What is the minimum order quantity?

The minimum order quantity is 1 unit.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the average lead time for delivery?

The average lead time is within 15 workdays for both peak and off-season periods.

Silicon Nitride Si3n4 Ceramic Stopper Pipe Riser Tube for Casting

Name: Silicon Nitride Si3n4 Ceramic Stopper Pipe Riser Tube for Casting
Brand: Lianyungang Highborn Technology Co., Ltd.
SKU: 1934692905

Jiangsu, ChinaLianyungang Highborn Technology Co., Ltd.

US$200.00

2-9 Pieces

US$180.00

10+ Pieces

Sample price:US$200.00/piece.Request sample

Product profile

Customization

Available

Feature

Long Time Materials

Refractoriness (℃)

1580< Refractoriness< 1770

Model NO.

HKK27

Shape

Pipe

Type

Heat-Resistant Material

Name

Silicon Nitride Ceramic Stopper Tube

Color

Black

Size

Customised

Usage

Melting

Surface Treatment

Polishing

Max. Working Temperature

1550°c

Density

3.26g/cm3

Machining Method

Grinding

Certificate

RoHS

OEM

Keywords

Silicon Nitride Ceramic Riser Tube

Material

Silicon Nitride

Breaking Tenacity

6-9 MPa M1/2

Elasticity Modulus

300-320gpa

Thermal Conductivity

15-20 W/(M.K)

Transport Package

Standard Export Cartons/Wooden Box/Tray

Specification

standard or customized

Trademark

OEM

Origin

Jiangsu, China

Production Capacity

2000/Month

Key features

Excellent Wear Resistance: High hardness (HRA 90-93) and breaking strength (700-900 MPa) for durability.

Customizable Size: Size is customized according to client requirements and designs.

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

Professional OEM/ODM: Accepts OEM orders and provides full customization from samples or designs.

Global Export Experience: Exporting to over 109 countries with professional export team since 2008.

Strict Quality Control: 100% inspection for finished products with professional QC team.

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: ≤3.97h

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, precise ceramics, porous ceramics, refractory ceramics, thick film resistors, ozone generators, and metal fiber felt. We can design and customize products according to client demands.

Q:Can you offer samples before mass order? How are they charged?

We offer samples to lower purchasing risk. Inventory items deliver within 3 days; processed items within 15 days. Low-value items may be free (freight paid by buyer). Customized products require a development cost.

Q:What test reports or certificates do you provide?

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

Q:Do you have agents in our area? Can we export directly?

We do not have authorized regional agents. Since 2008, we have direct export qualifications and have exported to over 109 countries. Clients can contact us directly for purchases.

Q:What if quality does not meet requirements or there is freight loss?

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