How do you guarantee quality?

For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.

Does your supply samples?

Yes, we can supply samples for free, and the freight will be undertaken by clients.

Factory Directly Refractory Mullite Thermal Insulation Brick K23 K26 K28 Insulating Fire Bricks

Name: Factory Directly Refractory Mullite Thermal Insulation Brick K23 K26 K28 Insulating Fire Bricks
Brand: ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
SKU: 2042302285

Henan, ChinaZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

US$0.50-1.00

500 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Classification

High-Alumina

Feature

Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Light Weight, Low Thermal Conductivity, Long Time Materials

Model NO.

JM23 JM26 JM28 JM30 JM32

Production Process

Sintering Method

Refractoriness (℃)

1770< Refractoriness< 2000

Shape

Brick

Product Name

Mullite Insulation Bircks

Cold Compressive Strength

1.2-2.5 MPa

Bulk Density

0.55-1.03 g/cm3

Fe2o3

Max 1.0%

Softening Temperature Under Load

More Than 1420

Apparent Porosity (%)

More Than 62%

Usage

Glass Furnace, Steel Converter .etc

Price

Factory Outlets

Keyword

Light Weight Insulation Mullite Bricks Sta

Samples

Provide

Keyword 1

Insulation Brick

Type

Refractory Material

Material

Mullite

Transport Package

Wooden Box

Specification

Customizable

Trademark

RSNC

Origin

China

HS Code

6902200000

Production Capacity

10000t/Year

Key features

Light Weight & Insulation: Low bulk density (0.55-1.25 g/cm3) and low thermal conductivity for energy saving.

High Mechanical Strength: Cold crushing strength ranges from 1.2 to 3.5 MPa with good thermal shock resistance.

Customization Available: Custom shapes and designs available based on samples or client drawings.

Wide Application Range: Suitable for metallurgy, chemical, glass furnaces, and incineration systems.

Long Service Life: Durable performance with low thermal expansion and high integrity with furnace lining.

Free Samples Provided: Samples available free of charge, with freight cost covered by the client.

ISO & CE Certified: Manufactured under ISO9001:2015, ISO45001:2018, ISO14001, and CE standards.

Company profile

Years of Export ExperienceProduct Certification

ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

Henan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.26h

AI-Powered supplier vetting

SummaryThe supplier is a professional refractory-material and kiln-engineering supplier with capabilities covering shaped and unshaped refractory materials, castables, refractory cement, wear-resistant ceramics, graphite electrodes, kiln equipment, and related engineering services. It provides 3D design, sample/design-based customization, ODM, and OEM services, but reported no new products during the past year and has no SDK. Production information indicates two production lines and stated annual capacities including 100,000 tons of refractory bricks, 30,000 tons of refractory castable, 30,000 tons of refractory cement, and 50,000 tons of another refractory castable category. Quality and management certifications include CE, ISO9001:2015, ISO45001:2018, and ISO14001. Service procedures, complaint handling, corrective actions, and finished-product inspection are documented and followed. However, the supplier lacks overseas agents, branches, warehouses, and showrooms, and has no valid manufacturing-capacity...

Supplier typeThe supplier explicitly identifies as a professional technical supplier and operates across refractory materials, castables, ceramics, graphite electrodes, kiln equipment, and kiln-related engineering services. This indicates a specialized industrial supplier rather than a general trading entity.

CertificationsThe supplier reports CE product compliance certification and ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. These stated certifications provide explicit evidence of formal quality, occupational safety, and environmental management coverage.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions, customer complaints, supplier-service assessment, and quality assurance, and it maintains in-stock service capability. However, it has no overseas warehouse, showroom, agent, or branch, so overseas physical service support is limited.

R&D capabilityThe supplier has three R&D engineers and provides 3D design, ODM, and OEM services, demonstrating design and development capability. However, it reported no new products in the past year and has no available SDK, so evidence of recent product innovation is limited.

Production capacityThe supplier operates two production lines and reports substantial annual capacities, including 100,000 tons of refractory bricks, 30,000 tons of refractory castable, 30,000 tons of refractory cement, and another 50,000-ton refractory castable category. It has defined equipment and finished-product inspection instructions, but lacks a valid contract between the factory and related subcontractor, creating a documented capacity-governance concern.

Customization capabilityThe supplier explicitly offers customization from samples and designs, 3D software design services, and ODM services. These combined capabilities directly support customized product development and manufacturing.