Import Tungsten Heavy Alloy Ring — Buy in wholesale FOB from Supplier in China
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Hubei Fotma Machinery Co., Ltd. offers Tungsten Heavy Alloy Rings made from a WNiFe composition, supplied in four density grades named Densir 1 through Densir 4. Specific gravity varies from 16.5 g/cm³ for the lowest grade to 18.5 g/cm³ for the highest, and the product conforms to ASTM B777 as well as AMS 7725 standards commonly used for tungsten alloy components. The supplier’s data lists the rings as suitable for radiation absorption, high‑strength applications and thermal management.
In the industry, Densir grades are selected to match required mass and mechanical performance; higher density grades provide greater shielding effectiveness while retaining sufficient plasticity for machining. Typical ring dimensions are an inner diameter of 30 mm, outer diameter of 50 mm and a wall thickness of 5 mm, with a dimensional tolerance of ±0.1 mm. Surface finish is usually hot‑rolled with a roughness of Ra ≤ 3 µm, meeting the expectations of precision‑engineered parts.
The rings are employed in defence systems, aerospace balance weights, medical imaging equipment, EDM electrodes and as contacts in air‑circuit breakers. Buyers are generally manufacturers of high‑performance hardware that need reliable high‑density material. The supplier notes that bulk orders can be arranged under FOB or CIF terms and that ISO and SGS certification documents are available on request, while MOQ details are not disclosed in the listing.
| Material composition | WNiFe (tungsten‑heavy alloy) with typical tungsten content 90‑95 % |
| Density range | 16.5 g/cm³ - 18.5 g/cm³ depending on Densir grade (typical) |
| Standard | ASTM B777 or AMS 7725 (standard for tungsten heavy alloy rings) |
| Typical inner diameter | 30 mm (typical) |
| Typical outer diameter | 50 mm (typical) |
| Typical thickness | 5 mm (typical) |
| Dimensional tolerance | ±0.1 mm (typical) |
| Packaging | Cardboard box on wooden pallet, 20 rings per pallet (typical) |
Hubei Fotma Machinery Co., Ltd. is located at Guanggu Avenue 52#, Wuchang, Wuhan, Hubei, 430074, China and carries a harbor‑tier verification. The supplier’s response metrics show a 0 % response rate and no recorded response time, indicating that all communication must be initiated by the buyer.
The company manufactures tungsten‑heavy alloy rings across four Densir density grades and supplies them to international markets. Production follows ASTM B777 and AMS 7725 specifications, and the firm can provide ISO and SGS certification documentation when requested, supporting the material’s suitability for high‑performance applications.
Tungsten Heavy Alloy Rings in WNiFe composition are manufactured across density grades Densir 1 through Densir 4, offering specific gravity ranging from 16.5 to 18.5 g/cm3 depending on tungsten content. These rings provide exceptional radiation absorption capability, high strength with good plasticity, and superior thermal conductivity, making them ideal for defense, aerospace, medical imaging, and industrial counterweight applications. As a high-value engineered material, this product is traded internationally with typical bulk orders referencing ASTM B777 or AMS 7725 standards.
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Sourcing Tungsten Heavy Alloy Ring from Hubei Fotma Machinery Co., Ltd. - China Import Guide
Verify the exact Densir grade, density and dimensional tolerances before confirming an order. Request the material test report and any ISO or SGS certificates to ensure the alloy meets your project specifications, and confirm that the dimensions match the engineering drawing you intend to use. Because the supplier’s recorded response rate is 0 %, initiate contact early to establish a reliable communication line.
Discuss shipping arrangements, specifying whether FOB or CIF terms are preferred and confirming the departure port in China. Although lead‑time information is not listed, ask the supplier for an estimated production schedule and typical transit duration, and agree on payment terms such as T/T against a documentary letter of credit that suit both parties.
Plan for a third‑party inspection if required, and request a Certificate of Origin, packing list and any applicable test certificates before the goods leave the factory. Ensure that the palletised cardboard packaging complies with your import regulations and that the ring’s weight and density are recorded on the accompanying documentation. These steps help guarantee that the received product aligns with the technical specifications you have approved.
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30 suppliersBuy Tungsten Heavy Alloy Ring in Bulk — Verified Supplier in China
When sourcing Tungsten Heavy Alloy Ring for your business, securing the right balance of quality and cost is essential. Hubei Fotma Machinery Co., Ltd., a verified supplier based in China, offers this product with key specifications including Densir 1/2/3/4 (Density grades: 16.85, 17.65, 18.25, 18.85+ g/cm³), Tungsten (W) 90-98%, Nickel (Ni) 1.5-5%, Iron (Fe) 0.5-4.5% by weight, and Ring / Circle / Torus shape, near-net or machined finish. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8101.94, making it a staple in the Tungsten Products sector with strong demand from importing countries worldwide.
Tungsten Heavy Alloy Ring Specifications, Trade Terms & Pricing
Importing Tungsten Heavy Alloy Ring requires careful attention to shipping logistics, customs compliance, and secure payment terms. Hubei Fotma Machinery 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 8101.94 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 Hubei Fotma Machinery Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Tungsten Heavy Alloy Ring 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 Tungsten Products category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Tungsten Heavy Alloy Ring — Shipping, Logistics & Customs
Importing Tungsten Heavy Alloy Ring 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 8101.94 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 Tungsten Heavy Alloy Ring
What is the wholesale price of Tungsten Heavy Alloy Ring?
The current listed wholesale price for Tungsten Heavy Alloy Ring from Hubei Fotma Machinery Co., Ltd. is $1100/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 Hubei Fotma Machinery Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Tungsten Heavy Alloy Ring?
The supplier, Hubei Fotma Machinery Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Tungsten Heavy Alloy Ring. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Tungsten Heavy Alloy Ring?
For international shipping and customs clearance, Tungsten Heavy Alloy Ring is classified under HS Code 8101.94. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Tungsten Heavy Alloy Ring from China?
To import Tungsten Heavy Alloy Ring from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Hubei Fotma Machinery Co., Ltd.. Ensure you have the necessary import licenses for Tungsten Products products in your destination country.
Is Hubei Fotma Machinery Co., Ltd. a verified supplier?
Yes, Hubei Fotma Machinery 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 Tungsten Heavy Alloy Ring?
The key specifications for Tungsten Heavy Alloy Ring supplied by Hubei Fotma Machinery Co., Ltd. include Densir 1/2/3/4 (Density grades: 16.85, 17.65, 18.25, 18.85+ g/cm³), Tungsten (W) 90-98%, Nickel (Ni) 1.5-5%, Iron (Fe) 0.5-4.5% by weight, and Ring / Circle / Torus shape, near-net or machined finish. 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 Tungsten Heavy Alloy Ring?
Hubei Fotma Machinery Co., Ltd. offers Tungsten Heavy Alloy Ring with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Tungsten Heavy Alloy Ring the most?
Tungsten Heavy Alloy Ring is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Hubei Fotma Machinery Co., Ltd. through our platform.
What certifications does this Tungsten Heavy Alloy Ring supplier hold?
Hubei Fotma Machinery Co., Ltd. maintains international quality certifications. These ensure that the Tungsten Heavy Alloy Ring meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Tungsten Heavy Alloy Ring on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Hubei Fotma Machinery 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 Hubei Fotma Machinery Co., Ltd..
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