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Manufacturer ASTM C276 304L 316L Stainless Steel Alloy Seamless Tube Ep Grade
Product Spotlights
Premium seamless tubes in ASTM C276, 304L, and 316L alloys with an Electropolished (EP) finish. Offers exceptional corrosion resistance, a ultra-smooth contaminant-resistant surface, and seamless construction for high-pressure integrity. Ideal for critical applications in chemical, pharmaceutical, and high-purity industries. Custom sizes and full certification support available.
Negotiable
MOQ: 100 Kilograms (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, ASTM C276 / 304L / 316L Stainless Steel
Type:
Other, Seamless Tube
Grade:
EP (Electro Polished)
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
15 days
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Material
Other, ASTM C276 / 304L / 316L Stainless Steel
Type
Other, Seamless Tube
Grade
EP (Electro Polished)
Standard
ASTM B622, B626, B619, B775
Application
Chemical Processing, Pharmaceutical, Marine
Corrosion Resistance
Excellent resistance to a wide range of chemicals
Surface Finish
Electropolished, bright annealed available
Manufacturing Process
Cold drawn, solution annealed
As a leading manufacturer with over 7 years of expertise, Wuxi Yansheng Technology Co., Ltd. specializes in producing premium ASTM C276, 304L, and 316L stainless steel alloy seamless tubes in EP (Electropolished) grade. Our tubes are engineered for critical applications where corrosion resistance, purity, and structural integrity are non-negotiable. We combine advanced manufacturing processes with stringent quality controls to deliver products that meet the exacting standards of global industries.
Core Product Features & Technical Advantages:
-
Superior Material Selection: We offer a range of high-performance alloys:
- ASTM C276 (Hastelloy C276): A nickel-molybdenum-chromium alloy with tungsten, known for its outstanding resistance to a wide variety of severe corrosive environments, including oxidizing and reducing media.
- 304L Stainless Steel: A low-carbon version of 304, excellent for general corrosion resistance and widely used in food processing, architectural, and chemical applications.
- 316L Stainless Steel: Contains molybdenum for enhanced corrosion resistance, particularly against chlorides and acids. Ideal for marine, pharmaceutical, and chemical processing equipment.
-
Electropolished (EP) Grade Finish: The electropolishing process removes a thin layer from the surface, resulting in a smooth, mirror-like finish that:
- Reduces surface roughness and minimizes adhesion points for contaminants.
- Enhances corrosion resistance by forming a more uniform passive oxide layer.
- Improves cleanability and is essential for hygienic and high-purity applications.
-
Seamless Construction: Manufactured through a piercing and cold drawing process, our seamless tubes offer:
- Uniform wall thickness and concentricity.
- Higher pressure ratings and better mechanical properties compared to welded tubes.
- No weld seam, eliminating a potential weak point for corrosion and contamination.
- Precision Manufacturing & Quality Assurance: Our 1,000-3,000 square meter facility is equipped with state-of-the-art machinery. Every batch undergoes rigorous testing, including dimensional checks, hydrostatic/pneumatic testing, and chemical analysis to ensure compliance with international standards.
Key Technical Specifications:
| Parameter | Details |
|---|---|
| Applicable Standards | ASTM B622 (Seamless Pipe & Tube), B626 (Welded), B619 (Welded Fittings), B775 (General Requirements) |
| Common Sizes (OD) | 1/8" to 12" (Custom sizes available upon request) |
| Wall Thickness | Schedule 5S to XXS, or as per customer specifications |
| Length | Random lengths (typically 6m), cut-to-length, or U-bend tubes |
| Heat Treatment | Solution Annealed & Quenched for optimal corrosion resistance |
| Testing | Hydrostatic, Eddy Current, Ultrasonic, PMI (Positive Material Identification) |
Benefits for Your Business:
- Extended Equipment Life: The exceptional corrosion resistance of these alloys, especially C276, reduces maintenance costs and downtime.
- Process Integrity & Safety: Seamless and electropolished construction ensures product purity, prevents contamination, and maintains system integrity under high pressure.
- Regulatory Compliance: Our manufacturing processes adhere to a comprehensive suite of quality management systems, facilitating your own compliance with industry regulations.
- Global Supply Reliability: With an annual export value of US$50-100 Million and major ports like Shanghai and Tianjin for shipment, we ensure timely and reliable delivery to markets worldwide.
Frequently Asked Questions (FAQ):
-
Q: What is the primary advantage of ASTM C276 over 316L?
A: While 316L offers good general corrosion resistance, ASTM C276 (Hastelloy C276) provides far superior resistance in highly corrosive environments containing chlorides, sulfuric acid, phosphoric acid, and oxidizing salts, making it suitable for the most demanding chemical processing applications. -
Q: Is the Electropolished (EP) finish necessary for my application?
A: The EP finish is highly recommended for applications requiring ultra-clean surfaces, such as semiconductor manufacturing, pharmaceutical bioprocessing, high-purity food and beverage lines, and any system where minimizing bacterial adhesion or product contamination is critical. -
Q: Can you provide custom sizes and specifications?
A: Yes, as a manufacturer, we specialize in customization. We can produce tubes to your exact outside diameter, wall thickness, length, and tolerance requirements. Please provide your detailed specifications for a quote. -
Q: What certifications do your products hold?
A: Our production is backed by a robust quality management system certified to ISO9001, ISO14000, OHSAS18001, among others. Material test certificates (MTC) and compliance reports are provided with each shipment. -
Q: How do you ensure the quality of your seamless tubes?
A: Quality is integrated into every step. We perform raw material inspection, in-process dimensional monitoring, non-destructive testing (NDT) like eddy current, and final inspection including hydrostatic testing. Full traceability is maintained. -
Q: What are your main shipping ports and lead times?
A: We primarily ship from Shanghai Port, Tianjin Port, Qingdao Port, and Ningbo Port. Lead times vary based on product specification and quantity, but we strive for efficient production schedules to meet your project timelines. -
Q: Do you supply fittings and flanges compatible with these tubes?
A: We can supply matching fittings, flanges, and other pipeline components in the same alloy and grade upon request, ensuring a complete and compatible system for your project. -
Q: What industries commonly use your EP grade seamless tubes?
A: Our tubes are widely used in chemical and petrochemical processing, pharmaceutical and biotechnology, oil & gas (downhole and surface), power generation (FGD systems), pulp and paper, marine, and food & beverage processing.
Backed by a workforce of 101-200 dedicated professionals and a commitment to excellence evidenced by our multiple international certifications, Wuxi Yansheng Technology is your reliable partner for high-performance alloy tubing. Our products serve a global clientele across North America, Europe, Asia, and beyond, proving their reliability in the field. Choose our ASTM C276, 304L, and 316L EP Grade seamless tubes for a combination of material excellence, manufacturing precision, and surface purity that safeguards your critical processes. Contact us today to discuss your specific requirements and receive a competitive quotation.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2017
Factory Size
1,000-3,000 square meters
Annual Export Value
US$50 Million - US$100 Million
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