seamless carbon steel tube

Seamless Carbon Steel Tubes: Premium Quality for Industrial Applications

At Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd, we pride ourselves on being a leading manufacturer and supplier of high-quality seamless carbon steel tubes. With 39 years of industry expertise, our state-of-the-art 35,000 m² facility houses advanced production lines capable of delivering 30,000 tons annually. Our ISO 9001, CE, and PETROBRAS certifications ensure uncompromising quality for oil & gas, shipbuilding, and construction sectors.

Key Features

Our products offer:

• Superior strength and durability
• Excellent corrosion resistance
• Consistent wall thickness
• High-temperature performance
• Pressure-bearing capabilities

These features make our tubes ideal for demanding industrial applications where reliability is crucial.

Product Types

We offer a wide range of seamless tube options:

• Standard pipes (1/8" to 24" NPS)
• Line pipes (API 5L Grade B to X70)
• Boiler tubes (SA179, SA192, SA210)
• Mechanical tubes (EN10305-1, EN10305-4)
• Structural tubes (EN10210, EN10216)

Custom dimensions and specifications are available upon request.

Materials & Grades

Our products are manufactured using premium-grade materials:

• ASTM A106 Grade B/C
• ASTM A53 Grade B
• API 5L Grade B to X70
• EN10216-2 P235GH, P265GH

We can also produce tubes in other grades to meet specific project requirements.

Dimensional Tolerance Checks(Per ASTM A530/API 5L)

 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

Surface Treatment

To enhance performance and longevity, we offer various surface treatments:

• Black coating
• Varnished
• Oiled
• Pickled and oiled
• Hot-dip galvanized
• Powder-coated

Our advanced 100-meter automated painting lines ensure uniform and durable finishes.

Applications

Our versatile seamless carbon steel tubes find use in numerous industries:

• Oil and gas pipelines
• Petrochemical processing
• Power generation plants
• Automotive manufacturing
• Construction and infrastructure
• Shipbuilding and marine applications
• Mechanical engineering

Packaging & Delivery

We ensure safe transportation of your order with:

• Bundle packaging with steel strips
• Wooden cases or pallets for added protection
• Custom packaging solutions available

Our dedicated logistics network guarantees timely global deliveries for bulk wholesale orders.

Quality Control

We maintain strict quality standards throughout production:

• Raw material inspection
• In-process checks at each manufacturing stage
• Non-destructive testing (NDT)
• Hydrostatic pressure testing
• Dimensional and visual inspections

Our ISO 9001 certification validates our commitment to quality excellence.

Certificates

Our products meet international standards and certifications:

• ISO 9001:2015
• CE Marking (EU)
• GOST-R (Russia)
• API 5L (American Petroleum Institute)
• ASTM compliance

These certifications ensure our tubes meet the highest industry standards.

FAQ

Q: What is the minimum order quantity for the products?
A: Our minimum order quantity is typically 10 tons, but we can accommodate smaller orders for specific requirements.

Q: Can you provide custom sizes or grades?
A: Yes, we offer customization services to meet your exact specifications. Please contact our sales team for details.

Q: What is the lead time for bulk orders?
A: Lead times vary depending on order size and specifications. Generally, we can fulfill most orders within 4-6 weeks.

Q: Do you offer sample testing before large orders?
A: Absolutely. We can provide sample tubes for testing and approval before proceeding with bulk production.

Q: How do you ensure consistent quality across large orders?
A: Our rigorous quality control process, including in-line inspections and batch testing, guarantees uniform quality throughout production runs.

Contact Us

Ready to elevate your projects with our premium seamless carbon steel tubes? Our expert team is here to assist you with product selection, technical support, and customized solutions.

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 reliable, high-performance industrial tubing solutions.