What types of tubes are available?

We offer thermocouple protection tubes and insulated tubes with single, double, or four holes.

Is customization available for designs?

Yes, we support customization from both designs and samples.

$Resistance Mullite Disc Refractory Corundum Mullite Plate$

Resistance Mullite Disc Refractory Corundum Mullite Plate

Name: Resistance Mullite Disc Refractory Corundum Mullite Plate
Brand: Hunan Rui Yue Industrial and Trade Co., Ltd.
SKU: 894480275

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

US$0.20-20.00

10 Pieces

Product profile

Customization

Available

Feature

Long Time Materials, Instant Materials, High Temperature

Refractoriness (℃)

1580< Refractoriness< 1770

Model NO.

RY-C566

Shape

Pipe

Surface Treatment

Polish

Firing Temperature

1550~1680degree Centigrade

Item

Alumina Pipe Lined in Steel Pipe

Raw Material

99-99.7% Alumina Ceramic

Denisty

3.6-3.9

Color

White, Pink, Light Yellow

Product

Corundum Ceramic Tubes

Type

Refractory Material

Material

Alumina Cement

Transport Package

Wooden Case or Wooden Pallet

Specification

according customer request

Trademark

Origin

China

HS Code

690919000

Production Capacity

50000PCS Per Month

Key features

High Purity Alumina: Available in 70-99.7% Al2O3 content for superior performance.

Customizable Dimensions: Outer dia. 7-120mm, Inner dia. 1-110mm, Length up to 2000mm.

Excellent Dielectric Strength: Dielectric strength ranges from 9 to 12 kv/mm for insulation.

Low Water Absorption: Water absorption is less than 0.25% for high durability.

Multiple Hole Options: Available in single, double, and four-hole insulated tube designs.

Custom Surface Treatment: Surface can be polished to meet specific application needs.

Low Thermal Conductivity: Thermal conductivity ranges from 17 to 35 W/(m.R).

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: ≤9.15h 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.