Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of Galvanized Square Tube / Square Hollow Section / Hot Dip Galvanized Tube in China. Welcome to consult the quotation and import cheap Galvanized Square Tube / Square Hollow Section / Hot Dip Galvanized Tube made in China here from our factory.
Key Features & Advantages of GI Pipe
✅ Superior Corrosion Resistance - Zinc coating provides 20+ years of service life in outdoor environments
✅ High Strength-to-Weight Ratio - Lightweight yet structurally strong
✅ Uniform Zinc Layer - Hot-dip process ensures complete coverage, inside and out
✅ Easy Fabrication - Excellent weldability, cuttability, and formability
✅ Dimensional Accuracy - Tight tolerances for precision applications
✅ Cost-Effective - Low maintenance, long replacement cycle
✅ Eco-Friendly - 100% recyclable steel material
✅ Multiple Sizes Available - Customizable dimensions to meet project needs
I.Product Basic Info:
| Name | Galvanized square tube square hollow section hot dip galvanized tube |
| Surface | Galvanized (200-220g/m2 usual,can be request by customer) |
| Material |
Q195,Q215,Q235,Q345 |
| MOQ | 5 tons for normal size and material |
| WT | As customer's requests |
| Payment terms | TT deposit + the balanced against BL copy / LC or 100% LC at sight |
| Trade terms | FOB,C&F,CIF,EXW |
| Length | fixed or random,as customer request. |
| End Treatment | Plain(can be threaded,punch,shrink,extension... ) |
| Lead time |
within 7 days from stock with 6m length (stock pipe with our factory name in Chinese),20-25 days for customized pipe according to the qty |
2.Product Chemical Composition & Mechanical Properties :
| Grade | Chemical Composition | Mechanical Properties | ||||||
| C | Mn | Si | S | P | Yield | Tensile | Elongati | |
| Strength Mpa | Strenth Mpa | -on % | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | ≤0.30 | ≤0.045 | ≤0.05 | ≥195 | 315-430 | ≥33 |
| Q235 | 0.12-0.20 | 0.30-0.67 | ≤0.30 | ≤0.045 | ≤0.04 | ≥235 | 375-500 | ≥26 |
| Q345 | ≤0.20 | 1.00-1.60 | ≤0.55 | ≤0.04 | ≤0.04 | ≥345 | 470-630 | ≥22 |
3.Product standard test:
| Q195≈ | Grade B,SS330 SPHC,S185 |
| Q235 ≈ | Grade D,SS400,S235 |
| Q345 ≈ | Grade 50/345,SPFC590,E/S335 |
Tianjin TianYingTai(TYT) Steel Pipe Co., Ltd is located in Jinghai, Tianjin, which is professionally engaged in steel production sales, steel processing, greenhouse engineering with accessories and export business. It has been experienced for 15 years so far. We have 13 production lines for various kinds of steel pipe, 10 processing production lines and 2 environmental production hot-dipped galvanizing lines. We not only can produce 450,000 tons of various sizes of ERW steel pipe, but also can produce deep processing pipe with 100,000 tons. Our annual production capacity of hot dipped galvanized steel pipe is 200,000 tons, capacity of greenhouse engineering material is 250,000 tons and highway column and guardrail is 200,000 tons.
Tianjin TianYingTai Imports & Exports Trade Co., LTD is our export company. We have achieved trading capacity 60,000 tons in 2016. Our products are widely used in agriculture, animal husbandry , chemical industry, machinery, construction, utilities, vehicle and other fields. Our customers are from Asia, the Middle East, the Southeast Asia, European Union and other countries.
Quality Inspection:
1.Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate (the second private enterprise to obtain this certificate)
2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the production quality .
3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.
Why Choose Us TYT?
🌟 20+ Years Manufacturing Experience
| Direct Factory Price
| OEM/ODM Service
| Global Export to 60+ Countries
| Samples Available
| 24/7 Customer Support
We are a professional manufacturer and exporter of galvanized steel tubes, committed to providing high-quality products, competitive prices, and reliable after-sales service. Whether you need standard sizes or customized specifications, we can meet your project requirements efficiently.
📩 Contact us today for quotations, samples, and technical data sheets!⬇️
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