Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd is a leading manufacturer and supplier of Spiral Submerged Arc steel Pipe. With 39 years of expertise, our state-of-the-art facility produces high-quality pipes that meet international standards. Our product advantages include advanced automated production, mass manufacturing capabilities, and rigorous quality control.
Our product range includes:
Available in diameters from 219mm to 3500mm and wall thicknesses from 6mm to 25mm.
We offer pipes in various steel grades to suit your project requirements:
Choose from multiple surface treatment options:
Our Spiral Submerged Arc steel Pipe is ideal for:
We maintain strict quality control measures:
1 Dimensional Tolerance Checks(Per ASTM A530/API 5L)
Parameter |
Tolerance |
Instrument Used |
Outer Diameter(OD) |
±1%of nominal OD (or±0.79mm) |
Pi tape/Laser micrometer |
Wall Thickness(WT) |
±12.5%(SCH40 and below) |
Ultrasonic thickness gauge(UTG) |
Length |
±3mm for random,±6mm for cut-length |
Calibrated tape measure |
Straightness |
≤0.2%of total length |
Optical comparator |
Bevel Angle (for welding) |
30°-35°(±5°) |
Bevel protractor |
Visual &Surface Inspection
·Defect Identification:
o Lamination- Check for delamination near pipe ends
o Scratches/Dents -Max 5%of WT depth allowed (per ASME B31.3)
o Rust &Mill Scale-Controlled by SSPC-SP6(Commercial Blast Cleaning)
● Method:
o White light inspection(10,000 lux minimum)
o Dye penetrant test(PT)for surface cracks
Our products meet international standards and are certified by:
Q: What is the minimum order quantity for the products?
A: Our minimum order quantity is typically 20 tons, but we can accommodate smaller orders for special requirements.
Q: Can you provide custom specifications for your pipes?
A: Yes, we offer customization in diameter, wall thickness, length, and coating options to meet your specific project needs.
Q: What is the lead time for bulk orders?
A: Lead times vary depending on order size and specifications. Generally, we can deliver within 30-45 days for standard orders.
Q: Do you offer technical support for installation and maintenance?
A: Absolutely. Our team of experts provides comprehensive technical support, including welding guidance and corrosion prevention advice.
Q: How do you ensure consistent quality across large orders?
A: We employ advanced automated production lines and rigorous quality control processes at every stage of manufacturing to maintain consistent high quality.
Ready to elevate your infrastructure projects with our premium Spiral Submerged Arc steel Pipe? Our team is here to assist you with specifications, quotes, and technical information.
Email: admin@chinajsgj.com
Phone: +8618003119682
Trust Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd for your critical infrastructure needs. With our 39 years of experience, cutting-edge manufacturing processes, and commitment to quality, we deliver product that stands the test of time. Contact us today to discuss your project requirements and experience the Jinsheng difference in reliability, performance, and customer satisfaction.
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