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Flange
This flange is manufactured from carbon steel A105, stainless steel 304 and 316, or alloy steel, designed for high-pressure industrial applications. All units conform to ANSI pressure ratings from Class 150 to Class 2500, with dimensions matching ASME B16.5 standards for nominal pipe sizes. The product is forged to ensure structural integrity under extreme pressure and temperature conditions.
Carbon steel A105 flanges are typical for oil and gas pipelines where corrosion resistance is secondary to mechanical strength. Stainless steel variants, particularly 316, are used in aggressive environments such as chemical processing or seawater systems due to their molybdenum content enhancing pitting resistance. Alloy steel flanges are selected for high-temperature service above 400°C, commonly in power generation plants. Surface finish is standard as per ASTM A105, with no additional coating unless specified.
These flanges are exported globally for use in oil and gas infrastructure, petrochemical refineries, water treatment facilities, and thermal power stations. Buyers typically order in bulk for pipeline construction projects. Packaging is standard for containerized sea freight: individually wrapped in anti-rust paper, bundled in wooden crates, and labeled with material grade, size, and pressure class. Lead time and minimum order quantity must be confirmed directly with the supplier.
| Material | Carbon Steel A105, Stainless Steel 304, Stainless Steel 316, Alloy Steel |
| Pressure Rating | ANSI Class 150 to Class 2500 |
| Standards | ASME B16.5, ASTM A105, ASTM A182 |
| Nominal Pipe Size | 1/2 inch to 24 inch |
| Type | Weld Neck, Slip On, Blind, Threaded, Socket Weld |
| Surface Finish | Typical RA 3.2 μm as per ASTM A105 |
| Forging Process | Hot forged, normalized and tempered for carbon steel variants |
| Chemical Composition (316 SS) | Typical: 16-18% Cr, 10-14% Ni, 2-3% Mo, ≤0.08% C |
| Tensile Strength (A105) | Typical minimum 485 MPa |
| Packaging | Anti-rust paper wrap, wooden crate, labeled with grade, size, and pressure class |
Shanghai Changhao High Pressure Pipefittings Co., Ltd. operates from Pudong, Shanghai, with a focus on forged flanges for high-pressure systems. The company is registered as a manufacturer with no public disclosure of annual output, workforce size, or client list. Its trust tier is harbor, indicating basic supplier verification but no third-party audit or certification claims.
The listing confirms production capability in carbon steel, stainless steel, and alloy steel flanges meeting ANSI standards. No information is provided regarding testing protocols, quality control systems, or export experience beyond general statements about international trade. Buyers should request material test reports and forging certificates before placing bulk orders.
This range of industrial flanges covers all common sizes and ANSI pressure ratings (Class 150 through Class 2500), manufactured in Carbon Steel (A105/WCB), Stainless Steel (304/316), and Alloy Steel grades. Suitable for oil and gas pipelines, petrochemical, water treatment, and power generation applications. Widely traded internationally with standard export packaging forcontainerized sea freight.
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Sourcing Flange from Shanghai Changhao High Pressure Pipefittings Co., Ltd. - China Import Guide
Before ordering, verify the material test reports for each heat lot, confirming chemical composition and mechanical properties against ASTM standards. Request certification for heat treatment processes, especially for carbon steel and alloy steel flanges. Ensure the supplier can provide traceable documentation for every batch, as undocumented material is unacceptable in high-pressure systems.
Confirm the Incoterms offered, typically FOB Shanghai or CIF destination port. Lead time for forged flanges ranges from 4 to 8 weeks depending on order size and material grade. Payment terms are commonly 30% advance, 70% against shipping documents. Buyers should request packaging details and container loading photos to avoid transit damage.
Perform incoming inspection for surface cracks, dimensional accuracy, and proper marking. Use a spectrometer to verify alloy composition if critical. Check bolt hole alignment with a template. Retain samples from each shipment for future reference. Ensure all documentation includes the supplier's name, material grade, pressure class, and batch number to meet international project compliance requirements.
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30 suppliersBuy Flange in Bulk — Supplier in China
When sourcing Flange for your business, securing the right balance of quality and cost is essential. Shanghai Changhao High Pressure Pipefittings Co., Ltd., a supplier based in China, offers this product with key specifications including A105, WCB, F304, F316, F11, F22, F91 | Weld Neck, Slip-On, Blind, Threaded, Socket Weld, Lap Joint, 1/2" - 48" NPS (DN15 - DN1200), and ANSI Class 150, 300, 600, 900, 1500, 2500. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $50/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.
Flange Specifications, Trade Terms & Pricing
Importing Flange requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shanghai Changhao High Pressure Pipefittings 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 7307.19 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 B2B marketplace designed to make cross-border trade secure and efficient.
About Shanghai Changhao High Pressure Pipefittings Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Flange for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Flanges category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Flange — Shipping, Logistics & Customs
Importing Flange 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 Flange
What is the wholesale price of Flange?
The current listed wholesale price for Flange from Shanghai Changhao High Pressure Pipefittings Co., Ltd. is $50/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 Shanghai Changhao High Pressure Pipefittings Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Flange?
The supplier, Shanghai Changhao High Pressure Pipefittings Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Flange. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Flange?
For international shipping and customs clearance, Flange 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 Flange from China?
To import Flange from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shanghai Changhao High Pressure Pipefittings Co., Ltd.. Ensure you have the necessary import licenses for Flanges products in your destination country.
How can I check Shanghai Changhao High Pressure Pipefittings Co., Ltd. before ordering?
Open the Shanghai Changhao High Pressure Pipefittings Co., Ltd. company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Flange?
The key specifications for Flange supplied by Shanghai Changhao High Pressure Pipefittings Co., Ltd. include A105, WCB, F304, F316, F11, F22, F91 | Weld Neck, Slip-On, Blind, Threaded, Socket Weld, Lap Joint, 1/2" - 48" NPS (DN15 - DN1200), and ANSI Class 150, 300, 600, 900, 1500, 2500. 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 Flange?
Shanghai Changhao High Pressure Pipefittings Co., Ltd. offers Flange with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Flange the most?
Flange is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shanghai Changhao High Pressure Pipefittings Co., Ltd. through our platform.
What certifications does this Flange supplier hold?
Shanghai Changhao High Pressure Pipefittings Co., Ltd. maintains international quality certifications. These ensure that the Flange meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Flange on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shanghai Changhao High Pressure Pipefittings 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 Shanghai Changhao High Pressure Pipefittings Co., Ltd..
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