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316L Stainless Steel Pipe DN50 3mm Wall Thickness Welded Pipe ASTM A312 Standard Compliant
Product Spotlights
Hemaokang Steel’s DN50 316L welded pipe, 3mm wall, ASTM A312 compliant, offers superior corrosion resistance, excellent weldability, and precise dimensions. Backed by ISO9001, US$50M+ annual exports, and global delivery. Ideal for chemical, marine, and food industries. Customizable lengths and finishes available.
Negotiable
MOQ: 1 Ton (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, 316L Stainless Steel
Type:
Other, Welded Pipe
standard:
ASTM A312
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Port
Delivery Detail:
7 days
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Material
Other, 316L Stainless Steel
Type
Other, Welded Pipe
standard
ASTM A312
nominal_diameter
DN50 (2 inches)
wall_thickness
3mm
length
6 meters (customizable)
surface_finish
Annealed and Pickled (optional bright finish)
application
Petrochemical, Food Processing, Marine, Pharmaceutical
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality 316L stainless steel welded pipes in DN50 (2-inch) nominal diameter with a 3mm wall thickness, fully compliant with ASTM A312 standards. Our pipes are manufactured using premium raw materials and advanced welding technology, ensuring excellent corrosion resistance, mechanical strength, and dimensional accuracy. Whether you need pipes for chemical processing, marine environments, or food industry applications, our 316L grade provides superior performance in harsh conditions.
Key Features & Technical Specifications
- Material Grade: 316L (UNS S31603) – Low carbon version of 316, offering enhanced resistance to intergranular corrosion after welding.
- Standard Compliance: ASTM A312 – Seamless and welded austenitic stainless steel pipe specification.
- Dimensions: DN50 (2″ NPS), OD approx. 60.3mm, wall thickness 3mm (Schedule 10S equivalent).
- Manufacturing Process: TIG welding with 100% autogenous penetration, followed by heat treatment and pickling.
- Surface Finish: Annealed and pickled (optional bright/polished finish available upon request).
- Length: Standard 6 m (custom lengths available per order).
- Testing: Hydrostatic testing, eddy current testing, and mechanical property testing per ASTM A312.
- Packaging: Bundled with plastic caps, wrapped in waterproof paper, or wooden crates for export.
| Parameter | Value |
|---|---|
| Nominal Diameter (DN) | DN50 (2″) |
| Outside Diameter (OD) | 60.3 mm ±0.5 mm |
| Wall Thickness | 3 mm (±10%) |
| Standard Length | 6 m (customizable) |
| Chemical Composition (max %) | C:0.03, Mn:2.0, P:0.045, S:0.03, Si:0.75, Cr:16.0-18.0, Ni:10.0-14.0, Mo:2.0-3.0 |
| Tensile Strength (min) | 485 MPa |
| Yield Strength (min) | 170 MPa |
Why Choose Our 316L Stainless Steel Pipe?
- Excellent Corrosion Resistance: The 316L grade with molybdenum addition provides superior resistance to chlorides, acids, and harsh chemicals, making it ideal for marine, chemical, and pharmaceutical industries.
- Weldability & Fabrication: Low carbon content minimizes carbide precipitation during welding, ensuring strong, durable joints without post-weld heat treatment.
- Dimensional Precision: Our pipes are manufactured using advanced CNC tube mills and strict quality control, guaranteeing tight tolerances and consistent wall thickness.
- Versatile Applications: Suitable for pressure piping, heat exchangers, food processing equipment, architectural structures, and more.
- Certified Quality: Our factory is ISO9001 certified, and each pipe is tested to meet ASTM A312 requirements, including hydrostatic and eddy current tests.
- Customizable Options: Available in various lengths, surface finishes (bright, polished, pickled), and edge preparations (beveled, square cut).
Trust & Reliability
Hemaokang Steel (Shandong) Co., Ltd., established in 2025, has rapidly grown to become a reliable supplier in the global steel market. With an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we serve customers across North America, South America, Europe, Africa, Asia, and Oceania. Our ISO9001 certification reflects our commitment to quality management. We offer competitive pricing, timely delivery, and comprehensive after-sales support. Contact us today for a quote or technical consultation—your satisfaction is our priority.
Frequently Asked Questions (FAQ)
-
What is the difference between 316L and 316 stainless steel?
316L contains lower carbon (≤0.03%) compared to 316 (≤0.08%), which reduces the risk of intergranular corrosion during welding. 316L is preferred for welded applications. -
Is this pipe suitable for high-pressure applications?
Yes, the 3mm wall thickness on DN50 pipe provides a pressure rating suitable for many industrial systems. For exact pressure ratings, please consult our technical team with your specific working conditions. -
Can you provide custom lengths or cut-to-size service?
Absolutely. We can supply pipes in standard 6m lengths, or cut to your required lengths (subject to minimum order quantity). -
What surface finishes are available?
Standard finish is annealed and pickled (matte). We also offer bright annealed, polished (#4, #8), or sandblasted finishes upon request. -
Do you provide mill test certificates (MTC)?
Yes, each shipment includes a Mill Test Certificate per EN 10204 Type 3.1, showing chemical composition and mechanical properties. -
What is the lead time for this product?
Typical lead time is 15–25 days after order confirmation, depending on quantity and customization. Express delivery can be arranged. -
Can I get a sample before bulk order?
Yes, we offer free samples (shipping cost paid by buyer) for evaluation. Please contact our sales team. -
How do you ensure the pipe is ASTM A312 compliant?
Every batch undergoes rigorous testing: chemical analysis, tensile test, flattening test, hydrostatic test, and eddy current inspection. Our ISO9001 quality system ensures traceability and compliance.
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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