Do these parameters apply to every specific SKU?

The parameter set may be used as a material baseline for pure-BN forms, but it does not guarantee the dimensions, strength, anisotropy, machining tolerance, service life, or operating performance of every SKU. Chemshine must confirm the final design from drawings, samples, and service conditions.

Heating Element Ceramic Tube Insulation Boron Nitride Protection Tube

Name: Heating Element Ceramic Tube Insulation Boron Nitride Protection Tube
Brand: SICHUAN CHEMSHINE CARBON FIBER MATERIALS CO.,LTD
SKU: 2326476565

Sichuan, ChinaSICHUAN CHEMSHINE CARBON FIBER MATERIALS CO.,LTD

US$15.00

10 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Application

Heating

Color

White

Model NO.

A-PT-03

Material

Shape

Cylindrical

Bn Content

99.6% (Typical Brochure Value)

Density

>2.0 G/Cm³

Flexural Strength

35 MPa

Thermal Expansion Coefficient

-1 to 2.5×10^-6/K (25 to 1200°C)

Thermal Conductivity

50 W/M·K (at Room Temperature)

Maximum Service Temperature

Air 900°C; Vacuum 2100°C; Inert Atmosphere 2300°C

Room-Temperature Resistivity

>10^14 ω·Cm

Key Dimensions / Machining

Custom Dimensions and Geometry: Confirm by Drawing

Transport Package

Hard Wood Box

Specification

1200*400*400

Origin

China

Production Capacity

5000pieces

Key features

High-temperature resistance supports long-term protection of thermocouples and furnace components.

High-temperature insulation helps reduce conductive interference around protected components.

Low thermal expansion helps maintain tube dimensions during temperature changes.

Chemical stability suits vacuum and atmosphere furnace interiors.

Suitable for thermocouple protection, electrode protection, and heating-element isolation.

Available as straight, thick-wall, stepped, and flanged tubes.

Threaded tubes, perforated tubes, and guide connectors can be machined to drawing.

Custom fabrication is available from drawings, samples, and assembly dimensions.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceSelf-branded

SICHUAN CHEMSHINE CARBON FIBER MATERIALS CO.,LTD

Sichuan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Full Customization, Flexible customization, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai Port CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW

About Our Factory & Business Background

AddressYanhuasi Industrial Park, Anju Town, Anju District, Suining, Sichuan, China

Plant Area10078 square meters

Number of Employees37

Registered Capital10,000,000 RMB

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Square Meter

Supply Chain Partners8

Our Production Capability & Technical Expertise

Main ProductsCarbon Felt, Graphite Felt, Carbon Carbon Composite, CFC

Production Lines2

Production MachinesNeedle-punched Felt Production Line, Carbonization Furnace, Pre-oxidation Equipment, High-Temperature Graphitization Furnace, Press Machine

QA/QC inspectors2 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers5 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2008-06-30

Main MarketsSoutheast Asia/ Mideast

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Cooperated with Fortune 500No

Product Q&A

Q:What is this product?

Chemshine Boron Nitride Protection Tubes / Sleeves / Connection Tubes is a pure BN product based on high-purity hexagonal boron nitride ceramics for thermocouple protection, electrode protection, and high-temperature insulation.

Q:What are the main applications?

It is mainly intended for thermocouple protection, electrode protection, and high-temperature insulation. Final compatibility should be confirmed against temperature, atmosphere, media, load, and service cycle.

Q:What shapes or specifications are available?

The planned variants include Thermocouple Protection, Electrode Protection, Heating Element, Straight Connection, Threaded Stepped. Key dimensions, holes, slots, steps, threads, and assembly features can be reviewed from drawings or samples.

Q:What temperature can the product withstand?

Typical values in the original pure-BN product manual are approximately 900 in air, 2100 in vacuum, and 2300 in inert atmospheres. These are material baselines, not guaranteed temperatures for every specific part.

Q:Can the product be customized to drawings or samples?

Customization to drawings, samples, and non-standard dimensions can be evaluated. Please provide material requirements, service temperature, atmosphere, contact media, load, key dimensions, and expected service life.