How long is the delivery time?

Delivery time depends on the order quantity; peak season lead time is one month, off-season is within 15 workdays.

How do you ensure product quality?

Products undergo strict inspections before shipment, and we have ISO9001 certification and test reports.

How are quality problems handled?

If products do not match confirmed samples or have quality issues, we will provide compensation.

What is the service life of the bricks?

Service life varies depending on the brick type and your specific usage conditions and methods.

What certifications does your company have?

We hold ISO9001 and Test Report certifications, and can apply for other necessary certifications.

Jm 30 Fire-Resistant Heat Insulating Sillimanite Brick Mullite Insulation Brick

Name: Jm 30 Fire-Resistant Heat Insulating Sillimanite Brick Mullite Insulation Brick
Brand: ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED
SKU: 1959262145

Henan, ChinaZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED

US$390.00

2-49 Tons

US$320.00

50+ Tons

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 Refractory 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

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 matter ignition increases porosity for excellent thermal insulation and low thermal conductivity.

Excellent Thermal Shock Resistance: Fused mullite variant offers superior thermal shock resistance compared to sintered products.

High Mechanical Strength: Cold compressive strength ranges from 70 to 260 MPa ensuring durability under load.

Customizable OEM/ODM: We accept OEM and ODM services, allowing customization from samples or designs.

Wide Industrial Application: Ideal for glass furnaces, steel converters, blast furnace hot blast stoves, and sintering kilns.

Certified Quality Assurance: ISO9001 certified with strict pre-shipment inspections to guarantee product quality.

Low Bulk Density: Lightweight design with bulk density from 0.55 to 1.25 g/cm3 for energy saving.

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: ≤1.08h

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.