PRODUCTS
Navigation
Message
‹






›

◉ Product Details
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 |
more than just a product supplier; we are your trusted industry partner
We are committed to providing one-stop steel material solutions for domestic and international customers, meeting the needs of different industries for high-performance materials.
Personalise
We are manufacturer,We are able to satisfy customers’ individuation.
High Quality Products
The company specializes in the research, development, production, and sales of copper products. Its main products include Copper flat steel, tinned copper wire, copper rods, copper coils, copper sheets, and copper tubes.
Provide Excellent Service
we have established long-term and win-win partnership with many large steel manufacturers
Request a Free Estimate
Need to know how much your cost?
Factory Tour
Products Recommended
Get real-time quotes
Interested? Leave your contact details.







