No. 20 Thick Wall Coiled Steel Pipe 45# - Large Diameter Straight Seam Welded Pipe with Double-Sided Submerged Arc Welding
Zhengde welded steel pipes are manufactured through precision rolling and welding processes, available in straight seam and spiral weld configurations. These pipes are engineered for demanding applications including pile driving, structural support, and industrial fluid transport.
| DN | Welded Steel Pipe (Standard) | Welded Steel Pipe (Heavy Wall) | Seamless Steel Pipe (Hot Rolled) | Spiral Welded Steel Pipe |
|---|---|---|---|---|
| pg≤1.0Mpa | pg≤1.6Mpa | pg≤2.5Mpa | pg≤1.6Mpa | |
| DN15 | 21.3×2.75 (1.25 kg/m) | 21.3×3.25 (1.44 kg/m) | ---- | ---- |
| DN20 | 26.8×2.75 (1.63 kg/m) | 26.8×3.5 (2.01 kg/m) | ---- | ---- |
| DN25 | 33.5×3.25 (2.42 kg/m) | 33.5×4 (2.91 kg/m) | 32×3.5 (2.46 kg/m) | ---- |
| DN32 | 42.3×3.25 (3.13 kg/m) | 42.3×4 (3.77 kg/m) | 38×3.5 (2.98 kg/m) | ---- |
| DN40 | 48×3.5 (3.84 kg/m) | 48×4.25 (4.58 kg/m) | 45×3.5 (3.58 kg/m) | ---- |
| DN50 | 60×3.5 (4.88 kg/m) | 60×4.5 (6.16 kg/m) | 57×3.5 (4.62 kg/m) | ---- |
| DN65 | 75.5×3.75 (6.64 kg/m) | 75.5×4.5 (7.88 kg/m) | 73×4 (6.81 kg/m) | ---- |
| DN80 | 88.5×4 (8.34 kg/m) | 88.5×4.75 (9.81 kg/m) | 89×4 (8.38 kg/m) | ---- |
| DN100 | 114×4 (10.85 kg/m) | 114×5 (13.44 kg/m) | 108×4 (10.26 kg/m) | ---- |
| DN125 | 140×4.5 (15.04 kg/m) | 140×4.5 (18.24 kg/m) | 133×4 (12.72 kg/m) | ---- |
| DN150 | 165×4.5 (17.81 kg/m) | 165×5.5 (21.63 kg/m) | 159×4.5 (17.14 kg/m) | 168×5 (20.1 kg/m) |
| DN200 | ---- | ---- | 219×6 (31.52 kg/m) | 219×5 (31.52 kg/m) |
| DN250 | ---- | ---- | 273×8 (52.28 kg/m) | 273×7 (45.92 kg/m) |
| DN300 | ---- | ---- | 325×8 (62.54 kg/m) | 325×7 (54.9 kg/m) |
| DN350 | ---- | ---- | 377×9 (81.67 kg/m) | 377×7 (63.87 kg/m) |
| DN400 | ---- | ---- | 426×9 (92.55 kg/m) | 426×7 (72.33 kg/m) |
| DN450 | ---- | ---- | 480×9 (104.53 kg/m) | 478×7 (81.31 kg/m) |
| DN500 | ---- | ---- | 530×9 (115.62 kg/m) | 529×7 (90.11 kg/m) |
| DN600 | ---- | ---- | 630×9 (137.82 kg/m) | 630×7 (107.5 kg/m) |
Straight seam welded pipes offer simplified production processes with high efficiency and cost-effectiveness. Available in longitudinal submerged arc welding (LSAW) and electric resistance welding (ERW) configurations.
Square and rectangular tubes are manufactured from rolled steel strip through precision forming and welding processes. Standard delivery lengths range from 4000mm to 12000mm, with 6000mm and 12000mm being most common.
Spiral welded pipes provide superior strength characteristics and are ideal for large-diameter applications in oil and gas transmission, pipe piling, and bridge construction.
Thick wall coiled pipes are manufactured through hot-rolling processes, available in diameters from 400mm to 3000mm with wall thicknesses ranging from 4mm to 300mm.
- Strict adherence to production standards and quality control protocols
- Competitive pricing based on real-time market analysis
- Secure transaction processing with financial protection
- Comprehensive after-sales support and technical assistance
- Long-term partnership opportunities with consistent quality and service
Shandong Zhengde Metal Manufacturing Co., Ltd. operates multiple production bases with over 100 production lines, 4 certified laboratories, and comprehensive quality assurance systems. Products are exported to more than 50 countries worldwide.
All products are carefully packaged to ensure safe transportation and delivery to global destinations.
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in metal product manufacturing, with production bases across multiple locations and extensive international distribution networks.
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