What is the hardness of the alumina ceramic?

The hardness is 3700 HRA or 2400 HRA, providing excellent wear resistance and durability.

99% Alumina High Temperature Ceramic Boat Crucible for Melting

Name: 99% Alumina High Temperature Ceramic Boat Crucible for Melting
Brand: Hunan Rui Yue Industrial and Trade Co., Ltd.
SKU: 806955955

Hunan, ChinaHunan Rui Yue Industrial and Trade Co., Ltd.

US$0.50-10.00

10 Pieces

Product profile

Customization

Available

Shape

Boat, Cylinder

Type

Crucible

Model NO.

RY-CC-0014

Max Working Temperature

1600c

Thermal Shock Resistance

180-220t

Special

Ceramic Crucible Tray

Product

Alumina Parts

Name

Machine Alumina Ceramic Crucible

Raw Material

60-99.7% Alumina Ceramic

Item

Alumina Ceramics Crucible

Refractoriness (C)

1580< Refractoriness< 1770

Feature

Long Time Materials, Instant Materials

Material

Alumina Block

Transport Package

Wooden Case or Wooden Pallet

Specification

According to customer request

Trademark

Origin

China

HS Code

6909190000

Production Capacity

10000PCS Per Month

Key features

Customization Available: Customization from designs and samples is supported for specific needs.

High Hardness: Features hardness of 3700 HRA or 2400 HRA for durability.

Versatile Applications: Suitable for electronics, vacuum devices, capacitors, and chemical engineering.

Low Minimum Order: Minimum Order Quantity is just 1 piece, ideal for testing or small batches.

Fast Lead Time: Off-season lead time is within 15 workdays for quick delivery.

High Bending Strength: Offers bending strength of 6.8-8 Mpa or 6.2-8.5 Mpa for structural integrity.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Hunan Rui Yue Industrial and Trade Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 7 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤10.42h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier manufactures products used in lighting, electrical, heating, automotive, nozzle, and insulation-related applications, with exports reported to multiple regions and 90% of total sales from exports. It operates two production lines, has 21–30 quality-control staff, and reports finished-product inspection instructions that are uniformly followed, along with quality assurance and raw-material traceability. Customization is available from customer designs and samples. However, the supplier is not identified as a professional technical supplier, does not provide 3D software design, ODM, SDK, or well-known-brand OEM services, and reported no new products in the past year. After-sales and corrective-action procedures exist but lack written records. No evidence establishes certifications, formal overseas service infrastructure, inventory capability, or customer-specific case references.

Supplier typeThe supplier manufactures components and products for lamps, electrical and heating products, nozzles, automotive parts, and insulation applications. Its reported product scope, two production lines, production equipment, and broad export markets indicate a manufacturing-oriented supplier rather than a professional technical-service supplier.

R&D capabilityThe supplier reported no new products in the past year and does not provide 3D software design, ODM, or SDK services. It does offer customization from designs and samples, but the explicit evidence indicates limited product-development and technical innovation capability.

Production capacityThe supplier operates two production lines and has extensive listed equipment, 21–30 quality-control staff, standardized finished-product inspection instructions, and reported annual output above the stated threshold. Nevertheless, it lacks continuous quantity reconciliation, an outsourcing SOP, valid contracts with related subcontractors, inventory capacity, and overseas warehouse capability; production capacity is demonstrated, while manufacturing-control depth is mixed.

Customization capabilityBoth relevant slices explicitly state customization from customer designs and customization from samples. This supports the supplier’s ability to produce customized products based on provided specifications or physical samples, although no evidence confirms 3D or software-based design support.