Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd is a leading manufacturer and supplier of ERW mild steel tubes. With 39 years of expertise, our company offers superior quality products that meet international standards. Our advanced 35,000 m² facility, featuring four production lines, delivers 30,000 tons of products annually, ensuring reliable supply for various industrial needs.
We offer a wide range of the products to cater to diverse industrial needs:
Our tubes are available in various sizes and wall thicknesses to suit your specific applications.
Our products are manufactured using high-quality mild steel, known for its excellent weldability and formability. We offer tubes in various grades, including:
To enhance durability and corrosion resistance, we offer various surface treatment options:
Our 100-meter automated painting lines and eco-friendly sandblasting systems ensure efficient and sustainable surface treatment processes.
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 ERW mild steel tubes find applications in numerous industries:
We understand the importance of safe and timely delivery. Our packaging options include:
Our dedicated logistics network ensures prompt global deliveries for bulk wholesale orders.
At Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd, we maintain rigorous quality control measures:
Our commitment to quality ensures that every product meets the highest industry standards.
Our products are backed by internationally recognized certifications:
These certifications validate our commitment to quality and compliance with global standards.
Q: What is the minimum order quantity for the products?
A: We typically handle bulk orders, but please contact us for specific quantity requirements.
Q: Can you provide custom sizes and specifications?
A: Yes, we offer customization services to meet your specific needs.
Q: What is the lead time for bulk orders?
A: Lead times vary depending on order size and specifications. Please contact us for accurate estimates.
Q: Do you offer technical support?
A: Yes, our team of experts is available to provide technical assistance and product recommendations.
Ready to experience the quality and reliability of our ERW mild steel tubes? Contact us today to discuss your requirements and receive a customized quote.
Email: admin@chinajsgj.com
Phone: +8618003119682
Trust Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd for all your product needs. With our extensive experience, advanced manufacturing capabilities, and commitment to quality, we're your ideal partner for industrial-grade steel tube solutions.
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