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API 5L Gr.B Seamless Carbon Steel Pipe 16 Inch Schedule 80 for High Pressure
Product Spotlights
API 5L Gr.B seamless carbon steel pipe, 16-inch Schedule 80, designed for high-pressure applications. Manufactured with strict quality control, ISO9001 certified. Suitable for oil & gas, industrial piping. Available with custom lengths, coatings, and end finishes. Backed by Hemaokang Steel's reliable supply chain and annual export of US$50–100M.
Negotiable
MOQ: 1 Ton (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Carbon Steel (API 5L Gr.B)
Surface Treatment:
Other, Black painted, Varnished, or as required
size:
16 Inch (DN400)
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Port
Delivery Detail:
7 days
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Material
Other, Carbon Steel (API 5L Gr.B)
Surface Treatment
Other, Black painted, Varnished, or as required
size
16 Inch (DN400)
wall thickness
Schedule 80 (31.75 mm approx.)
pressure rating
High Pressure (up to 20 MPa approx.)
standard
API 5L Gr.B
certification
ISO9001
application
Oil & Gas, High Pressure Pipelines, Structural
end type
Plain End, Beveled End, Threaded (optional)
Hemaokang Steel (Shandong) Co., Ltd. is a reliable supplier of high-quality steel pipes, backed by an annual export value of US$50 million to US$100 million. Our API 5L Gr.B Seamless Carbon Steel Pipe 16 Inch Schedule 80 is engineered for demanding high-pressure environments, ensuring durability and safety in critical applications. Manufactured with precision and strict quality control, this pipe offers excellent performance in oil and gas transmission, industrial piping, and structural use.
Product Features & Technical Specifications
- Material: API 5L Gr.B carbon steel, known for high strength and weldability.
- Size: 16-inch nominal diameter (DN400) with Schedule 80 wall thickness (approximately 31.75 mm).
- Manufacturing Process: Hot-rolled seamless process ensures uniform wall thickness and no weld defects.
- Pressure Rating: Designed for high-pressure applications up to 20 MPa (depending on temperature and service conditions).
- Surface Finish: Available with black painting, varnish, or anti-corrosion coating as per customer request.
- End Finish: Plain end, beveled end for welding, or threaded ends (optional).
- Testing: 100% hydrostatic testing, ultrasonic testing, and dimensional inspection available.
| Parameter | Value |
|---|---|
| Standard | API 5L Gr.B |
| Outer Diameter | 16 inches (406.4 mm) |
| Wall Thickness | Schedule 80 (31.75 mm) |
| Length | 6 m, 12 m, or custom lengths |
| Yield Strength (min) | 245 MPa (35,500 psi) |
| Tensile Strength (min) | 415 MPa (60,200 psi) |
| Chemical Composition | C ≤0.30%, Mn ≤1.20%, P ≤0.030%, S ≤0.030% |
Advantages & Customer Benefits
- High Reliability: Seamless construction eliminates weak points, reducing the risk of leaks under high pressure.
- Corrosion Resistance: Carbon steel with optional coating provides long service life in harsh environments.
- Versatile Application: Suitable for pipelines, pressure vessels, structural supports, and more.
- Cost-Effective: Competitive pricing without compromising quality, thanks to our efficient supply chain.
- Customizable: Lengths, end finishes, and coatings can be tailored to meet specific project requirements.
Trust & Credibility
Hemaokang Steel (Shandong) Co., Ltd. is a newly established company (2025) but with a strong export performance of US$50–100 million annually. Our team of 51–100 experienced professionals ensures strict quality control, and we hold ISO9001 certification for our management system. We serve markets across North America, South America, Europe, Asia, Africa, and Oceania, delivering products that meet international standards. With our location in Liaocheng, Shandong, we benefit from a mature steel industry cluster, enabling fast production and reliable logistics.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum operating pressure for this pipe?
A: The maximum operating pressure depends on temperature and installation conditions. Typically, for Schedule 80, 16-inch pipe, it can handle up to 20 MPa (approx. 2900 psi) at ambient temperature. Please consult our technical team for specific calculations. -
Q: Is this pipe suitable for sour service (H2S)?
A: API 5L Gr.B is not specifically rated for sour service unless additional SSC (sulfide stress cracking) testing is performed. We can offer pipes with enhanced properties upon request. -
Q: What certifications are provided?
A: Our products are supplied with ISO9001 certification and mill test certificates (MTC) showing chemical and mechanical properties. Third-party inspection is available upon request. -
Q: Can you provide custom lengths?
A: Yes, we can cut pipes to custom lengths from 1 m to 12 m or more, subject to minimum order quantities. -
Q: What is the typical lead time for this product?
A: For standard sizes and quantities, lead time is approximately 15–30 days after order confirmation. Custom orders may require longer. -
Q: Do you offer coating options for corrosion protection?
A: Yes, we offer black painting, varnish, FBE (fusion bonded epoxy), and 3PE (three-layer polyethylene) coating. Please specify your requirements. -
Q: How is the pipe shipped?
A: Pipes are packed in bundles or loose, loaded in containers or break-bulk vessels. We ensure proper protection during transit. -
Q: What is your minimum order quantity?
A: Our MOQ for this pipe is typically 10 tons, but smaller quantities can be negotiated for sample orders.
Contact us today to discuss your high-pressure piping needs. With our ISO9001-certified production and global export capability, Hemaokang Steel is your trusted partner for API 5L Gr.B seamless pipes. Request a quote or send your inquiry for a prompt response.
Send Inquiry to This Supplier
1Yr
Year Established
2025
Annual Export Value
US$50 Million - US$100 Million
Total Employees
51 - 100 People
Product Certifications
ISO9001
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