Unshaped / Monolithics

Monolithics that install and repair where bricks cannot.

Monolithic refractories offer installation flexibility that shaped brickwork cannot always match — complex geometries, pre-cast assemblies, induction-furnace linings, permanent linings in high-wear areas and hot repairs during campaign.

KONREF's MgO monolithics line runs at 150 t/day and the alumina line at 80 t/day, blended in-house to formulations developed by our R&D department. Each family below is produced under its own KONREF brand.

The monolithic families.

Representative grades are shown below; full per-grade datasheets are in the downloadable catalogues.

Refractory Castables

KONCAST

Conventional dense casting refractories across the alumina range, for general high-temperature linings and pre-cast shapes.

Typical: 50–85% Al₂O₃ · service to 1750°C
Grades: KONCAST 50 / 60 / 70 / 80 / 85
Used in: Kiln hoods, transfer chutes, pre-cast blocks, general linings.

Low-Cement & Silicon-Carbide Castables

KONLOWCAST

Low-cement and SiC-bearing vibration castables delivering high density, strength and resistance to abrasion and alkali attack.

Typical: 30–90% Al₂O₃ · up to 60% SiC
Grades: KONLOWCAST 55A–97H · KONLOWCAST 30–80 SİC (silicon carbide)
Used in: Cement calciner and inlet chamber, burner blocks, high-abrasion zones.

Alumina-Based Casting & Vibrating Castables

KONHAL …C / LCC

Alumina-based castables (casting and vibrating grades, including steel-fibre and SiC variants) for demanding precast and field applications.

Typical: 40–95% Al₂O₃ · service to 1875°C
Grades: KONHAL 40C–95C · KONHAL 45–95 LCC · KONHAL SİC LCC · KONHAL 95 LCC Cr
Used in: Pre-cast purging-plug and tap-hole blocks, EAF delta roofs, ladle safety lining.

Gunning Castables

KONGUN

Gunning mixes for fast application and maintenance repair, including SiC-bearing grades for added wear resistance.

Typical: 30–80% Al₂O₃
Grades: KONGUN 30 / 45 / 55 / 60 / 80 · KONGUN 55 SİC 5
Used in: Maintenance gunning of kilns, ducts and preheaters; rapid lining repair.

Insulating Castables

KONISOCAST

Lightweight insulating castables for back-up and hot-face insulation, reducing shell temperatures and heat loss.

Typical: bulk density 0.8–1.3 g/cm³
Grades: KONISOCAST 25/0,8 · 30/1,0 · 30/1,2 · 35/1,3
Used in: Back-up insulation behind working linings, low-duty insulating layers.

Basic Ramming Mixes (Magnesite & Magnesite-Chrome)

YD / ND / NC · KONRAM

Dry vibration / ramming mixes from high-purity sintered magnesia and chromite for furnace bottoms and knuckle areas.

Typical: 61–96% MgO
Grades: YD 026 / 026E / 120 / 320 · ND 015 / 016 / 413 · NC 211 · KONRAM 93 / 93 ST · NB 011–112 (back ramming)
Used in: EAF and converter bottoms, knuckle ramming, back-fill ramming.

Induction-Furnace Ramming Mixes

SP / FD / REFKON

Complete induction-furnace lining range: basic and neutral magnesia / magnesia-spinel, fused & seawater magnesia, and acidic silica ramming masses.

Typical: basic, neutral/spinel and acidic linings
Grades: YD/YC 015–085 SP/SPS/SPK (spinel) · FD 020 / 120 / 413, FC 211 (fused) · REFKON-1/2/3/4 (acidic silica)
Used in: Coreless induction furnace working linings — iron and steel foundries.

Gunning & Patching / Tundish Coating Mixes

ST3 · KON TP / TS

Hot-repair gunning mixes and tundish working-lining coating and patching materials for fast turnaround.

Typical: 82–95% MgO
Grades: ST3 PSY / ST2 PS / ST3 PS / ST3 PSC / ST3 SD · KON TP (coating) · KON TS (patching)
Used in: Hot gunning repair of basic linings; tundish wear-lining spray coating and patching.

Lining Mortars

NA / YA · KON HAL …M

Jointing mortars matched to the brick range — basic (magnesite) and alumina-silicate grades, in ceramic and chemical bonds.

Typical: basic and alumina-silicate
Grades: NA 010, YA 020 / 020H / 120H / 020HD (basic) · KON HAL 36M–90M (alumina)
Used in: Jointing and bedding mortar for magnesia, magnesia-chrome and alumina brickwork.