Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of Hollow Section Rectangular Square Pipe Welded Steel Tube Black Pipe For Building Material in China. Welcome to consult the quotation and import cheap Hollow Section Rectangular Square Pipe Welded Steel Tube Black Pipe For Building Material made in China here from our factory.
Premium Welded Steel Tube | Hollow Section | Building Material
1. Versatile Shapes Available in both square and rectangular hollow sections to meet diverse structural needs.
2. Black Pipe Finish Uncoated black surface offers excellent weldability and easy on-site customization.
3. Wide Building Applications Ideal for construction frames, support columns, fencing, handrails, and structural frameworks.
4. Cost-Effective Solution Competitive factory-direct pricing with no compromise on quality-maximize your project budget.
Product Description
I.Product Basic Info:
| Name |
China Online Sell Hollow Section Rectangular Square Pipe Welded Steel Tube Black Pipe For Building material |
| 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 |
| 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.
FAQ
Q1. What sizes, steel grades, and standards do your Galvanized Pipes comply with?
A: TYT Steel manufactures Pipes in a wide range of outer diameters, wall thicknesses, and lengths to suit structural, plumbing, fencing, and scaffolding applications. Common standards include ASTM, BS, EN, JIS, and GB. Send your target spec and our sales team will provide a tailored quotation within 24 hours.
Q2. What is the MOQ and shipment policy ?
A: Our minimum order quantity is 5 metric tons. All shipments are based on full container quantities to ensure safe loading, optimal freight cost, and on-time delivery.
Q3. How long is the lead time for stock and customized orders?
A: Stock Pipes in 6m length (with our factory name printed in Chinese) ship within 7 days. Customized orders - including non-standard length, wall thickness, packaging, or special requirements - typically require 20–25 days depending on order quantity. Rush orders can be prioritized; share your schedule with our sales team for a confirmed delivery plan.
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