Key attributes about Welded Pipe
Industry-specific attributes
| Section Shape | Round |
| Surface Treatment | Hot Rolled |
| Tolerance | ±1% |
| Oiled or Non-oiled | Non-oiled |
| Invoicing | by theoretical weight |
Other attributes
| Place of Origin | Shandong, China |
| Alloy Or Not | Non-Alloy |
| Standard | ASTM |
| Grade | ASTM A106, A53 SS330, SPHC, S185 Q195 Q235 |
| Delivery Time | 8-14 days |
| Brand Name | Kehuan |
| Application | Fluid Pipe, Drill Pipe, Boiler Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe |
| Special Pipe | API Pipe, Other, EMT Pipe, Thick Wall Pipe |
| Thickness | 6-60mm |
| Length | 12M, 6M,6.4M,customized |
| Certificate | API , CE, BSI, SASO, JIS, ISO9001 |
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
| Standard | ASTM JIS DIN GB AISI |
| Application | Fluid Pipe, Hydraulic Pipe, OIL PIPE |
| Product name | Welded Pipe |
| Place of Origin | Shandong China |
| MOQ | 1 Tons |
| Wall Thickness | 6mm-70mm |
| Sample | Avaliable |
| Technology | Hot Rolled |
| Material | 10#.20# 45# 16Mn |
| Payment | TT DP LC |
Our Service
At Kehuan, we implement change management strategies specifically tailored to the steel industry, seamlessly integrated into our operations. Our approach not only enhances immediate client benefits but also lays the groundwork for enduring advantages within your existing steel product portfolio.
Customized Product
Quality Assurance
Quality Assurance
Certified Inspections
Company Profile
Established in 2011, located in Liaocheng City, Shandong Province
It is one of the largest manufacturers of carbon steel and alloy seamless steel pipes in Shandong Province, China.
Kehuan has four advanced hot rolling production lines Eight expansion production lines and China’s most advanced heat treatment production line.
Interacting with customers
What is Welded Pipe?
Welded Pipe is a type of steel pipe formed by joining steel plates or strips through a welding process. Unlike seamless pipes, welded pipes feature a visible weld seam, which is created using techniques such as electric resistance welding (ERW), submerged arc welding (SAW), or induction welding. This manufacturing method allows for greater flexibility in producing pipes of various diameters, wall thicknesses, and lengths, making them widely used in applications ranging from construction and water supply systems to mechanical structures and industrial pipelines.
Manufacturing Process of Welded Pipe
- Plate/Strip Preparation:High-quality steel plates or strips are selected and cut to the desired width. The edges are often pre-processed (e.g., deburring or beveling) to ensure proper alignment and welding quality.
- Forming:The steel plate/strip is shaped into a cylindrical form through rolling or bending. For circular pipes, this involves feeding the material through a series of rolls that gradually curve it into a tubular shape. The edges are aligned to form a longitudinal seam.
- Welding:The aligned edges are welded together using one of several methods:Electric Resistance Welding (ERW)—— Heat is generated via electrical resistance at the seam, which is then pressed together to form a solid bond.Submerged Arc Welding (SAW):——A continuous wire electrode and granular flux are used to create a molten weld pool, resulting in a strong, durable seam.Induction Welding—— High-frequency induction heating melts the edges of the steel strip, which are then welded under pressure.
- Sizing and Straightening:After welding, the pipe is passed through sizing rolls to ensure accurate dimensional compliance (e.g., outer diameter and wall thickness). It is then straightened to eliminate any curvature or deformations introduced during the manufacturing process.
- Post-Weld Treatment (Optional):Depending on the application, the pipe may undergo additional processes:Heat Treatment—— To improve mechanical properties (e.g., hardness, ductility) or relieve internal stresses.Surface Finishing:——Painting, galvanizing, or coating to enhance corrosion resistance.Non-Destructive Testing (NDT):——Methods like ultrasonic or radiographic testing to inspect weld integrity.
Advantages of Welded Pipe
- Cost-Effective Production:Welded pipes are generally more economical to produce than seamless pipes, as they use flat steel stock and simpler forming processes, reducing material waste and manufacturing time.
- Design Flexibility:Easily adapted to produce large-diameter pipes or non-standard sizes.Can be manufactured as circular, square, rectangular, or other special profiles.
- Wide Application Range:Used for structural supports, scaffolding, and building frameworks.Water, gas, and sewage pipelines.Components in automotive, agricultural, and manufacturing equipment.Low-to-medium pressure pipelines in oil, gas, and power industries.
- Reliable Weld Integrity:Modern welding technologies ensure strong, leak-resistant seams. Properly executed welds can match the mechanical properties of the base metal, making welded pipes suitable for many high-integrity applications when engineered and tested appropriately.
Our Service
At Kehuan, we implement change management strategies specifically tailored to the steel industry, seamlessly integrated into our operations. Our approach not only enhances immediate client benefits but also lays the groundwork for enduring advantages within your existing steel product portfolio.Convenient Online
Transparent Pricing
Hassle-Free Maintenance
Certified Industry Specialists
Authentic Materials and Components
Convenient Online Ordering
Why Us
- Unmatched Steel Expertise
- Dedicated to Your Specifications
- Premium Quality Materials
- Simplified Ordering Process
- On-Time Delivery, No Compromises
Our Service
At Kehuan, we implement change management strategies specifically tailored to the steel industry, seamlessly integrated into our operations. Our approach not only enhances immediate client benefits but also lays the groundwork for enduring advantages within your existing steel product portfolio.
Customized Product
Tailored solutions for product development to meet specific client needs.
Technical Consulting
Expert guidance on product selection, design optimization, and implementation.
Quality Assurance
Rigorous testing procedures to ensure reliability and performance.
Maintenance Guide
Comprehensive maintenance guides to ensure optimal product performance.
Certified Inspections
Certified evaluations to ensure compliance with industry standards.
24/7 Customer Support
Prompt assistance for inquiries, concerns, and technical issues.
Company Profile
At Kehuan, we excel in providing customized change management strategies specifically crafted for the steel industry. Our seamless integration approach ensures optimization of immediate client benefits while establishing long-lasting advantages within your existing steel portfolio.
Material Selection
Careful selection of high-quality raw materials.
Precision Cutting
Utilization of advanced cutting technologies for precise dimensions.
Forming and Shaping
Shaping raw materials into seamless steel pipes.
Heat Treatment
Application of heat treatment processes for enhanced durability.
Surface Finishing
Finishing processes for improved aesthetics and corrosion resistance.
Quality Assurance
Rigorous inspections to ensure reliability and adherence to standards.
Why Us
Selecting a steel service provider is a crucial decision, impacting the safety and performance of your projects. At Kehuan, we offer unmatched expertise in the steel industry. With years of experience, we possess in-depth knowledge of steel products, ensuring that your projects receive the highest level of care.
Industry Expertise
Reliable solutions backed by extensive industry experience.
Customized Solutions
Tailored options to meet your specific project requirements.
High-Quality Products
Guaranteed superior performance and durability in every product.
Advanced Technology
Precision and efficiency achieved through cutting-edge methods.
Exceptional Service
Prompt assistance and reliable support for all your needs.
Timely Delivery
On-time delivery, ensuring your projects stay on schedule.
