How long is the delivery time?

The delivery time will be determined according to the quantity of the order.

How is the product quality guaranteed?

The products will be strictly inspected before shipment, so the quality could be guaranteed.

How are quality problems solved?

If the products are not confirmed to customer samples or have quality problems, our company will be responsible to make compensation for it.

What is the service life of your bricks?

The service life of different bricks is unlike. It also depends on your using condition and method.

What certifications does your company have?

ISO9001 and Test Report, also we could apply other necessary certification.

High Temperature Furnace Heat Insulation Brick Lightweight Mullite Bricks K23 K26 Insulating Fire Brick

Name: High Temperature Furnace Heat Insulation Brick Lightweight Mullite Bricks K23 K26 Insulating Fire Brick
Brand: ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
SKU: 1959253685

Henan, ChinaZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

US$300.00-500.00

1 Ton

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Feature

Long Time Materials

Refractoriness (℃)

1580< Refractoriness< 1770

Model NO.

JM23 JM26 JM28 JM30 JM32

Shape

Brick

Product Name

Mullite Insulation Bircks

Cold Compressive Strength

1.2-2.5 MPa

Bulk Density

0.55-1.03 g/cm3

Keyword

Heat Insulation Brick

Softening Temperature Under Load

More Than 1420

Apparent Porosity (%)

More Than 62%

Usage

Hot Blast Furnace, Blast Furnace, Boiler

Price

Factory Outlets

Samples

Provide

Certificate

ISO, CE

Type

Refractory Material

Material

Mullite

Transport Package

Wooden Box

Specification

Customizable

Trademark

RSNC

Origin

China

HS Code

6902200000

Production Capacity

10000t/Year

Key features

High Porosity Insulation: Organic ignition loss increases porosity for superior thermal insulation and energy saving.

Excellent Thermal Shock Resistance: Fused mullite variant offers larger crystallization and better thermal shock resistance than sintered.

High Mechanical Strength: Compressive strength ranges from 70 to 260 MPa, ensuring durability in high-temperature environments.

Wide Application Range: Suitable for hot blast stoves, glass furnaces, sintering kilns, and petroleum cracking systems.

OEM/ODM Customization: Accepts OEM orders and provides customization from samples or designs to meet specific needs.

Certified Quality Assurance: ISO9001, ISO45001, ISO14001 certified with strict pre-shipment inspections and compensation policy.

Long Service Life: Designed for long-term use in industrial kilns, reducing replacement frequency and maintenance costs.

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: ≤1.93h

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.