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Help CenterASTM A106 Gr.B Sch40 Seamless Carbon Steel Pipe 6m Length for Oil & Gas Pipeline
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Hemaokang Steel (Shandong) Co., Ltd. is a trusted supplier of high-quality carbon steel pipes, with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals. Our ASTM A106 Gr.B Sch40 Seamless Carbon Steel Pipe (6m length) is engineered specifically for demanding oil and gas pipeline applications. Manufactured under strict ISO9001 quality management systems, this pipe delivers exceptional strength, corrosion resistance, and dimensional accuracy—ensuring reliable performance in high-pressure and high-temperature environments.
Seamless construction eliminates weld seams, reducing the risk of leakage and failure. Sch40 wall thickness provides optimal balance between pressure capacity and weight. The 6-meter standard length simplifies transportation and installation, while customizable end finishes (plain or beveled) accommodate various welding and connection methods. Whether for upstream gathering lines, midstream transmission, or downstream refinery piping, our pipe meets the rigorous demands of the oil and gas industry.
Key Features & Benefits
- Superior Strength & Durability: ASTM A106 Grade B specification guarantees minimum yield strength of 240 MPa and tensile strength of 415 MPa, suitable for elevated temperatures up to 430°C.
- Seamless Integrity: No longitudinal or spiral weld seams—eliminates weak points and ensures uniform wall thickness.
- Sch40 Wall Thickness: Standard schedule provides excellent pressure containment for most oil & gas applications.
- Precise Dimensions: Manufactured to tight tolerances (OD ±0.5%, WT ±12.5%), ensuring compatibility with fittings and flanges.
- Versatile Surface Options: Available in black (as-rolled), bare, varnished, or with anti-corrosion coating upon request.
- Easy Handling: 6-meter length reduces joints and speeds up installation; ends can be beveled for efficient welding.
Technical Specifications
| Parameter | Value |
|---|---|
| Standard | ASTM A106 / ASME SA106 |
| Grade | Gr.B |
| Schedule | Sch40 |
| Type | Seamless |
| Length | 6m (customizable up to 12m) |
| Outer Diameter | From 1/2" to 24" (customizable) |
| Wall Thickness | As per Sch40 (e.g., 3.91mm for 2" pipe) |
| End Finish | Plain End, Beveled End, Threaded (optional) |
| Surface Coating | Black, Bare, Varnished, or Anti-corrosion (optional) |
| Packaging | Bundled, wrapped, or in containers per customer requirements |
Detailed Product Description
Our ASTM A106 Gr.B seamless pipes are produced from high-quality carbon steel billets through hot rolling or cold drawing processes. The seamless manufacturing ensures a homogeneous structure with excellent mechanical properties. The Sch40 wall thickness is a widely accepted standard in the oil and gas industry, offering a good balance between pressure rating and material cost. Each pipe undergoes rigorous testing, including hydrostatic testing, ultrasonic inspection, and dimensional checks, to comply with ASTM A106 requirements.
Key advantages for oil and gas pipeline applications include:
- High Pressure Resistance: The seamless design and Sch40 thickness allow the pipe to withstand internal pressures up to several thousand psi, depending on diameter.
- Temperature Stability: Grade B material maintains strength at elevated temperatures, making it suitable for hot oil, steam, and gas transport.
- Corrosion Resistance: Carbon steel provides adequate resistance in non-corrosive environments; optional coatings (FBE, 3LPE) are available for enhanced protection.
- Weldability: Beveled ends facilitate easy field welding, reducing installation time and labor costs.
- Traceability: Each pipe is marked with heat number, grade, and schedule for full traceability and quality assurance.
Our pipes are widely used in oil and gas gathering lines, transmission pipelines, refinery piping, and related infrastructure. We supply to markets across North America, South America, Europe, Africa, Oceania, and Asia, serving both large EPC contractors and local distributors.
Trust & Quality Assurance
Hemaokang Steel (Shandong) Co., Ltd. is committed to delivering consistent quality. Our ISO9001-certified production processes ensure that every pipe meets or exceeds industry standards. With an annual export value of US$50 million – US$100 million and a workforce of 51–100 experienced employees, we have the capacity to handle large-volume orders with reliable lead times. Our location in Liaocheng, Shandong—a major steel hub—gives us access to premium raw materials and efficient logistics.
We offer flexible customization options: lengths beyond 6m, special coatings, threading, and end finishes are available upon request. Our dedicated sales team provides prompt technical support and after-sales service. Choose Hemaokang Steel for your next oil and gas pipeline project—experience the difference of a partner who prioritizes quality, reliability, and customer satisfaction.
Frequently Asked Questions (FAQ)
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Q: What is the difference between ASTM A106 Gr.B and API 5L Gr.B pipes?
A: ASTM A106 is specifically designed for high-temperature service, while API 5L is for line pipe in oil and gas transmission. Both are carbon steel, but A106 has stricter chemical composition and mechanical properties for elevated temperatures. Our pipe is ASTM A106 Gr.B, suitable for both high-temperature and general pipeline applications. -
Q: Can I get other lengths besides 6m?
A: Yes, we offer lengths from 1m to 12m, or custom lengths as required. Please specify your needs when ordering. -
Q: Do you provide third-party inspection?
A: Yes, we can arrange third-party inspection (e.g., SGS, BV, Lloyds) at additional cost. Our ISO9001 system also supports internal inspection reports. -
Q: What surface treatments are available for corrosion protection?
A: We offer black (mill scale), bare, varnished, and anti-corrosion coatings such as FBE (Fusion Bonded Epoxy) or 3LPE (3-Layer Polyethylene). Please contact our sales team for detailed options. -
Q: What is the typical lead time for a 20-foot container of these pipes?
A: For standard sizes and quantities, lead time is 15–25 days after order confirmation, depending on production schedule. Urgent orders may be expedited. -
Q: Are these pipes suitable for sour gas service (H2S)?
A: ASTM A106 Gr.B is not specifically designed for sour service. For H2S environments, we recommend NACE MR0175/ISO 15156 compliant materials. Please consult our technical team for alternative grades. -
Q: How do you ensure dimensional accuracy?
A: Each pipe is inspected using ultrasonic wall thickness gauges, calipers, and length measurement tools. We also perform hydrostatic testing to verify integrity. -
Q: What is your minimum order quantity (MOQ)?
A: MOQ is typically 1 ton (approximately 6–7 pipes of 6m length for common diameters). For first-time customers, we may accept smaller trial orders.
Contact Hemaokang Steel today for competitive pricing and technical assistance. Let us supply the pipes that power your projects.
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