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Washers › Flat & Other Precision Washers

Pbn Pyrolytic Boron Nitride Ceramic Plain Washer Ring

Updated 2026-11-04 · Markdown version

Model no. ceramic ring

US$0.0156 – 0.066 / piece

MOQ 1 piece · Final price confirmed in your quote

Color: White;Beige
Material: Cordierite High Alumina

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Application	Refractory
Color	White;Beige
Model NO.	ceramic ring
Material	Cordierite High Alumina
Type	Ceramic Parts
Transport Package	Plywood Case
Specification	M6 National Standard
Origin	Shanghai, China
Production Capacity	50000 PCS/Year
Category	Flat & Other Precision Washers

Technical parameters

Characteristic Table of Ceramic Ring
Name	99 Porcelain	95 Porcelain	Zirconia	Talc Porcelain
Main Components	AL203>99%	AL203>95%	ZrO2>94%	MgO SiO2
Physical Property	Density	3.85	3.6	5.9	2.8
Water Absorption Rate%	0	0	0	0
Sintering Temperature ºC	1700	1670	1600	1350
Material Characteristics	Hardness HV	1700	1600	1400	800
Bending Strength 4PT	>3500	>2900	>11000	900
Compressive Strength KGF/CM2	30000	25000	25000	4000
Thermodynamic Property	Maximum Operating Temperature ºC	1600	1450	1300	1100
Thermal Expansion Coefficient 10-6/ºC 0-1000ºC	8	7.8	10	6
Heat Resistant Impact Force T(ºC)	200	220	350	200
Thermal Conductivity W/M.K	31	22	3	2.5
Electrical Characteristics	Volume Resistivity Ω.CM	>1012	>1012	>1012	>1012
Insulation Breaking Strength KT/M	18	16	15	10
Dielectric Constant 1MHZ(E)	9.2-10.5	9.0-10	12.5	5.8

Description

Pbn Pyrolytic Boron Nitride Ceramic Plain Washer Ring is part of our flat & other precision washers range (Washers).

Key details

Type: Ceramic Parts
Material: Cordierite High Alumina
Application: Refractory
Color: White;Beige

Available configurations include color and material. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 piece at US$0.0156 – 0.066 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Pbn Pyrolytic Boron Nitride Ceramic Plain Washer Ring?

The listed minimum order is 1 piece, at US$0.0156 – 0.066 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Pbn Pyrolytic Boron Nitride Ceramic Plain Washer Ring?

Type: Ceramic Parts; Material: Cordierite High Alumina; Application: Refractory; Color: White;Beige. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include color and material. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other flat & other precision washers are available?

The Flat & Other Precision Washers category lists 8,437 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/washers/flat-other-precision-washers/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$0.0156 – 0.066MOQ 1 pieceGet a quote WA