvanized Square Tube is manufactured with accurate dimensions, strict tolerances, smooth surface quality, and uniform zinc coating. It offers excellent dimensional accuracy, corrosion resistance, and reliable mechanical performance for applications requiring high precision. This product is commonly used in machinery components, automotive parts, furniture manufacturing, equipment structures, and precision engineering projects. Customized specifications, sizes, and coating requirements are available according to customer drawings and technical standards.
| Product Name | Gi Square Steel Pipe/Tube |
| Size Range | DIAMETER: 20x20MM-600x600MM ; THICKNESS: 1.0MM–20.0MM |
| Material | Q195 = S195 / A53 Grade AQ235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2Q355 = S355JR / A500 Grade B Grade C |
| Standard | ASTM A500, EN10219, EN10210, JIS G3466GB/T6728 |
| Pipe Surface | 1) Natural Black2) Oiled 3) Color Painted4) Galvanized (zinc coating 30-500g/m2) |
| Standard Sizes | 1/2 x 1/2 inch 3/4 x 3/4 inch 1 x 1 inch 1-1/2 x 1-1/2 inch 2 x 2 inch 2-1/2 x 2-1/2 inch 3 x 3 inch 4 x 4 inch 5 x 5 inch 6 x 6 inch 8 x 8 inch |
| Tolerances | ± 0.5 mm |
| Delivery Time | 30-45 DAYS AFTER RECEIVING DEPOSIT OR LC |
| Brand | Gnee Steel |
| Elements Material | Chemical Composition% | ||||
| C% | Mn% | S% | P% | Si% | |
| Q195 | 0.06-0.12 | 0.25-0.50 | <0.050 | <0.045 | <0.30 |
| Q215 | 0.09-0.15 | 0.25-0.55 | <0.05 | <0.045 | <0.30 |
| Q235 | 0.12-0.20 | 0.30-0.70 | <0.045 | <0.045 | <0.30 |
| Q345 | <0.20 | 1.0-1.6 | <0.040 | <0.040 | <0.55 |
| Elements Material | Mechanical Property | ||
| Yield Point (Mpa) | Tensile Strength(Mpa) | Elongation (%) | |
| Q195 | >195 | 315-430 | 32-33 |
| Q215 | >215 | 335-450 | 26-31 |
| Q235 | >235 | 375-500 | 24-26 |
| Q345 | >345 | 470-630 | 21-22 |
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20 production lines Fast delivery time Professional exporting service
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100% virgin material Strict quality control by inproduction 100% check and test
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Our professional technical team can effectively help solve problems during the work process
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