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Home > Metallurgy, Mineral & Energy > Steel & Products > Steel Pipe & Tube > 316L Stainless Steel Pipe for Oil and Gas Industry Seamless Sch80 3/4" to 6" NPS

316L Stainless Steel Pipe for Oil and Gas Industry Seamless Sch80 3/4" to 6" NPS

Product Spotlights

316L seamless Sch80 pipe for oil & gas – excellent corrosion resistance, high strength, wide size range 3/4" to 6" NPS. ISO9001 certified, customizable, with global export experience from Hemaokang Steel (US$50M+ annual export).

Negotiable MOQ: 1 Ton (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, 316L Stainless Steel

size_range:

3/4“ to 6“ NPS

wall_thickness:

Sch80

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Hemaokang Steel (Shandong) Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao Port

Delivery Detail:

7 days

Product Details
Company Profile
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Material Other, 316L Stainless Steel

size_range 3/4“ to 6“ NPS

wall_thickness Sch80

standard ASTM A312 / ASME SA312

connection_type Seamless

application Oil and Gas Industry

surface_treatment Pickled, Annealed, or Customized

certification ISO9001

Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality 316L Stainless Steel Seamless Pipe designed specifically for the demanding oil and gas industry. With an annual export value exceeding US$50 million and a dedicated team of 51–100 experienced professionals, we ensure every pipe meets rigorous international standards. Our Sch80 schedule pipes range from 3/4" to 6" NPS, providing exceptional corrosion resistance, high strength, and long service life in harsh environments. Whether you need reliable transport of corrosive fluids or structural integrity in offshore platforms, our 316L seamless pipes are the ideal solution.

Key Features & Technical Specifications

Superior Corrosion Resistance: 316L stainless steel contains molybdenum, offering excellent resistance to chlorides, acidic gases, and sulfide stress cracking – critical for upstream and downstream oil & gas applications.
Seamless Manufacturing: No welded seams means uniform strength, reduced risk of leakage, and better performance under high pressure and temperature variations.
Sch80 Wall Thickness: Provides additional safety margin for high-pressure systems, complying with industry standards for heavy-duty service.
Wide Size Range: Available from 3/4" to 6" NPS (Nominal Pipe Size), accommodating various piping layouts and flow requirements.
Full Traceability: Each pipe is marked with heat number, grade, and size, ensuring complete quality control from raw material to final product.
Customizable Options: Lengths, end finishes (beveled, plain, threaded), and surface treatments (pickled, annealed, polished) are available upon request to meet your project specifications.

Technical Parameters (Typical)

Parameter	Value
Material Grade	316L (UNS S31603)
Standard	ASTM A312 / ASME SA312
Schedule	Sch80
Size Range (NPS)	3/4" to 6"
Wall Thickness	Per ASME B36.19 for Sch80
Tensile Strength (min)	485 MPa (70,000 psi)
Yield Strength (min)	170 MPa (25,000 psi)
Elongation (min)	30%
Hardness (HRB max)	95

Advantages for Oil & Gas Applications

Resistance to Sour Service: 316L's low carbon content minimizes carbide precipitation during welding, maintaining corrosion resistance in H₂S environments (NACE MR0175 compliant when properly processed).
High Temperature Performance: Suitable for continuous service up to 870°C (1600°F) in oxidizing atmospheres, and intermittent use even higher.
Easy Fabrication: Excellent weldability and formability allow for complex piping systems without compromising integrity.
Cost-Effective Lifecycle: Reduced maintenance and replacement frequency compared to lower-grade stainless steels or carbon steel with coatings.

Trust & Reliability from Hemaokang Steel

Since our establishment in 2025, Hemaokang Steel (Shandong) Co., Ltd. has rapidly grown into a trusted supplier for global oil & gas projects. Our factory in Liaocheng, Shandong, leverages advanced manufacturing equipment and a skilled workforce of 51–100 employees. With an annual export value of US$50 million – US$100 million, we have successfully delivered to markets across North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. Our ISO9001 certification ensures every production step – from raw material inspection to final testing – meets strict quality standards. We are committed to providing competitive pricing, on-time delivery, and exceptional after-sales support. Contact us today to discuss your specific requirements and experience the Hemaokang difference.

Frequently Asked Questions

Q: What is the difference between 316 and 316L stainless steel pipe?
A: 316L has a lower carbon content (max 0.03% vs. 0.08% for 316), which reduces the risk of carbide precipitation during welding, making it more suitable for welded applications in corrosive environments like oil & gas.
Q: Can you provide custom lengths or end finishes?
A: Yes, we offer customizable lengths (single random, double random, or specific cut lengths) and end finishes including beveled, plain, and threaded. Please specify your requirements when ordering.
Q: Is this pipe suitable for sour gas (H₂S) service?
A: 316L stainless steel is generally resistant to sulfide stress cracking in sour environments, but we recommend verifying compliance with NACE MR0175/ISO 15156 for your specific operating conditions. Additional heat treatment or testing may be required.
Q: What is the typical delivery time for Sch80 316L seamless pipes?
A: For standard sizes (3/4" to 6"), we typically ship within 15–30 days after order confirmation, depending on quantity and customization. Faster delivery can be arranged for urgent projects.
Q: Do you provide third-party inspection or certification?
A: Yes, we can arrange third-party inspection by SGS, BV, or other agencies at the buyer's cost. Additionally, mill test certificates (MTC) per EN 10204 3.1 are included with each shipment.
Q: How do you ensure the quality of the pipe?
A: Our quality control includes chemical composition analysis, mechanical property testing, hydrostatic testing, eddy current or ultrasonic testing, and dimensional inspection. Our ISO9001 certification system ensures traceability and consistency.
Q: What is the minimum order quantity (MOQ)?
A: MOQ varies by size. For common sizes like 2" to 4", MOQ is typically 1 ton. For larger or smaller sizes, please contact our sales team for details.
Q: Can you supply pipes larger than 6" NPS in Sch80?
A: Our current standard range is 3/4" to 6" NPS Sch80. For larger diameters (8" to 24") in other schedules, we can source on request. Please inquire.