What materials are used for these tubes?

The tubes are made of high purity ceramic alumina oxide, available in 95% and 99% purity grades.

What are the main applications for this product?

It is mainly used for thermocouple temperature measurement, liquid steel continuous temperature monitoring, and industrial furnace insulation in sectors like petrochemical, electric, and military projects.

Alumina Insulating Pipe / Tube

Name: Alumina Insulating Pipe / Tube
Brand: Hunan Rui Yue Industrial and Trade Co., Ltd.
SKU: 804654575

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

US$20.00

5-49 pcs

US$18.00

50-99 pcs

US$15.00

100+ pcs

Sample price:US$1.00/pcs.Request sample

Product profile

Customization

Available

Application

Insulators, Electrical Winding Insulation

Color

Ivory and White

Model NO.

RY-T100

Material

Ceramic

Maximum Voltage

<10KV

Thermal Rating

1800 Degree C

Shape

Pipe

Alumina Content

99.7% Alumina

Size

Customized

Feature

High Temperature Resistance

Type

Insulation Sleeve & Tube

Chemistry

Inorganic Insulation

Classification

Organic Insulating Material

Certification

ISO9001

Transport Package

Export Wooden Box

Specification

based on order quantity

Origin

China

HS Code

854710000

Production Capacity

500000PCS/Month

Key features

High Alumina Content: Available in 99% and 95% high purity alumina oxide for superior performance.

Customizable Sizes: Diameter 1-120mm and length 100-2000mm; custom shapes and sizes available.

High Mechanical Strength: Features high hardness (HRA 88) and compression strength (1300 Mpa) for durability.

Fast Delivery: Large quantity in stock ensures fast delivery and competitive pricing.

OEM/ODM Support: Welcomes customization from designs and samples for specific client needs.

Precision Surface Finish: Out surface can be ground or drilled for tight tolerance and correct installation.

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: ≤9.20h 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.