Import Flanges — Buy in wholesale FOB from Supplier in China
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Flanges
Yulin International Corporation supplies forged carbon steel and low alloy steel flanges certified to API 6A and API Spec Q1 standards, designed for high-pressure wellhead applications in oil and gas drilling. These flanges are manufactured from AISI 4130 and AISI 4140 materials, with pressure ratings up to 20,000 psi and operating temperatures ranging from -20°C to 204°C. The product is engineered for subsea and surface wellhead assemblies where integrity under extreme stress is non-negotiable.
The flanges feature butt-weld, threaded, or slip-on configurations as per API 6A Table 7, with standard face types including RTJ, RF, and FF. Material chemistry adheres to ASTM A182 F22 or F41 equivalents, with traceability provided via heat lot numbers. Typical mechanical properties include a minimum tensile strength of 758 MPa and impact toughness validated at -29°C. These are not generic fittings but mission-critical components requiring full metallurgical compliance.
Buyers include drilling contractors, EPC firms, and subsea equipment integrators sourcing for projects in the North Sea, Gulf of Mexico, and Southeast Asia. Packaging is customised to prevent corrosion during ocean transit, with individual flanges wrapped in VCI paper and secured in wooden crates. Lead times are typically 6 to 10 weeks depending on size and certification batch. MOQ is negotiable but starts at one full container load for standard sizes.
| Material | Forged carbon steel (AISI 4130) and low alloy steel (AISI 4140) |
| Standards | API 6A, API Spec Q1 |
| Pressure Rating | Up to 20,000 psi (Class 20K) |
| Temperature Range | -20°C to 204°C |
| Face Type | RTJ, RF, FF (as per API 6A Table 7) |
| Tensile Strength | Minimum 758 MPa (typical for AISI 4140 forgings) |
| Impact Test Temperature | -29°C (standard for low-temperature service) |
| Certification | Heat lot traceability provided; mill test reports available upon request |
| Typical Manufacturing Process | Forged, machined, heat treated, and non-destructively tested per API 6A |
| Typical Packaging | VCI paper wrapped, wooden crate, desiccant included (standard for marine transport) |
Yulin International Corporation operates from Shanghai, with its manufacturing and quality control based in Jiangsu Province. The company is registered as a manufacturer of wellhead equipment and holds a harbor-tier verification status, indicating active trade history and documented export compliance. There is no public information on factory size, workforce, or annual revenue. The listing confirms production capability but does not state client names, certifications beyond API 6A, or in-house testing labs.
Response metrics show no recorded replies, suggesting limited buyer engagement or internal resource constraints. This does not imply product quality but indicates the need for direct communication to confirm technical details. The supplier does not claim ISO certification, third-party inspections, or global distribution networks. Buyers should treat this as a direct manufacturer with focused output, not a broad distributor.
API 6A and API Spec Q1 certified wellhead flanges are critical connectors in upstream oil and gas wellhead assemblies, designed to withstand high-pressure environments in drilling and production operations. Manufactured from forged carbon steel or low alloy steel, these flanges meet stringent API 6A specifications for pressure, temperature, and material performance. Widely imported and exported for upstream projects, they are essential in subsea and surface wellhead installations worldwide. Pricing varies by size, pressure rating, and material grade.
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Sourcing Flanges from Yulin International Corporation - China Import Guide
Before placing an order, verify the heat treatment process, material certification (MTR), and pressure testing records for each batch. Confirm that the flanges are marked with the correct API 6A logo, material grade, and heat number as required by international standards. Request copies of previous inspection reports for similar orders to assess consistency. Do not accept flanges without traceable documentation, even if the supplier claims API compliance.
Lead time is typically 6 to 10 weeks from order confirmation, depending on the pressure class and quantity. Incoterms are usually FOB Shanghai or CIF, but EXW may be available for containerised shipments. Payment terms are commonly 30% advance and 70% against copy of B/L. Buyers should confirm whether the supplier uses bonded warehouses for pre-shipment storage and if they offer third-party inspection services like SGS or Bureau Veritas.
On delivery, inspect for surface defects, correct markings, and dimensional accuracy using calibrated tools. Perform a visual check of the RTJ groove finish and verify bolt hole alignment. Request a copy of the mill test report and NDT certificates. Retain a sample flange for future reference. If the flanges are for critical applications, arrange for independent metallurgical analysis before installation to validate composition and hardness.
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30 suppliersBuy Flanges in Bulk — Verified Supplier in China
When sourcing Flanges for your business, securing the right balance of quality and cost is essential. Yulin International Corporation, a verified supplier based in China, offers this product with key specifications including API 6A, API Spec Q1, ISO 10423, AA, BB, CC, DD, EE, FF (PSL 1-4), and 2,000 - 20,000 PSI. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1801,200./Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7307.19, making it a staple in the Flanges sector with strong demand from importing countries worldwide.
Flanges Specifications, Trade Terms & Pricing
Importing Flanges requires careful attention to shipping logistics, customs compliance, and secure payment terms. Yulin International Corporation 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 7307.19 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 import export marketplace designed to make cross-border trade secure and efficient.
About Yulin International Corporation — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Flanges 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 online B2B marketplace. Start your sourcing journey today.
Import Flanges — Shipping, Logistics & Customs
Importing Flanges 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 7307.19 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 Flanges
What is the wholesale price of Flanges?
The current listed wholesale price for Flanges from Yulin International Corporation is $1801,200./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 Yulin International Corporation through EximNext.
What is the Minimum Order Quantity (MOQ) for Flanges?
The supplier, Yulin International Corporation, has set a Minimum Order Quantity (MOQ) of 1 Bags for Flanges. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Flanges?
For international shipping and customs clearance, Flanges is classified under HS Code 7307.19. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Flanges from China?
To import Flanges from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Yulin International Corporation. Ensure you have the necessary import licenses for Flanges products in your destination country.
Is Yulin International Corporation a verified supplier?
Yes, Yulin International Corporation 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 Flanges?
The key specifications for Flanges supplied by Yulin International Corporation include API 6A, API Spec Q1, ISO 10423, AA, BB, CC, DD, EE, FF (PSL 1-4), and 2,000 - 20,000 PSI. 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 Flanges?
Yulin International Corporation offers Flanges with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Flanges the most?
Flanges is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Yulin International Corporation through our platform.
What certifications does this Flanges supplier hold?
Yulin International Corporation maintains international quality certifications. These ensure that the Flanges meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Flanges on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Yulin International Corporation 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 Yulin International Corporation.
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