At Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd, we pride ourselves on being a leading manufacturer and supplier of high-quality black carbon pipe. With over 39 years of industry experience, our state-of-the-art 35,000 m² facility houses advanced production lines that deliver 30,000 tons of ASTM/EN-compliant fittings, flanges, and pipes annually. Our commitment to excellence is backed by ISO 9001, CE, and PETROBRAS certifications, ensuring uncompromising quality for oil & gas, shipbuilding, and construction sectors.
We offer a comprehensive range of the product options to meet your specific project requirements:
Available in various diameters, wall thicknesses, and lengths to suit your needs.
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 |
Our products are manufactured using high-quality carbon steel, including:
These grades ensure optimal performance in different industrial settings, from moderate to high-pressure applications.
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
To enhance durability and appearance, we offer the following surface treatments:
Our versatile black carbon pipe finds use in numerous industries:
We understand the importance of safe transportation and timely delivery. Our packaging options include:
Our dedicated logistics network ensures efficient global deliveries, even for bulk wholesale orders.
At Hebei Jinsheng, quality is paramount. Our rigorous quality control process includes:
Every pipe undergoes thorough testing to meet international standards and your specific requirements.
Our commitment to quality is validated by numerous certifications:
Q: What is the standard length of your products?
A: Our standard lengths range from 6 to 12 meters, but we can accommodate custom lengths based on your project needs.
Q: Can you provide custom dimensions for the products?
A: Yes, we offer customization services to meet specific project requirements. Please contact our sales team for more information.
Q: What is the delivery time for bulk orders?
A: Delivery times vary based on order volume and specifications. Typically, we can deliver bulk orders within 4-6 weeks after order confirmation.
Q: Do you offer after-sales support?
A: Absolutely. We provide comprehensive after-sales support, including technical assistance and warranty services.
Ready to elevate your industrial piping systems with our high-quality black carbon pipes? Contact our expert team today for personalized solutions and competitive quotes.
Email: admin@chinajsgj.com
Phone: +8618003119682
Trust Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd for all your product needs. With our industry-leading manufacturing capabilities, stringent quality control, and commitment to customer satisfaction, we're your ideal partner for successful industrial projects.
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