Import Astm A182 F51 Lap Joint Flange — Buy in wholesale FOB from Supplier in China
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ASTM A182 F51 Lap Joint Flange
The ASTM A182 F51 lap joint flange from Zhengzhou Huitong Pipe Fittings is manufactured from duplex stainless steel UNS S31803 (2205 grade), offering superior corrosion resistance and high mechanical strength. This slip-on style flange is designed for use in oil and gas pipelines, chemical processing, and seawater applications where chloride resistance is critical. It is compatible with standard drilling and bore sizes, making it versatile for various piping systems.
Duplex stainless steel UNS S31803 typically contains approximately 22% chromium, 5% nickel, 2.5% molybdenum, and the balance iron, providing a two-phase microstructure that combines the benefits of austenitic and ferritic stainless steels. This composition delivers high tensile and yield strength, typically 620 MPa and 450 MPa respectively, along with excellent resistance to stress corrosion cracking and pitting. The flange is forged to meet ASTM A182 standards, with typical surface finishes of Ra 1.6 to 3.2 micrometers for mating faces.
Lap joint flanges are commonly used in systems requiring frequent disassembly, as they allow the stub end to rotate freely, simplifying alignment during installation. Buyers in the chemical, petrochemical, and offshore industries often specify F51 flanges for their resistance to chloride-induced corrosion and high strength-to-weight ratio. Confirm packaging, which is typically plywood or wooden cases, and request documentation such as material test certificates (MTC) per EN 10204 3.1. MOQ and lead time should be verified directly with the supplier.
| Material Grade | ASTM A182 F51 (UNS S31803 / 2205 Duplex Stainless Steel) |
| Manufacturing Process | Forged |
| Typical Chemical Composition | Typical 22% Cr, 5% Ni, 2.5% Mo, balance Fe |
| Typical Tensile Strength | Typical 620 MPa minimum (standard for UNS S31803) |
| Typical Yield Strength | Typical 450 MPa minimum (standard for UNS S31803) |
| Flange Type | Lap Joint (SO style) |
| Dimensional Standard | ASME B16.5, ANSI B16.47 Series A or B |
| Typical Surface Finish | Typical Ra 1.6 to 3.2 micrometers for mating faces |
| Corrosion Resistance | Superior resistance to chloride stress corrosion cracking and pitting |
| Packaging | Plywood case or wooden tray |
| Typical Hardness | Typical 28-32 HRC (standard for duplex stainless steel flanges) |
Zhengzhou Huitong Pipe Fittings operates from Room 2004, Expo Center, Dongfeng Road, Zhengzhou, Henan Province, China. The company specializes in manufacturing a wide array of flanges, including lap joint, slip-on, and weld neck types, in materials such as carbon steel, stainless steel, duplex stainless steel, and nickel alloys. Its product portfolio caters to industries requiring high-integrity piping components, including oil and gas, chemical processing, and offshore applications.
The supplier is classified under the imported trust tier and harbor trust tier, indicating a verified operational presence. However, no response rate or average response time data is available, so buyers should establish direct communication to assess responsiveness. The listing does not provide details on certifications, production capacity, or client history, so these should be confirmed during inquiries.
ASTM A182 F51 lap joint flange is manufactured from duplex stainless steel (UNS S31803 / 2205) offering superior corrosion resistance and high mechanical strength. This SO (slip-on) style flange is widely used in oil and gas pipelines, chemical processing, and seawater applications where chloride resistance is critical. Ideal for import/export trade, it connects easily to piping systems and is compatible with standard drilling/bore sizes.
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Sourcing ASTM A182 F51 Lap Joint Flange from Zhengzhou Huitong Pipe Fittings - China Import Guide
Before ordering ASTM A182 F51 lap joint flanges from Zhengzhou Huitong Pipe Fittings, verify the material grade and heat number to ensure traceability and compliance with UNS S31803 specifications. Request the material test certificate (MTC) per EN 10204 3.1 to confirm the chemical composition and mechanical properties. Additionally, check for third-party certifications such as PED or NACE, which may be required for specific applications but are not listed in the profile.
Confirm logistics details, including lead time, which is not specified. Forged duplex stainless steel flanges typically have lead times of 6 to 10 weeks, depending on size and quantity. Discuss Incoterms such as FOB or CIF, as well as payment terms, to align with your procurement process. Ensure the supplier can deliver to your preferred port, particularly for international shipments requiring specialized handling.
Quality checks should include dimensional verification against ASME B16.5 or B16.47, visual inspection for surface defects, and non-destructive testing (NDT) such as ultrasonic or liquid penetrant testing for critical applications. Request documentation for all tests, including hardness, tensile, and yield strength results. For chloride-rich environments, consider additional testing for pitting and crevice corrosion resistance to ensure long-term performance.
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30 suppliersBuy Astm A182 F51 Lap Joint F in Bulk — Verified Supplier in China
When sourcing Astm A182 F51 Lap Joint Flange for your business, securing the right balance of quality and cost is essential. Zhengzhou Huitong Pipe Fittings, a verified supplier based in China, offers this product with key specifications including ASTM A182 F51 (UNS S31803 / 2205 Duplex), Lap Joint (Slip-On / SO), and 1/2" to 48" (DN15 to DN1200), common sizes 2" to 24". By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1835./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. 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.
Astm A182 F51 Lap Joint F Specifications, Trade Terms & Pricing
Importing Astm A182 F51 Lap Joint F requires careful attention to shipping logistics, customs compliance, and secure payment terms. Zhengzhou Huitong Pipe Fittings 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 Zhengzhou Huitong Pipe Fittings — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Astm A182 F51 Lap Joint F 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 Astm A182 F51 Lap Joint F — Shipping, Logistics & Customs
Importing Astm A182 F51 Lap Joint F 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 Astm A182 F51 Lap Joint F
What is the wholesale price of Astm A182 F51 Lap Joint Flange?
The current listed wholesale price for Astm A182 F51 Lap Joint Flange from Zhengzhou Huitong Pipe Fittings is $1835./Unit 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 Zhengzhou Huitong Pipe Fittings through EximNext.
What is the Minimum Order Quantity (MOQ) for Astm A182 F51 Lap Joint F?
The supplier, Zhengzhou Huitong Pipe Fittings, has set a Minimum Order Quantity (MOQ) of 1 Unit for Astm A182 F51 Lap Joint F. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Astm A182 F51 Lap Joint Flange?
For international shipping and customs clearance, Astm A182 F51 Lap Joint Flange 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 Astm A182 F51 Lap Joint F from China?
To import Astm A182 F51 Lap Joint F from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Zhengzhou Huitong Pipe Fittings. Ensure you have the necessary import licenses for Flanges products in your destination country.
Is Zhengzhou Huitong Pipe Fittings a verified supplier?
Yes, Zhengzhou Huitong Pipe Fittings 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 Astm A182 F51 Lap Joint Flange?
The key specifications for Astm A182 F51 Lap Joint Flange supplied by Zhengzhou Huitong Pipe Fittings include ASTM A182 F51 (UNS S31803 / 2205 Duplex), Lap Joint (Slip-On / SO), and 1/2" to 48" (DN15 to DN1200), common sizes 2" to 24". 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 Astm A182 F51 Lap Joint F?
Zhengzhou Huitong Pipe Fittings offers Astm A182 F51 Lap Joint F with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Astm A182 F51 Lap Joint F the most?
Astm A182 F51 Lap Joint F is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Zhengzhou Huitong Pipe Fittings through our platform.
What certifications does this Astm A182 F51 Lap Joint F supplier hold?
Zhengzhou Huitong Pipe Fittings maintains international quality certifications. These ensure that the Astm A182 F51 Lap Joint F meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Astm A182 F51 Lap Joint Flange on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Zhengzhou Huitong Pipe Fittings 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 Zhengzhou Huitong Pipe Fittings.
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