GB/T 9711SY/T 5037API 5LASTM A53/A106GB/T 3091
大口径螺旋钢管
Large diameter spiral welded pipe for piling, bridge and structural use, as well as low-pressure fluid transmission. Custom wall thickness a…
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- 👤 Wang Hao · 销售经理
- 📞 +86 15690475888
- 💬 WhatsApp: +8615690475888
- ✉️ 15690475888@163.com
快速参数
- 起订量可议，欢迎试单
- 交货期定金后15–30天
- 供货能力20,000吨/月
- 装运港天津/青岛
- 付款方式T/T、即期信用证
产品介绍
Large diameter spiral welded pipe for piling, bridge and structural use, as well as low-pressure fluid transmission. Custom wall thickness and length available, with plain or beveled ends for welding.
规格参数
| Diameter | up to DN3800 |
|---|---|
| Wall Thickness | up to 25 mm |
| End | plain / beveled |
| Standard | SY/T 5037, GB/T 3091 |
特点与优势
Double-sided submerged arc welding for a uniform, reliable weld seam
Large diameter and thick wall capability for main pipeline lines
High dimensional accuracy with stable roundness and straightness
Hydrostatic testing and ultrasonic inspection on every batch
Length up to 12 m or customised, bevelled ends ready for welding
Cost-efficient choice for large-volume transmission projects
应用领域
Oil & gas transmissionWater supply pipelinesPiling & foundationStructural useDredgingDistrict heating
包装与交付
钢带打捆、管端加护帽，可集装箱或散货装运；防腐管、保温管按设计包装。随货提供全套出口单证：商业发票、装箱单、提单、质保书。
常见问题
What standards do you produce to?
Spiral pipes can follow GB/T 9711, SY/T 5037, API 5L and ASTM standards. Third party inspection such as SGS or BV is welcome before shipment.
What is the largest diameter you can make?
Common range covers DN219 to DN3000 with various wall thicknesses. Tell us your specification and we confirm the production plan within 24 hours.
How do you control weld quality?
Each pipe passes hydrostatic test, and weld seams are checked by ultrasonic or X-ray inspection according to the standard you require.
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请告知口径、壁厚、标准和数量，销售工程师24小时内回复。
