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Help CenterAPI 5L X42 ERW Carbon Steel Pipe 12 Inch OD 0.375 Inch Wall Thickness for Oil and Gas
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Hemaokang Steel (Shandong) Co., Ltd., established in 2025 with an annual export value of US$50-100 million, is proud to introduce our API 5L X42 ERW Carbon Steel Pipe with a 12-inch outer diameter and 0.375-inch wall thickness. This product is specifically designed for the demanding oil and gas industry, offering reliable performance under high-pressure conditions. As a manufacturer with ISO9001 certification, we ensure every pipe meets strict quality standards, providing you with a durable and cost-effective solution for your pipeline projects.
Our ERW (Electric Resistance Welded) carbon steel pipe is manufactured using advanced production techniques, resulting in excellent weld integrity and dimensional accuracy. The API 5L X42 grade ensures a minimum yield strength of 42,000 psi, making it suitable for both onshore and offshore oil and gas transmission. With a 12-inch OD and 0.375-inch wall, this pipe offers a balanced combination of flow capacity and pressure resistance, ideal for medium to high-pressure systems.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Standard | API 5L (46th Edition) |
| Grade | X42 |
| Outer Diameter | 12 inch (304.8 mm) |
| Wall Thickness | 0.375 inch (9.525 mm) |
| Manufacturing Process | ERW (Electric Resistance Welding) |
| Material | Carbon Steel (e.g., ASTM A106, A53 compatible) |
| Length | 6m – 12m (customizable) |
| End Finish | Plain End, Beveled End, Threaded & Coupled (optional) |
| Surface Coating | Black painted, FBE, 3LPE, 3LPP, Galvanized (upon request) |
| Testing | Hydrostatic, NDT, Dimensional, Tensile, Bend |
Product Features & Advantages
- High Weld Strength: ERW process ensures a uniform weld seam with excellent mechanical properties, reducing the risk of failure under pressure.
- Dimensional Accuracy: Strict control over OD and wall thickness tolerances (within API 5L requirements) guarantees easy installation and compatibility with fittings.
- Cost-Effective: Compared to seamless pipes, ERW pipes offer significant cost savings without compromising performance for the specified pressure ratings.
- Versatile Applications: Suitable for oil and gas gathering lines, transmission pipelines, water injection, and structural purposes in energy sectors.
- Customizable Lengths: Available in standard double random lengths (20-40 ft) or custom lengths to minimize field welding on site.
- Quality Assurance: Every pipe undergoes hydrostatic testing, ultrasonic inspection, and visual inspection. Our ISO9001 certified management system ensures traceability and consistency.
- Corrosion Protection Options: Choose from FBE (Fusion Bonded Epoxy), 3LPE (Three-Layer Polyethylene), or 3LPP (Polypropylene) coatings to extend service life in harsh environments.
Our API 5L X42 ERW pipe meets the chemical and mechanical requirements of the API 5L specification. The X42 grade provides a perfect balance between strength and weldability, making it a popular choice for moderate-pressure oil and gas applications. With a 12-inch OD and 0.375-inch wall, this pipe is ideal for medium-diameter transmission lines where both flow rate and pressure containment are critical.
At Hemaokang Steel, we understand that every project has unique needs. We offer flexible packaging options (bundles, crates, or containers) and support various shipping terms (FOB, CIF, CFR, etc.). Our team of 51-100 experienced professionals is dedicated to providing timely delivery and technical support. With a strong presence in markets across North America, South America, Europe, Africa, Asia, and Oceania, we have the logistics capability to serve you efficiently.
Since our establishment in 2025, we have rapidly grown to achieve an annual export value exceeding US$50 million, trusted by clients worldwide. Our commitment to quality is reflected in our ISO9001 certification and rigorous testing protocols. We invite you to experience the reliability and service excellence that Hemaokang Steel offers. Contact us today for a competitive quotation or to discuss your specific requirements – we are ready to supply API 5L X42 ERW pipe in large quantities with consistent quality.
Frequently Asked Questions (FAQ)
Q1: What is the difference between API 5L X42 and X52 grades?
A: API 5L X42 has a minimum yield strength of 42,000 psi while X52 has 52,000 psi. X42 is more ductile and easier to weld, suitable for moderate pressure applications. X52 is used for higher pressure systems. Our X42 pipe is ideal for standard oil and gas lines.
Q2: Can this pipe be used for sour service (H2S environment)?
A: API 5L X42 ERW pipes can be supplied with additional requirements for sour service (e.g., hardness control, SSC testing) upon request. Please specify your environmental conditions, and we can provide a tailored solution.
Q3: What is the maximum allowable working pressure (MAWP) for this pipe?
A: The MAWP depends on the pipe's wall thickness, OD, material grade, and design factor. Using a standard formula (e.g., Barlow's formula), for a 12-inch OD, 0.375-inch wall, X42 grade, the pressure rating is approximately 1,500 psi (assuming a design factor of 0.72). Please consult our engineering team for exact calculations per your code.
Q4: Do you provide third-party inspection?
A: Yes, we can arrange inspection by third-party agencies such as SGS, BV, or DNV GL at the buyer's cost. Our ISO9001 system also ensures independent quality checks during production.
Q5: What are the typical delivery lead times?
A: For standard sizes and quantities, lead time is usually 15-30 days after receipt of deposit. For custom lengths or special coatings, it may extend to 30-45 days. We work to meet your project schedule.
Q6: How do you ensure the pipe is free from defects?
A: We perform hydrostatic testing (100% of pipes), ultrasonic testing on the weld seam, and visual inspection. Dimensional checks are done per API 5L. Test certificates are issued with each shipment.
Q7: Can you supply pipes with beveled ends for welding?
A: Yes, beveled ends (30° bevel, 1.6 mm root face) are available as standard. We also offer plain ends or threaded ends upon request.
Q8: What is the minimum order quantity (MOQ)?
A: Our MOQ for this size is typically 20 tons. However, for trial orders or special projects, we can accommodate smaller quantities. Contact us for details.
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