HDG Square Tubes Featuring Q235, ASTM A36, S235JR & SS400 Grades – Ideal for Construction Steel Frameworks.
Product Introduction
Hot-dip galvanized square tube: This structural component starts with steel plates or strips being bent and welded into square pipe form. The resultant square tubes are next treated with hot-dip galvanization — an effective anti-corrosion process where the steel is dipped into molten zinc. Metallurgical reactions between the iron substrate and zinc melt form a tough zinc-iron alloy layer on the tubes’ inner and outer sides, greatly improving their corrosion resistance against harsh environments and extending their usable life.
Standards And Grades
| Standard | Normal Grade |
| ASTM A500/A36 | Grade A/B/C |
| EN10219/EN10210 | S235JR/S275JR/S355JR |
| JIS G3466 | SS400/S20C/S45C |
| GB/T 6728 | Q195/Q215/Q235/Q345 |
Normal sizes
(1)Hot-dip galvanized square Tubes
Advantage
Applications
Hot-dip galvanized square pipe: Owing to its superior corrosion resistance, mechanical strength, and longevity, this material has become essential in multiple engineering sectors. Typical applications include: glass curtain wall systems; power transmission towers; telecommunication infrastructure; water/gas distribution pipelines; electrical conduit systems; building frameworks; bridge structural components; industrial steel structures; and power grid installations. Its proven durability and cost-effectiveness have established it as a preferred solution across industrial and civil construction projects.
Packaging and Shipping
The standard export packaging is compatible with various transportation modes including containerized shipping, bulk cargo vessels, air cargo services, overland trucking, and multimodal logistics solutions.
Q&A
Q1: What's the difference between square tubes and rectangular tubes?
A: Square tubes have all four sides of equal length. In contrast, rectangular tubes have two pairs of sides with different lengths. Rectangular tubes are better suited for applications where a specific load - bearing direction is needed.
Q2: Can you provide custom sizes?
A: Absolutely. We offer both customized sizes and surface treatments to precisely meet your particular requirements.
Q3: Are samples available?
A: Yes, samples are available. However, the customer will be responsible for the shipping costs.
Q4: What quality control measures do you have?
A: We ensure top - notch quality in multiple ways. Every batch comes with Mill Test Certifications. We also conduct third - party inspections. Our products hold certifications like ISO, CE, SGS, and TUV. Alibaba verifies our compliance as well.
Q5: What makes your company special?
A: Our products are crafted from premium materials and undergo rigorous quality checks, ensuring durability and reducing long-term costs for customers. Each product is tested multiple times to guarantee stability and reliability. Additionally, we offer customized solutions to meet unique customer needs.
Q: Which countries do you export to?
A: Our products are made from high - quality materials and go through strict quality checks. This guarantees their durability and reduces long - term costs for customers. Each product undergoes multiple tests to ensure stability and reliability. Moreover, we provide customized solutions to address unique customer needs.