Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of Pre Galvanized Rectangular Steel Pipe 20x40-200x400mm ERW Welded Pipe for Construction in China. Welcome to consult the quotation and import cheap Pre Galvanized Rectangular Steel Pipe 20x40-200x400mm ERW Welded Pipe for Construction made in China here from our factory.
High-quality Pre Galvanized Rectangular Steel Pipe manufactured by ERW process, zinc coating 40-60g/m², available in sizes 15×15mm to 200×400mm.
Key Features
✅ Uniform Zinc Coating: 40-60g/m² pre-galvanized layer provides reliable corrosion resistance
✅ Wide Size Range: Square 15×15mm to 600×600mm; Rectangular 20×30mm to 600×800mm
✅ Flexible Thickness: 0.5mm to 30mm available to meet different structural requirements
✅ Multiple Length Options: 5.8M, 6M, 11.8M, 12M, or fully customized
✅ Surface Finishes: Pre-galvanized / Hot-dipped galvanized / Black painted / Oiled / 3PE / FBE
✅ Certified Quality: CE, BV, SGS, ISO 9001 certified
Product Details
| Parameter | Specification |
|---|---|
| Product Name | Pre Galvanized Rectangular Steel Pipe |
| Size (Square) | 15×15mm – 400×400mm |
| Size (Rectangular) | 20×30mm – 300×400mm |
| Wall Thickness | 0.5mm – 3.0mm (common: 0.6 / 0.7 / 0.8 / 1.0 / 1.2 / 1.5 / 2.0 / 2.5 / 3.0mm) |
| Length | 2M – 12M (standard: 5.8M / 6M / 11.8M / 12M or customized) |
| Material Grade | Q195, Q215, Q235, Q345, ASTM A53, ASTM A500 |
| Technique | ERW (Electric Resistance Welding) |
| Zinc Coating | Pre-galvanized: 40-60g/m²; Hot-dipped: 200-500g/m² |
| Surface Treatment | Pre-galvanized / Hot-dipped / Black painted / Oiled / 3PE / FBE |
| Standard | GB/T 6728, ASTM A500, EN 10219, JIS G3466 |
| Place of Origin | Tianjin, China |
Product Stock
Product Application
(1)It usually can be used in structural construction.
(2)It can be used in agriculture,fence,bridge and other field.
(3)The round pipe can be used as post props.
(4)Chemical industry,machinery,utilities
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Factory Strength
| Item | Details |
|---|---|
| Established | 2001 (20+ years experience) |
| Location | Tianjin, China |
| Factory Area | 80,000+ square meters |
| Annual Capacity | 200,000 – 700,000 tons |
| Production Lines | Advanced ERW welded pipe machines |
| Certifications | CE, BV, SGS, ISO 9001 |
| Export Markets | 70+ countries (Canada, Australia, Singapore, Korea, Mexico, Chile, Peru, etc.) |
| Cooperation | Direct factory + invested in multiple steel pipe manufacturers |
FAQ
Q1: Are you a factory or trading company?
We are a factory with our own production lines and have shares in other steel pipe manufacturers, ensuring stable supply and competitive prices.
Q2: What is your MOQ?
10 tons for common sizes, or mixed sizes for one 20GP container.
Q3: Can you provide samples?
Yes, samples are available if in stock. Sample cost is charged, freight on buyer's side.
Q4: What is the delivery time?
Normally 15-20 days after receiving deposit or L/C at sight.
Q5: What are your payment terms?
100% irrevocable L/C at sight; or T/T 30% advance, balance against copy of B/L within 3-5 days.
Q6: Do you have quality control?
Yes, we have gained BV, SGS, and ISO 9001 authentication. Third-party inspection is accepted.
Q7: Can you arrange shipment?
Yes, we have permanent freight forwarders who can get the best price from most shipping companies and offer professional service.
Q8: What's the difference between pre-galvanized and hot-dipped galvanized?
Pre-galvanized pipe is made from pre-galvanized steel strip (zinc coating 40-60g/m²). Hot-dipped galvanized pipe has thicker zinc coating (200-500g/m²) by dipping black steel pipe into zinc pool - better for outdoor use.
Contact us today for the best factory price!⬇️
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