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Help CenterCarbon Steel Pipe With Mill Test Report 1 Year Warranty ERW Seamless 20 Inch 6m
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As a leading manufacturer from Hemaokang Steel (Shandong) Co., Ltd., established in 2025 with an annual export value exceeding US$50 million, we take pride in offering high-quality carbon steel pipes that meet global standards. Our Carbon Steel Pipe with Mill Test Report provides you with verified performance and reliability, backed by a 1-year warranty. Whether you need ERW or seamless types, our 20-inch, 6-meter pipes are engineered to deliver exceptional strength and durability for demanding applications.
Our pipes are manufactured under strict quality control, ensuring compliance with ISO 9001 certification. Each pipe is accompanied by a Mill Test Report (MTR) that confirms chemical composition, mechanical properties, and dimensional accuracy. This transparency allows you to make informed decisions with confidence. The 20-inch outer diameter (508 mm) and 6-meter length are standard, with customization options available upon request.
Key Features & Technical Specifications
- Material: High-quality carbon steel (e.g., ASTM A53 Gr.B, API 5L Gr.B) ensuring excellent tensile strength and weldability.
- Type Options: Available in ERW (Electric Resistance Welded) and Seamless manufacturing processes to suit different pressure and structural requirements.
- Dimensional Precision: Outer diameter of 20 inches (508 mm) with tight tolerances per industry standards. Length of 6 meters (20 ft) or custom lengths.
- Surface Treatment: Options include black (mill finish), galvanized, or varnished to prevent corrosion.
- End Preparation: Plain ends, beveled ends for welding, or threaded ends per your specification.
- Certification: ISO 9001 certified factory; each pipe comes with a Mill Test Report (MTR) for traceability.
- Warranty: 1-year warranty against manufacturing defects, demonstrating our commitment to quality.
| Parameter | Specification |
| Outer Diameter | 20 inch (508 mm) |
| Wall Thickness | SCH 20, SCH 40, SCH 80, or custom |
| Length | 6 meters (standard), up to 12 meters available |
| Material Grade | ASTM A53 Gr.B, API 5L Gr.B, or equivalent |
| Manufacturing Process | ERW (Electric Resistance Welded) / Seamless |
| Surface Treatment | Black, Galvanized, Varnish, or Anti-corrosion coating |
| End Type | Plain, Beveled, Threaded, or Coupling |
| Testing | Hydrostatic, Bend, Flattening, Dimensional Inspection |
| Certification | ISO 9001, Mill Test Report included |
Applications: These carbon steel pipes are widely used in oil and gas transmission, structural support, water supply systems, piling, and mechanical engineering. The combination of strength, weldability, and corrosion resistance makes them suitable for both onshore and offshore projects.
Why Choose Hemaokang Steel?
With a team of 51–100 skilled employees and an annual export value of US$50 million to US$100 million, we have established a strong presence in North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. Our factory in Liaocheng, Shandong, China, is equipped with advanced production lines and rigorous testing facilities. Each pipe is individually inspected and comes with a Mill Test Report to guarantee compliance with your specifications. Our 1-year warranty reflects our confidence in the product's durability.
We offer flexible terms: custom lengths, wall thicknesses, and coatings are available on request. Our dedicated sales team ensures timely delivery and competitive pricing. Whether you need a single order or bulk shipment, we are ready to support your project.
Contact us today to request a quote or discuss your specific requirements. Experience the reliability of Hemaokang Steel – your trusted partner in carbon steel pipe solutions.
Frequently Asked Questions
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What is the difference between ERW and seamless pipes?
ERW pipes are manufactured by rolling the steel and welding the seam, while seamless pipes are extruded from a solid billet, offering higher pressure resistance. Both are available in our product line. -
Do you provide a Mill Test Report with every pipe?
Yes, every order includes a Mill Test Report (MTR) that documents chemical composition, mechanical properties, and dimensional results. -
What is the warranty period?
We offer a 1-year warranty against manufacturing defects. The warranty covers material and workmanship issues. -
Can you customize the length or wall thickness?
Absolutely. We can produce pipes with custom lengths (e.g., 12m) and wall thicknesses per your requirements. Please specify when ordering. -
What surface treatments are available?
Standard options include black paint, galvanized, varnish, and anti-corrosion coatings. We can also apply special coatings like FBE or 3LPE upon request. -
Are your pipes suitable for high-pressure applications?
Yes, our seamless pipes are ideal for high-pressure services, while ERW pipes are suitable for lower-pressure applications. We recommend selecting the appropriate type based on your project specifications. -
What is your minimum order quantity (MOQ)?
For standard sizes, the MOQ is typically 1 ton. For non-standard sizes, please contact our sales team for details. -
How do you ensure product quality?
Our ISO 9001 certified factory conducts hydrostatic testing, bend testing, flattening testing, and dimensional inspection. Each pipe is traceable via the MTR number.
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