Import 253ma Pipes , F44 Bars , 1.4835 Tubes — Buy in wholesale FOB from Supplier in China
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253ma Pipes , F44 Bars , 1.4835 Tubes
Shangdun Special Materials Co.Ltd. supplies 253MA, UNS S30815, F44, and 1.4835 super austenitic stainless steel in seamless pipe, tube, bar, and forged flange forms. The material is a nitrogen-alloyed austenitic grade with deliberate additions of cerium to improve oxide scale adhesion at temperatures up to 1150 degrees C. The source indicates compliance with ASME SA213 and ASTM A312 for pipes and tubes, ASME SA182 for forged flanges, and ASTM A276 for bars, though buyers should request mill test certificates to confirm the actual specification conformance of each heat number.
253MA achieves its elevated-temperature performance through a combination of 0.15 to 0.20 percent nitrogen solid-solution strengthening and a controlled rare-earth addition that promotes a protective chromium oxide layer. The microstructure remains fully austenitic at service temperature, eliminating the phase-transformation concerns of ferritic or martensitic heat-resistant grades. Typical applications include furnace radiant tubes, kiln furniture, petrochemical reformer tubes, and heat-treatment fixtures where both oxidation resistance and structural integrity under creep conditions are required. The source specifically references socket weld, weld neck, and slip-on flange configurations for high-temperature piping integration.
This alloy competes directly with other high-temperature austenitic grades such as 310S and RA330, but offers superior creep strength in the 850 to 1050 degrees C range due to its nitrogen content. Buyers are typically engineering contractors, furnace OEMs, petrochemical EPCs, and maintenance shops in the thermal processing sector. Shangdun's location in Jiaxing, Zhejiang Province, places it within the Yangtze River Delta industrial cluster with access to Shanghai port logistics. Confirm with the supplier whether the quoted standards are current edition, whether solution annealing is performed, and what non-destructive testing is included.
| Material Designation | 253MA / UNS S30815 / 1.4835 / F44 (super austenitic stainless steel) |
| Standards (Pipes/Tubes) | ASME SA213, ASTM A312 (supplier-stated; confirm edition year) |
| Standards (Forged Flanges) | ASME SA182 (supplier-stated; confirm class and grade marking) |
| Standards (Bars) | ASTM A276 (supplier-stated; confirm condition A or H) |
| Maximum Service Temperature | up to 1150 degrees C (supplier claim; confirm with creep rupture data) |
| Key Alloying Elements | Cr 20-22%, Ni 10-12%, Si 1.4-2.0%, N 0.15-0.20%, Ce 0.03-0.08% (typical for 253MA grade) |
| Product Forms Available | Seamless pipes, tubes, forged flanges, bars (from supplier description) |
| Flange Configurations | Socket weld, weld neck, slip-on (supplier-stated options) |
| Primary Resistance Properties | Oxidation resistance, sulfidation resistance, creep resistance (standard application profile for 253MA) |
| Typical NDT for Seamless Tubes | Eddy current or ultrasonic testing per ASTM E213/E214 (standard; confirm with supplier MTC) |
Shangdun Special Materials Co.Ltd. operates from Shisheng Industrial Park, Jiangding District, Jiaxing, Zhejiang Province, China, postal code 314000. The supplier carries an imported supplier tier and harbor trust tier on the platform, with a response rate of 0.00 percent and zero recorded average response hours, indicating no platform-mediated buyer communication history.
The company profile positions itself as a specialist in high-temperature heat-resistant alloys, specifically highlighting 253MA, S30815, F44, and 1.4835 grades. No information is provided about year of establishment, production capacity, number of employees, revenue, or specific end-user clients. Buyers should therefore conduct independent due diligence, including verification of the ISO 9001 or PED 2014/68/EU quality system status if European pressure equipment applications are intended, as these are not mentioned in the source.
We supply premium 253MA, F44, and 1.4835 super austenitic stainless steel flanges manufactured to ASME SA182 and ASTM A276 standards. These nitrogen-strengthened flanges offer outstanding oxidation and creep resistance at elevated temperatures up to 1150°C, making them ideal for thermal processing, furnace components, and chemical processing applications. Available as socket weld, weld neck, and slip-on configurations for seamless integration in high-temperature piping systems.
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Sourcing 253ma Pipes , F44 Bars , 1.4835 Tubes from Shangdun Special Materials Co.Ltd. - China Import Guide
Before ordering from Shangdun Special Materials Co.Ltd., verify that the ASME SA213, ASTM A312, SA182, and A276 references correspond to current code editions applicable to your project jurisdiction. Request a sample mill test certificate for a recent heat to confirm that chemical analysis includes all specified elements, particularly nitrogen and cerium, and that mechanical testing was performed at room temperature with the correct sampling location. For pressure equipment applications, confirm whether the material has been evaluated by an ASME-accredited third party and if a material manufacturer certificate of compliance is available.
Logistics for shipment from Jiaxing typically route through Shanghai port. Confirm Incoterms, as EXW Jiaxing, FOB Shanghai, or CIF destination each carries different cost and risk allocations. For seamless tubes and bars, standard sea freight packaging is wooden crates with VCI paper; for forged flanges, palletised steel strapping is typical. Payment terms should be negotiated based on order value and relationship history, a harbor-tier supplier with zero response history may expect 30 percent TT advance with 70 percent against documents, or an irrevocable letter of credit at sight for initial transactions.
On receipt, conduct positive material identification (PMI) by XRF or OES to verify the Cr, Ni, Si, N, and Ce content matches the MTC. Inspect for surface defects, dimensional conformance to ASTM A312/A276 tolerances, and proper marking including heat number and grade. For tube applications, perform dimensional checks on OD, wall thickness, and length, and consider requalification mechanical testing if the application is critical. Store in a dry environment to prevent chloride-induced pitting prior to installation, as even residual salt from sea freight can initiate corrosion on austenitic stainless surfaces if moisture is present.
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30 suppliersBuy 253ma Pipes , F44 Bars , in Bulk — Verified Supplier in China
When sourcing 253ma Pipes , F44 Bars , 1.4835 Tubes for your business, securing the right balance of quality and cost is essential. Shangdun Special Materials Co.Ltd., a verified supplier based in China, offers this product with key specifications including 253MA (UNS S30815) / F44 (UNS S31200) / 1.4835, Super Austenitic Stainless Steel Flanges, High nitrogen super austenitic composition; Cr 20-24%, Ni 10-12%, N 0.14-0.20%, REM balanced Fe; PREN > 30, and NPS 1/2" to 48"; Pressure ratings ANSI/ASME Class 150 to 2500 / PN 20 to 420. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $20/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7307.21, making it a staple in the Flanges sector with strong demand from importing countries worldwide.
253ma Pipes , F44 Bars , Specifications, Trade Terms & Pricing
Importing 253ma Pipes , F44 Bars , requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shangdun Special Materials 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 7307.21 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 Shangdun Special Materials Co.Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 253ma Pipes , F44 Bars , 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 Flanges category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import 253ma Pipes , F44 Bars , — Shipping, Logistics & Customs
Importing 253ma Pipes , F44 Bars , 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 7307.21 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 253ma Pipes , F44 Bars ,
What is the wholesale price of 253ma Pipes , F44 Bars , 1.4835 Tubes?
The current listed wholesale price for 253ma Pipes , F44 Bars , 1.4835 Tubes from Shangdun Special Materials Co.Ltd. is $20/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 Shangdun Special Materials Co.Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 253ma Pipes , F44 Bars ,?
The supplier, Shangdun Special Materials Co.Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 253ma Pipes , F44 Bars ,. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 253ma Pipes , F44 Bars , 1.4835 Tubes?
For international shipping and customs clearance, 253ma Pipes , F44 Bars , 1.4835 Tubes is classified under HS Code 7307.21. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import 253ma Pipes , F44 Bars , from China?
To import 253ma Pipes , F44 Bars , from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shangdun Special Materials Co.Ltd.. Ensure you have the necessary import licenses for Flanges products in your destination country.
Is Shangdun Special Materials Co.Ltd. a verified supplier?
Yes, Shangdun Special Materials 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 253ma Pipes , F44 Bars , 1.4835 Tubes?
The key specifications for 253ma Pipes , F44 Bars , 1.4835 Tubes supplied by Shangdun Special Materials Co.Ltd. include 253MA (UNS S30815) / F44 (UNS S31200) / 1.4835, Super Austenitic Stainless Steel Flanges, High nitrogen super austenitic composition; Cr 20-24%, Ni 10-12%, N 0.14-0.20%, REM balanced Fe; PREN > 30, and NPS 1/2" to 48"; Pressure ratings ANSI/ASME Class 150 to 2500 / PN 20 to 420. 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 253ma Pipes , F44 Bars ,?
Shangdun Special Materials Co.Ltd. offers 253ma Pipes , F44 Bars , with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 253ma Pipes , F44 Bars , the most?
253ma Pipes , F44 Bars , is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shangdun Special Materials Co.Ltd. through our platform.
What certifications does this 253ma Pipes , F44 Bars , supplier hold?
Shangdun Special Materials Co.Ltd. maintains international quality certifications. These ensure that the 253ma Pipes , F44 Bars , meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 253ma Pipes , F44 Bars , 1.4835 Tubes on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shangdun Special Materials 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 Shangdun Special Materials Co.Ltd..
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