What is the minimum order quantity (MOQ)?

The minimum order quantity is 5 pieces for this product.

What are the key properties of Silicon Nitride Ceramic?

It features high hardness, wear resistance, lubricity, high-temperature antioxidant properties, and resistance to thermal shock and corrosion from non-ferrous metal melts.

High Hardness Fine Polished Octagon Silicon Nitride Lump Si3n4 Ceramic Block

Name: High Hardness Fine Polished Octagon Silicon Nitride Lump Si3n4 Ceramic Block
Brand: Lianyungang Highborn Technology Co., Ltd.
SKU: 871919135

Jiangsu, ChinaLianyungang Highborn Technology Co., Ltd.

US$20.00

2-9 Pieces

US$16.00

10-99 Pieces

US$12.00

100+ Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Standard

RoHS

Application

Metallurgical Machinery, Industry Ceramic

Model NO.

HKCA31

Material

Silicon Nitride

Type

Silicon Nitride Block

Name

Silicon Nitride Ceramic Block

Size

Customized

Appearance

Neat

Surface

Smooth

Property

High Wear Resistance

Advantage

Long Working Life

Certificate

RoHS

MOQ

Density

>3.15g/cm3

Flexural Strength

650MPa

Sintered Way

GPS/ Rb / HP

Hardness

2300~2700

Shape

Hexagon or Customized

Transport Package

Safe Package

Specification

custom

Trademark

OEM

Origin

China

Production Capacity

20000piece Per Month

Key features

High Hardness & Wear Resistance: Hardness 2300~2700 HV, flexural strength up to 850MPa for long working life.

Corrosion & Oxidation Resistant: Non-wetting to aluminum melt, excellent antioxidant properties at high temps.

Customizable Size & Shape: Available in Hexagon or Customized shapes with customized size options.

Certified Quality Standards: Passed RoHS, CE, MSDS tests and ISO9001 authentication.

Professional OEM/ODM Service: Supports full customization from samples, designs, and minor adjustments.

Safe Packaging & Delivery: Multi-layer packing with English instructions; supports air, sea, and courier.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Lianyungang Highborn Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 years CertifiedNearest Port: Lianyungang PortAverage Response Time: ≤4.20h

AI-Powered supplier vetting

SummaryLianyungang Highborn Technology Co., Ltd. is identified as a Chinese manufacturer/factory and limited company in Lianyungang, Jiangsu. It reports broad customization and OEM/ODM capabilities, documented inspection, service assessment, corrective-action, and complaint-handling procedures, as well as 15 years of export experience and exports representing 71%–90% of sales. Production information includes two production lines, 6–10 quality-control staff, and stated output across ceramic and quartz-related products. However, the supplier reports no overseas warehouse, showroom, agents or branches, or offline trade-show participation. Innovation evidence is limited because no new products were reported in the past year and no SDK is available. No certification holdings or customer case details are provided.

After-Sales capabilityThe supplier has written procedures and records for assessing service capability, corrective and preventive actions, and handling customer complaints. However, it reports no overseas warehouse, showroom, agents or branches, and no offline trade-show participation, indicating documented service processes but limited overseas service infrastructure.

R&D capabilityThe supplier offers ODM services and extensive design-based customization, but reports no new products in the past year and no available SDK. This provides evidence of design support but also a stated lack of recent product development.

Production capacityThe supplier reports two production lines, 6–10 quality-control staff, product-specific annual output data, and peak- and off-season lead times within 15 working days. These details explicitly support established production and quality-control capability.

Customization capabilityThe supplier supports customization from samples, designs, full customization, minor customization, and flexible customization, and also provides OEM and ODM services. The breadth of stated options explicitly indicates strong customization capability.

Product Q&A

Q:What products and services can you offer?

We supply Quartz Glass, optical glass, cuvettes, and various precise, porous, and refractory ceramics. We also provide ceramic thick film resistors, heating panels, ozone generators, and metal fiber felt. Custom design and manufacturing are available based on client demands.

Q:Can you offer samples before mass orders?

Yes, we offer samples to lower purchasing risk. Inventory items ship within 3 days; processed items within 15 days. Low-value items may be free (buyer pays freight). Customized products incur development costs.

Q:What certificates and test reports do you provide?

We have passed RoHS, CE, and MSDS tests, along with ISO9001 authentication. We hold 8 registered trademarks and 25 patents, and are recognized as a China High-tech Enterprise.

Q:Do you have regional agents or direct export options?

We do not authorize regional agents. Since 2008, we have direct export qualifications and have shipped to over 109 countries. Clients can purchase directly from us.

Q:What if quality fails requirements or goods are lost in transit?

We perform strict QC. If quality fails contract requirements, we reproduce or refund. For freight loss, we assist in claiming from logistics and arrange replacements.