Hard Granular

Hard Granular Specification

Melting Point
1600C - 1800C

Chemical Composition
Alumina, Silica, minor iron oxide

Surface Finish
Rough

Form
Granular

Water Absorption
< 2%

Usage & Applications
Used in casting, lining of refractory furnaces, and high-heat industrial processing

Hardness (%)
80 - 90%

Density
3.0 Gram per cubic centimeter(g/cm3)

Application
High-temperature furnace linings, foundries, boiler insulation, kilns, and incinerators

Purity(%)
90%+

Product Type
Hard Granular refractory material

Types of Refractories
Acidic refractory

Shape
Granular

Porosity
Low to medium

Dimensional Stability
Excellent at high temperatures

Strength
High compressive strength

Specific Gravity
2.7 - 3.2

Thermal Conductivity
Low

Color
Grayish to off-white

ISO Certification
ISO 9001:2015 certified manufacturing

Bulk Density
1500 - 1700 kg/m3

Refractoriness Under Load
> 1500C

Grain Size
2mm - 10mm

Shelf Life
12 months if stored in dry conditions

Thermal Shock Resistance
Excellent

Packaging
25 kg or 50 kg HDPE bags

pH Value
6.5 - 7.5

Moisture Content
< 1%

Resistance to Abrasion
High

Hard Granular Trade Information

Minimum Order Quantity
25 Tons

Supply Ability
1000 Tons Per Month

Delivery Time
5-7 Days

About Hard Granular

Experience the premier quality of Hard Granular-an ISO 9001:2015 certified, noble refractory material renowned for championing durability in high-temperature environments. Its scarce availability and favorable reviews among industry experts underscore its value. With a bulk density of 1500-1700 kg/m3, grain size of 2-10 mm, and high compressive strength, this granular acid refractory excels in foundries, kilns, and incinerators. Its low thermal conductivity, excellent thermal shock resistance, and purity above 90% make it the premier choice for demanding industrial applications. Packaged securely in 25 kg or 50 kg HDPE bags, it promises unmatched performance and dimensional stability even above 1500C.

Specialized Use and Application Spectrum

Hard Granular, with its remarkable thermal resistance and low porosity, is the favored choice for specific and general refractory applications. Widely used for lining high-temperature furnace interiors, incinerators, foundries, and industrial kilns, it stands out in both casting and insulation processes. The granular form and robust mechanical properties enable its versatility across various media-air, molten metals, and hot gases-making it essential in industries seeking high performance under punishing thermal fluxes.

Efficient Delivery, Reliable Supply, and Market Reach

We rate our Hard Granular on timely packing & dispatch, ensuring products are carefully loaded in 25 or 50 kg HDPE bags. With strong supply ability, we reliably meet bulk requirements, catering across key domestic markets. Flexible exchange policies and prompt logistics minimize lead time and downtime on your projects, solidifying our reputation as a trusted exporter, manufacturer, supplier, and trader in India's industrial sector.

FAQ's of Hard Granular:

Q: How does Hard Granular perform in high-temperature industrial applications?

A: Hard Granular offers excellent performance in high-temperature environments due to its high refractoriness under load (>1500C), low thermal conductivity, and superb thermal shock resistance, making it ideal for furnaces, kilns, and foundries.

Q: What are the primary benefits of using Hard Granular for furnace linings?

A: The primary benefits include high compressive strength, low moisture content (<1%), high resistance to abrasion, and dimensional stability. These features ensure extended service life and reduced maintenance in demanding thermal processes.

Q: When should Hard Granular be replaced in industrial installations?

A: With a shelf life of 12 months under dry storage, replacement is generally recommended after exposure to critical thermal damage, significant wear, or at the end of its designed operational cycle to maintain optimal performance.

Q: Where can Hard Granular be applied apart from foundries and kilns?

A: Apart from foundries and kilns, Hard Granular is suitable for use in boilers, high-temperature furnace castings, refractory linings, and industrial incinerators-any setting requiring acid-resistant, high-strength materials.

Q: What is the ordering and delivery process for Hard Granular?

A: You may place orders for Hard Granular in 25 kg or 50 kg HDPE bags. Prompt packing and dispatch ensure minimal waiting times. Bulk supply capabilities and a customer-friendly exchange system provide added convenience.