Import Super Duplex Stainless Steel Tubes — Buy in wholesale FOB from Supplier in China
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- Duplex Steel Seamless Pipes & Tubes
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Super Duplex Stainless Steel Tubes
Zhongzhou Special Alloy Tube Co., Ltd. supplies Super Duplex Stainless Steel Tubes fabricated from UNS S32750 / S32760 alloy with 25 % chromium, 7 % nickel, 3.5 % molybdenum and 0.25 % nitrogen. The tubes are produced seamless and meet both ASTM A789/A790 and EN 10216‑5 standards for duplex steel tubing. Standard outer diameters range from 6 mm to 610 mm, while wall thicknesses are typically offered between 1 mm and 30 mm. The listing highlights the material’s suitability for harsh oil‑and‑gas, chemical processing and marine environments where chloride stress cracking is a risk.
Compared with conventional austenitic grades, the S32750 (F53) and S32760 (F55) duplex grades deliver higher yield strength and superior pitting resistance, often classified as “super” duplex in industry guides. Typical pressure classes for these tubes are PN16 to PN25, and continuous service temperatures can reach 300 °C. Tubes are supplied in standard 6 m lengths and can be cut to customer‑specified sizes, with mill test reports provided for each batch. Zhongzhou maintains an export‑ready inventory, enabling prompt shipment for time‑critical projects.
Main purchasers are upstream oil field developers, offshore platform fabricators and chemical plant engineers who require long‑term durability under high pressure and corrosive media. Prospective buyers should verify the required diameter, wall schedule and any surface‑treatment requirements before confirming the order. Exact lead times, packaging options and incoterms are not disclosed in the listing and must be negotiated directly with Zhongzhou Special Alloy Tube Co., Ltd.
| Material | Super Duplex Stainless Steel UNS S32750 / S32760 (25 % Cr, 7 % Ni, 3.5 % Mo, 0.25 % N) |
| Standards | ASTM A789/A790, EN 10216‑5 - standard |
| Outer Diameter | 6 mm - 610 mm - typical range |
| Wall Thickness | 1 mm - 30 mm - typical range |
| Length | Standard 6 m, custom cuts available - typical |
| Pressure Rating | PN16 - PN25 - typical |
| Maximum Service Temperature | up to 300 °C - typical |
| Surface Condition | Mill finish, optional passivation - typical |
| Packaging | Export‑grade wooden crates, bundled - standard |
Zhongzhou Special Alloy Tube Co., Ltd. is situated in Shanghai’s Shisheng Industrial Park, Shanghai, China. The supplier holds a “harbor” trust tier and currently shows a 0 % response rate on the platform. It describes itself as a manufacturer of seamless piping, tubing, sheets, plates, fittings and flanges.
Their alloy portfolio includes duplex grades S31803 (F51), S32205 (F60), S32750 (F53), S32760 (F55) and a range of other stainless and high‑performance alloys such as S32900, S39277 and S32520. The company lists compliance with standards such as ASTM A213, A312M, ANSI B16.9 and DIN series, and notes that it can supply large quantities for export markets. No further commercial specifics are provided in the listing.
Super duplex stainless steel tubes are seamless piping products manufactured to ASTM A789/A790 and EN 10216-5 standards, available in UNS S32750 (F53) and UNS S32760 (F55) grades with typical outer diameters from 6mm to 610mm. These tubes offer superior corrosion resistance and mechanical strength, making them ideal for oil and gas, chemical processing, offshore, and marine applications where chloride stress cracking is a concern. Widely traded globally with export-standard packaging for international freight.
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Sourcing Super Duplex Stainless Steel Tubes from Zhongzhou Special Alloy Tube Co., Ltd - China Import Guide
Importers should first obtain the mill test report and confirm that the grade, chemical makeup and dimensions meet the project’s technical specifications. Verify that the tubes conform to ASTM A789/A790 and EN 10216‑5, and request traceability records for each heat number to ensure consistency across the shipment. This step helps avoid costly re‑work during fabrication.
Logistical planning typically involves container shipping from Shanghai, with Incoterms such as FOB, CIF or DDP commonly used. As the listing does not state a specific lead time, buyers need to ask Zhongzhou for production scheduling and estimated dispatch dates. Clarify whether the tubes will be packed in wooden crates, on pallets or bundled, and confirm any special handling requirements at the destination port.
Quality control can be reinforced by third‑party inspection before loading. Standard checks include visual inspection, dimensional measurement, ultrasonic wall‑thickness testing and review of the mill test report. Request certificates of compliance and any additional test certificates required for the intended application, and consider arranging post‑shipment inspection to verify condition upon arrival.
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Browse Super Duplex Stainless Steel Tubes — Top Products
31 listingsTop Verified Suppliers for Super Duplex Stainless Steel Tubes
30 suppliersBuy Super Duplex Stainless St in Bulk — Verified Supplier in China
When sourcing Super Duplex Stainless Steel Tubes for your business, securing the right balance of quality and cost is essential. Zhongzhou Special Alloy Tube Co., Ltd, a verified supplier based in China, offers this product with key specifications including UNS S32750 (F53), UNS S32760 (F55), UNS S32205 (F60), UNS S31803 (F51) Super Duplex Seamless Tubes, PREN >= 40; 25% Chromium, 7% Nickel, 3.5% Molybdenum, 0.25% Nitrogen, and OD 6mm - 610mm (1/4" - 24"); Wall Thickness 1mm - 25mm; Length 6m or custom. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $2000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7304.41, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Super Duplex Stainless St Specifications, Trade Terms & Pricing
Importing Super Duplex Stainless St requires careful attention to shipping logistics, customs compliance, and secure payment terms. Zhongzhou Special Alloy Tube Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7304.41 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Zhongzhou Special Alloy Tube Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Super Duplex Stainless St has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Steel Pipes category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Super Duplex Stainless St — Shipping, Logistics & Customs
Importing Super Duplex Stainless St requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7304.41 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Super Duplex Stainless St
What is the wholesale price of Super Duplex Stainless Steel Tubes?
The current listed wholesale price for Super Duplex Stainless Steel Tubes from Zhongzhou Special Alloy Tube Co., Ltd is $2000/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Zhongzhou Special Alloy Tube Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Super Duplex Stainless St?
The supplier, Zhongzhou Special Alloy Tube Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Super Duplex Stainless St. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Super Duplex Stainless Steel Tubes?
For international shipping and customs clearance, Super Duplex Stainless Steel Tubes is classified under HS Code 7304.41. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Super Duplex Stainless St from China?
To import Super Duplex Stainless St from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Zhongzhou Special Alloy Tube Co., Ltd. Ensure you have the necessary import licenses for Steel Pipes products in your destination country.
Is Zhongzhou Special Alloy Tube Co., Ltd a verified supplier?
Yes, Zhongzhou Special Alloy Tube Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Super Duplex Stainless Steel Tubes?
The key specifications for Super Duplex Stainless Steel Tubes supplied by Zhongzhou Special Alloy Tube Co., Ltd include UNS S32750 (F53), UNS S32760 (F55), UNS S32205 (F60), UNS S31803 (F51) Super Duplex Seamless Tubes, PREN >= 40; 25% Chromium, 7% Nickel, 3.5% Molybdenum, 0.25% Nitrogen, and OD 6mm - 610mm (1/4" - 24"); Wall Thickness 1mm - 25mm; Length 6m or custom. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Super Duplex Stainless St?
Zhongzhou Special Alloy Tube Co., Ltd offers Super Duplex Stainless St with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Super Duplex Stainless St the most?
Super Duplex Stainless St is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Zhongzhou Special Alloy Tube Co., Ltd through our platform.
What certifications does this Super Duplex Stainless St supplier hold?
Zhongzhou Special Alloy Tube Co., Ltd maintains international quality certifications. These ensure that the Super Duplex Stainless St meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Super Duplex Stainless Steel Tubes on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Zhongzhou Special Alloy Tube Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Zhongzhou Special Alloy Tube Co., Ltd.
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