What is the minimum order quantity?

The minimum order quantity is 1 unit.

What are the lead times for production?

The average lead time is one month for both peak and off-peak seasons.

Dia4mm Density 18g/Cc Tungsten Heavy Ball

Name: Dia4mm Density 18g/Cc Tungsten Heavy Ball
Brand: Mudanjiang North Alloy Tools Co., Ltd.
SKU: 2089973362

Heilongjiang, ChinaMudanjiang North Alloy Tools Co., Ltd.

US$15.00-100.00

10 kg

Sample price:US$45.00/kg.Request sample

Product profile

Customization

Available

Application

Aviation, Electronics, Industrial, Medical, Chemical, Alloy

Standard

ASTM

Model NO.

dia4mm

Purity

85-97%

Alloy

Shape

Round

Type

Balls

Density

17-18.5g/Cc

Surface

Polish

Hardness

22-32HRC

Uts

≥750MPa

Elongation

≥18%

Transport Package

Packing in Wooden Cases or Barrels

Specification

dia3mm ~ 10mm

Trademark

Packing in wooden cases or barrels

Origin

Mudanjiang City, China

HS Code

8101999000

Production Capacity

100 Tons/Month

Key features

High Density Range: Density available from 17.0 to 18.50 g/cm3 for compact heavy parts.

Wide Diameter Options: Spheres manufactured from 1.0mm to 200mm diameter to fit various needs.

Multiple Alloy Compositions: Available in W-Ni-Fe, W-Ni-Cu, and W-Ni-Cu-Fe with 85-97% Tungsten content.

Customizable Surface Finish: Surface options include Sinter state and Grind state for specific applications.

Versatile Industrial Applications: Ideal for aviation, electronics, medical, chemical, and armor-piercing uses.

ASTM Standard Compliance: Products meet ASTM B 777-15 standards for quality and performance.

Full Customization Service: Supports full customization, minor customization, and customization from designs.

High Hardness and Strength: Hardness up to 35 HRC and Ultimate Tensile Strength up to 758 MPa.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceR&D CapabilitiesManagement Certification

Mudanjiang North Alloy Tools Co., Ltd.

Heilongjiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 17 YearsNearest Port: Dalian, Tianjing, BeijingAverage Response Time: ≤2.74h

AI-Powered supplier vetting

SummaryThe supplier operates three workshops covering tungsten alloy, cemented carbide, and machining, supported by CNC, lathing, inspection, microscopy, hardness-testing, and image-measuring equipment. It offers extensive customization, ODM, and OEM services, and reports quality assurance, material traceability, complaint-handling procedures, and corrective-action procedures. However, it is not identified as a professional technical supplier, does not provide 3D software design or SDKs, reported no new products in the past year, and lacks overseas agents, branches, warehouses, and showrooms. The supplier has inventory capability, one-month peak and off-season lead times, export sales of 31%–40%, and accepts multiple trade and payment terms. It holds ISO9001-related certifications, but the manufacturing relationship with associated subcontractors lacks valid contracts. Financial records are referenced for 2020–2022, though the provided information does not establish financial strength.

Supplier typeThe supplier is explicitly not classified as a professional technical supplier. Its stated operations include sales, supply, inspection, international trade, and three workshops for tungsten alloy, cemented carbide, and machining, indicating a manufacturing-oriented supplier rather than a specialized technical-service provider.

CertificationsThe supplier reports ISO9001:1994 certification in 1997, ISO9001:2000 certification in 2002, and an ISO9001:2015 certificate under its sustainable-development management information. It also reports national secondary measurement test qualification, providing explicit evidence of certification holdings.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints and corrective/preventive actions, plus quality assurance and raw-material traceability. However, it has no overseas agents or branches, no overseas warehouse or showroom, and no stated overseas-service countries, so after-sales support is evidenced mainly through internal procedures rather than international service infrastructure.

R&D capabilityThe supplier does not provide 3D software design services or an available SDK, and reports no new products during the past year. Although it offers ODM services, the explicit evidence points to limited demonstrated recent innovation and digital design capability.

Production capacityProduction capability is supported by three workshops, machining and inspection equipment, inventory capability, written finished-product inspection instructions, and reported one-month lead times in both peak and off-season periods. A significant control weakness is that the factory and associated subcontractors do not have valid contracts, while the stated qualified-supplier count is 10.

Customization capabilityThe supplier explicitly provides customization from samples and designs, full, minor, and flexible customization, and also offers ODM services. This is direct evidence of broad customization coverage, although no 3D software design service is available.

Client casesThe supplier states that it provides OEM services for popular brands and reports that exports account for 31%–40% of total sales. These are direct indicators of brand-related and international customer experience, but the slices do not identify specific customer names, projects, or verifiable case details.