What is the lead time for orders?

Peak season lead time is 1-3 months, while off-season lead time is one month.

Can you customize the brick dimensions?

Yes, other sizes beyond the common dimensions like 230x114x65 can be customized.

What is the Al2O3 content range?

The Al2O3 content ranges from 30% to 80% depending on the specific product model.

Tunnel Shape High Temperature Resistant Sleeve Bricks

Name: Refractory Bricks Spider/Sleeve/Round Tube/Tunnel Shape High Temperature Resistant Sleeve Bricks
Brand: Henan Fireramo Industrial Co., Ltd.
SKU: 1925162136

Henan, ChinaHenan Fireramo Industrial Co., Ltd.

US$220.00-880.00

10 Tons

Product specifications

Shape

Product profile

Customization

Available

Classification

High-Alumina

Feature

Good Mechanical Strength, High-Temperature Resistant

Model NO.

FLM-4386

Production Process

Sintering Method

Refractoriness (℃)

1580< Refractoriness< 1770

Shape

Brick

Al2O3

30~80%

Apparent Porosity

20%~26%

Refractoriness

Sk30, Sk32, Sk34, Sk36, Sk 38, Sk40

Cold Crushing Strength

20-70MPa

Transport Package

Export Pallet

Specification

Customized Sizes Acceptable

Trademark

Fireramo

Origin

China

HS Code

6902200000

Production Capacity

1000ton/Month

Key features

Customizable Dimensions: Other sizes beyond common dimensions can be customized to meet specific needs.

Wide Al2O3 Range: Available with Al2O3 content from 30% to 80% for various industrial applications.

High Mechanical Strength: Cold crushing strength up to 70MPa ensures durability under heavy loads.

Thermal Shock Resistance: Features small thermal expansion rate and excellent resistance to thermal shock.

Versatile Applications: Ideal for coke ovens, blast furnaces, cement kilns, glass kilns, and boiler linings.

Multiple Standards Compliance: Meets GB, ASTM, JIS, and DIN standards with third-party testing acceptance.

Established Manufacturer: Factory established in 1998 with 108,000 sqm area and 148,000 tons annual capacity.

Company profile

Henan Fireramo Industrial Co., Ltd.

Henan, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤1.21h

AI-Powered supplier vetting

SummaryHenan Fireramo Industrial Co., Ltd. is a China-based limited company operating as both a trading company and manufacturer/factory, supplying refractory bricks, refractories, castables, fire bricks, and fire mortar. It reports broad customization and ODM/OEM services, but no new products in the past year and no available SDK. The supplier states that its personnel have more than 30 years of industry experience and maintains technical cooperation relationships with refractory and steel research organizations. However, evidence of formal service-management procedures is weak: no written procedures or records were provided for supplier assessment, corrective actions, or complaint handling. The supplier has no overseas warehouse, showroom, agents, or branches, although it has participated in a 2025 offline trade exhibition. Audit information identifies CTI as the auditing organization, with a report covering January 2026 to January 2027, but the stated audit evaluation result is 0.

Supplier typeThe supplier is identified as both a trading company and manufacturer/factory, organized as a limited company in Henan, China. Its stated business scope includes refractory-material sales and related technical services, while its product scope covers refractory bricks, refractories, castables, fire mortar, and related items.

After-Sales capabilityThe supplier reports no written procedures or records for effective complaint handling, service-capability assessment, or corrective and preventive actions. It also has no overseas warehouse, showroom, agents, or branches; its stated service support is therefore limited in the provided evidence, despite accepting several quotation and payment terms and reporting a one-month lead time in both peak and off-season periods.

Customization capabilityThe supplier explicitly reports customization from samples, designs, full customization, minor customization, and flexible customization. It also states that ODM services are available, providing direct evidence of broad customization support.

Client casesThe supplier reports providing OEM services for well-known brands and describes technical cooperation with Luoyang Institute of Refractories Research Co., Ltd., an Iron and Steel Research Institute, and Chongqing Iron and Steel Co., Ltd. These statements indicate named business or cooperation references, but no detailed customer projects, order results, or independently verified case outcomes are provided.