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Help CenterCarbon Steel Pipe With Mill Test Report, ASTM A53 ERW 2" SCH40 Black, 1 Year Warranty, Anti-rust Oil Coated
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At Hemaokang Steel (Shandong) Co., Ltd., we are dedicated to supplying reliable carbon steel piping solutions to the global market. This ASTM A53 ERW 2-inch SCH40 black pipe combines solid strength, precise dimension control, and superior weld quality. Each length is protected with an anti-rust oil coating and backed by a full 1-year warranty, while a Mill Test Report is included for every batch. With our specialized export team and strong manufacturing partnerships, we deliver quality assurance from Shandong to project sites worldwide. This ERW (Electric Resistance Welded) carbon steel pipe is manufactured under the ASTM A53 specification, one of the most widely recognized standards for steel pipe used in pressure and mechanical applications. The 2-inch nominal size with SCH40 wall thickness ensures a balanced combination of flow capacity and pressure handling. The black finish is achieved through a controlled varnishing or painting process, giving the pipe a clean, uniform surface that is easy to inspect and coat in the field.
Key Features and Benefits
- Standard compliance: Produced in accordance with ASTM A53 Grade B requirements, ensuring dependable chemical and mechanical properties.
- ERW manufacturing: Our pipes are made through a high-frequency electric resistance welding process, providing consistent weld integrity and dimensional accuracy.
- Ideal dimensions: 2-inch outside diameter (60.3 mm) with SCH40 wall thickness (3.91 mm) suits a wide range of piping systems.
- Surface protection: Each pipe is coated with black paint or lacquer and applied with anti-rust oil inside and outside, minimizing corrosion during storage and transit.
- Complete traceability: A mill test report is supplied with each order, confirming chemical composition and mechanical test results.
- One-year warranty: Our confidence in the material quality allows us to offer a 12-month warranty against manufacturing defects.
- Customizable lengths: Standard 6 m and 12 m lengths are available, with cut-to-length options upon request.
Technical Specifications
| Parameter | Value |
|---|---|
| Standard | ASTM A53 |
| Type | ERW (Electric Resistance Welded) |
| Grade | A / B |
| Nominal Diameter | 2 inch (60.3 mm OD) |
| Wall Thickness | SCH40 (3.91 mm) |
| Length | 6 m / 12 m / customized |
| Surface | Black varnished / painted with anti-rust oil |
| Ends | Plain, beveled, or threaded |
| Test Certificate | Mill Test Report included |
| Warranty | 1 year |
Why Choose This ASTM A53 ERW Pipe?
The ASTM A53 specification covers seamless, welded, and zinc-coated pipes, and our ERW product is manufactured with the same strict control on chemical composition, tensile strength, yield strength, and dimensions. Because the pipe is made by forming a coil into a cylinder and welding it with high-frequency current, the weld seam is narrow and consistent, allowing smooth internal and external surfaces. This makes the pipe suitable for service in mild corrosive environments when properly coated, and it is easy to weld, cut, and thread for on-site installation.
Mill Test Report
Every order of your selected pipe is accompanied by a Mill Test Report (MTR), which is a quality document that shows the actual values of the chemical and mechanical tests performed on the heat lot from which the pipe was produced. The report lists elements such as carbon, manganese, phosphorus, and sulfur, along with yield strength, tensile strength, and elongation. This information gives engineers and buyers the confidence to use the pipe in projects that require documented material traceability.
Anti-rust Oil Coating
The anti-rust oil coating is applied after production and before packaging. A thin, even film of mineral oil is sprayed or wiped onto the inner and outer surfaces. This film protects the steel from atmospheric moisture and salt air during ocean shipment, reducing the risk of red rust and surface pitting. The oil layer is temporary and can be removed by cleaning or degreasing before installation, or it can be left as a protective film for short-term indoor storage.
Applications
- Water transportation and low-pressure fluid lines in building services.
- Structural pipes for scaffolding, handrails, supports, and frames.
- Mechanical fabrication, shafting, rollers, and general engineering.
- Fencing, gate posts, and agricultural construction.
- Oil and gas gathering lines, where the standard is accepted.
Warranty and After-Sales Service
We provide a one-year warranty on this carbon steel pipe, covering failures caused by defects in raw material, manufacturing, or workmanship under normal conditions. If a genuine quality issue occurs, our team will evaluate the claim and offer a replacement or a reasonable solution, depending on the situation. We also provide technical guidance for installation and maintenance upon request, ensuring a smooth long-term experience.
Frequently Asked Questions
-
Q1: What is a mill test report and is it provided?
A: Yes, a mill test report (MTR) is included for each delivery. It documents the chemical composition, mechanical properties, and production details of the pipe, confirming its compliance with ASTM A53. -
Q2: What does anti-rust oil coating mean for the pipe surface?
A: A thin layer of protective oil is applied to the inner and outer surfaces to prevent rust during storage and sea transport. The pipe can be easily cleaned with standard degreasers or solvents before installation. -
Q3: Can you supply other sizes or wall thicknesses?
A: Yes, we offer a wide range of ERW pipes in different diameters, schedules, and lengths. Please contact us with your detailed requirements for a tailored quotation. -
Q4: How is the pipe packed for export?
A: Pipes are packed in bundles with steel strapping. Ends are protected with plastic caps where applicable, and each bundle is carefully handled to avoid damage. Customers can request waterproof wrapping or container loading. -
Q5: What is the one-year warranty coverage?
A: The warranty covers manufacturing defects such as weld seam flaws, dimensional deviations, or surface defects found under normal use and proper handling. It does not cover misuse, corrosion caused by aggressive environmental conditions, or improper installation. -
Q6: What are the available pipe ends?
A: Plain ends (PE), beveled ends (BE), and threaded and coupled (T&C) ends are available. Beveling is usually performed for welding applications, while plain ends suit mechanical connectors. -
Q7: Do you provide third-party inspection services?
A: Yes, third-party inspection such as SGS, BV, or TUV can be arranged whenever requested. The inspection cost and additional lead time will be clearly communicated before order confirmation. -
Q8: What is the lead time for a standard container?
A: For regular sizes of ASTM A53 ERW black pipe, the production lead time is typically 2 to 4 weeks after order confirmation, depending on the quantity and surface treatment requirements.
Contact Us for More Information
Hemaokang Steel (Shandong) Co., Ltd. is located in Liaocheng, a leading steel pipe production base in China. Our annual export value is between US$50 million and US$100 million, and we ship to clients across North and South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We operate under an ISO9001 quality management system and maintain a dedicated crew of 51-100 professionals. All orders are dispatched from Qingdao Port with careful documentation and timely logistics. Please send your inquiry, and our export team will respond with competitive pricing, technical support, and customized supply solutions.
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