Import Nickel Iron Alloy Kovar — Buy in wholesale FOB from Supplier in China
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Nickel Iron Alloy Kovar is a controlled‑expansion alloy composed of Nickel 29 %, Cobalt 17 % and Iron balance. The material conforms to ASTM F‑15 specifications and is supplied in sheet, rod and wire forms. Xian Gangyan Special Alloy Co., Ltd. lists the alloy with these nominal percentages and notes its suitability for hermetic sealing with borosilicate glass and ceramics. The alloy’s low thermal expansion makes it a standard choice for vacuum electronic components.
Typical grades of Kovar are offered with tensile strength around 350 MPa and a thermal expansion coefficient near 5 µm/(m·K) in the 0‑100 °C range, values that are common across the industry. The alloy is usually delivered in thicknesses from 0.1 mm to 5 mm and in diameters up to 50 mm for wire, matching standard machining tolerances of ±0.02 mm. It is processed under controlled atmospheres to minimise oxidation, a practice standard for high‑reliability alloys. These characteristics align with the requirements of precision electronic manufacturers.
Typical buyers include manufacturers of vacuum tubes, microwave tubes, transistors, diodes and integrated circuits that require a matched expansion coefficient with Pyrex glass. Trade terms are negotiated directly with the supplier; the listing does not state a minimum order quantity, lead time or incoterm, so buyers should confirm these details. Shipping is usually arranged in bulk crates or pallets, and payment is commonly secured by letter of credit for first orders. Prospective importers are advised to request material test reports and certification to verify compliance with ASTM F‑15.
| Nickel content | 29 % (as listed) |
| Cobalt content | 17 % (as listed) |
| Iron balance | balance (as listed) |
| ASTM standard | ASTM F‑15 (as listed) |
| Available forms | sheet, rod, wire (as listed) |
| Typical tensile strength | 350 MPa (typical) |
| Typical thermal expansion coefficient | 5 µm/(m·K) (typical) |
| Typical density | 8.4 g/cm³ (typical) |
| Typical thickness range | 0.1 mm - 5 mm (typical) |
| Typical packaging | bulk crates or pallets (typical) |
Xian Gangyan Special Alloy Co., Ltd. is based at No. 88 East Of Century Avenue, Xianyang City, Shaanxi Province, China, postal code 712046. The company is classified in the harbour trust tier on the platform, indicating a verified business registration. Its public profile does not include response statistics, showing a response rate of 0 % and no recorded average response time.
The supplier lists specialty nickel‑iron alloys such as Kovar and Super Invar, offering them in various forms for industrial applications. While the profile does not disclose production capacity or client list, the address and trust tier suggest a recognised manufacturing facility. Interested importers should contact the firm directly for detailed capability statements and any available quality certifications.
Kovar is a controlled-expansion alloy composed of Nickel 29%, Cobalt 17%, and Iron balance, engineered for matched thermal expansion with borosilicate glass and ceramic materials in hermetic sealing applications. Widely used in vacuum electronics, transistor headers, and semiconductor packaging, Kovar alloy meets ASTM F15 specifications and is available in sheet, rod, and wire forms for manufacturing and fabrication. This specialty alloy commands premium pricing due to its critical role in reliable electronic and aerospace sealing joints, with global supply sourced primarily from US, Germany, and Japan.
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Sourcing Nickel Iron Alloy Kovar from Xian Gangyan Special Alloy Co., Ltd. - China Import Guide
Before placing an order, importers should obtain the material test report confirming the Nickel, Cobalt and Iron percentages and the alloy’s compliance with ASTM F‑15. It is also prudent to ask for a mill test certificate that details the heat treatment and any surface finish applied. Verifying these documents helps ensure the alloy will meet the dimensional stability required for hermetic sealing.
Shipping arrangements are typically negotiated on a case‑by‑case basis; buyers should clarify the preferred Incoterm, such as FOB Xianyang Port or CIF Shanghai, and confirm the estimated lead time for the required forms and quantities. Payment for first shipments is commonly secured by an irrevocable letter of credit, while repeat orders may allow open account terms after satisfactory performance. Discuss freight options, including container loading specifications, to avoid unforeseen handling costs.
Importers are advised to schedule a pre‑shipment inspection by an accredited third‑party agency to verify dimensions, surface condition and mechanical properties against the agreed specifications. Upon arrival, request the accompanying certificate of conformity, test report and packing list for customs clearance. Maintaining a record of these documents supports future quality audits and supplier performance reviews.
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11 listingsTop Verified Suppliers for Nickel Iron Alloy Kovar
30 suppliersBuy Nickel Iron Alloy Kovar in Bulk — Verified Supplier in China
When sourcing Nickel Iron Alloy Kovar for your business, securing the right balance of quality and cost is essential. Xian Gangyan Special Alloy Co., Ltd., a verified supplier based in China, offers this product with key specifications including Kovar (ASTM F15, UNS K94610, FeNiCo Alloy), Nickel 29%, Cobalt 17%, Iron Balance (approx. 54%), and Ingots, Rods, Sheets, Wire, Strip (as required). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $2149/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7502.20, making it a staple in the Nickel Alloy sector with strong demand from importing countries worldwide.
Nickel Iron Alloy Kovar Specifications, Trade Terms & Pricing
Importing Nickel Iron Alloy Kovar requires careful attention to shipping logistics, customs compliance, and secure payment terms. Xian Gangyan Special Alloy 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 7502.20 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 Xian Gangyan Special Alloy Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Nickel Iron Alloy Kovar 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 Nickel Alloy category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Nickel Iron Alloy Kovar — Shipping, Logistics & Customs
Importing Nickel Iron Alloy Kovar 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 7502.20 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 Nickel Iron Alloy Kovar
What is the wholesale price of Nickel Iron Alloy Kovar?
The current listed wholesale price for Nickel Iron Alloy Kovar from Xian Gangyan Special Alloy Co., Ltd. is $2149/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 Xian Gangyan Special Alloy Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Nickel Iron Alloy Kovar?
The supplier, Xian Gangyan Special Alloy Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Nickel Iron Alloy Kovar. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Nickel Iron Alloy Kovar?
For international shipping and customs clearance, Nickel Iron Alloy Kovar is classified under HS Code 7502.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Nickel Iron Alloy Kovar from China?
To import Nickel Iron Alloy Kovar from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Xian Gangyan Special Alloy Co., Ltd.. Ensure you have the necessary import licenses for Nickel Alloy products in your destination country.
Is Xian Gangyan Special Alloy Co., Ltd. a verified supplier?
Yes, Xian Gangyan Special Alloy 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 Nickel Iron Alloy Kovar?
The key specifications for Nickel Iron Alloy Kovar supplied by Xian Gangyan Special Alloy Co., Ltd. include Kovar (ASTM F15, UNS K94610, FeNiCo Alloy), Nickel 29%, Cobalt 17%, Iron Balance (approx. 54%), and Ingots, Rods, Sheets, Wire, Strip (as required). 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 Nickel Iron Alloy Kovar?
Xian Gangyan Special Alloy Co., Ltd. offers Nickel Iron Alloy Kovar with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Nickel Iron Alloy Kovar the most?
Nickel Iron Alloy Kovar is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Xian Gangyan Special Alloy Co., Ltd. through our platform.
What certifications does this Nickel Iron Alloy Kovar supplier hold?
Xian Gangyan Special Alloy Co., Ltd. maintains international quality certifications. These ensure that the Nickel Iron Alloy Kovar meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Nickel Iron Alloy Kovar on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Xian Gangyan Special Alloy 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 Xian Gangyan Special Alloy Co., Ltd..
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