Manufacture of refractory products and foundry auxiliaries for steelworks, foundries and the ESR process

ISOMAG GmbH

Kraubath an der Mur (production) · Hart bei Graz (headquarters) · Leoben-Donawitz (former founding site until 2014)New on Amplifa

1987Founded

3Sites

1.3 – 1.7 kg/dm³Bulk density AKF

approx. 20 kg/t of steelAKF consumption (cold start)

About ISOMAG

ISOMAG GmbH specialises in the development, production, distribution and trading of refractory products and foundry auxiliaries. Founded in 1987, the company supplies the steel industry as well as foundries in the heavy and light metal sectors. The product range includes synthetic ladle slags (SYNTOP), slide gate filling sand (SFS), insulating covering agents for ladle and tundish (MAGNOLIGHT POWDER), exothermic covering agents and covering plates for ingot casting (ISO EX 26, EXOPLATE), highly exothermic anti-piping powder (THERMO D3) as well as prefused slags for the electroslag remelting process (AKF based on alumina, lime and fluorspar). In addition to manufacturing, ISOMAG offers the optimisation of metallurgical processes and tailor-made concept development in the refractory and foundry sectors, including individual slag compositions and small quantities for trial purposes. The production facility has been located in Kraubath an der Mur since 2014, with the company headquarters in Hart bei Graz.

Site: Hart bei Graz
Processes: Manufacture of synthetic ladle slags (SYNTOP), Manufacture of slide gate filling sand for the ladle (SFS), Manufacture of insulating covering agents for ladle and tundish (MAGNOLIGHT POWDER), Manufacture of exothermic covering agents for ingot casting (ISO EX 26), Manufacture of exothermic covering plates for ingot casting (EXOPLATE), Manufacture of highly exothermic anti-piping powders for ingot casting (THERMO D3), Manufacture of prefused slags for the ESR process (AKF), Optimisation of metallurgical processes, tailor-made problem solutions and
Materials: Alumina (Al2O3), Lime (CaO), Fluorspar (CaF2), Olivine, Alumina, Lime, Fluorspar
Certificates: ISO 9001:2015, ISO 9001
Founded: 1987
Industries: Steel industry, Foundries in the heavy metal sector, Foundries in the light metal sector, Foundries in the heavy and light metal sector

01
Raw material selection (alumina, lime, fluorspar, olivine)
02
Development of individual slag compositions
03
Production of the auxiliaries in Kraubath
04
Quality inspection according to ISO 9001
05
Distribution to steelworks and foundries
06
Process optimisation at the customer

Materials and Raw Materials

Al2O3

Alumina

Main component of the prefused ESR slags (AKF).

CaO

Lime

Main component of the AKF slag composition in the C-A-F phase diagram.

CaF2

Fluorspar

Main component of the AKF slags and of the electrical conductivity adjustment.

Olivin

Olivine

Raw material used, among others from nearby olivine-rich sources in cooperation with Magnolithe GmbH.

Sites

Kraubath an der Mur

Production facility

Lot size: Small quantities for trial purposes up to series quantities
Materials: Synthetic slags, filling masses, covering agents

Hart bei Graz

Company headquarters and administration

Leoben-Donawitz

Former founding and production site (until 2014)

Products

**SYNTOP – synthetic slags for the ladle**Secondary metallurgy · steel industry

**AKF – prefused slags for the ESR process**ESR process · steel industry

**EXOPLATE – exothermic covering plate for ingot casting**Ingot casting · foundries

**THERMO D3 – highly exothermic anti-piping powder**Ingot casting · foundries

Inside the production

ISO 9001:2015 certificate (TÜV SÜD, valid until 31.07.2026)

Industries

Steel industryFoundries in the heavy metal sectorFoundries in the light metal sectorFoundries in the heavy and light metal sector

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Manufacture of synthetic ladle slags (SYNTOP)Engineering	–	–	–	–	Synthetic slags
Manufacture of slide gate filling sand for the ladle (SFS)Engineering	–	–	–	–	Slide gate filling sand
Manufacture of insulating covering agents for ladle and tundish (MAGNOLIGHT POWDER)Engineering	–	–	–	–	Insulating covering agent
Manufacture of exothermic covering agents for ingot casting (ISO EX 26)Engineering	–	–	–	–	Exothermic covering agent
Manufacture of exothermic covering plates for ingot casting (EXOPLATE)Engineering	–	–	–	–	Exothermic covering plate
Manufacture of highly exothermic anti-piping powders for ingot casting (THERMO D3)Engineering	–	–	–	–	Anti-piping powder
Manufacture of prefused slags for the ESR process (AKF)Engineering	–	–	–	Small quantities for trial purposes	Al2O3, CaO, CaF2
Optimisation of metallurgical processes, tailor-made problem solutions andEngineering	–	–	–	–	–

Additional services

Development, production, distribution and trading of refractory products and foundry auxiliariesOptimisation of metallurgical processes, productivity, material usage andIndividual slag compositions according to customer requirementsOffer of small quantities for trial purposes

Quality

Since 1999 the company has been certified according to ISO 9001; the current certification according to ISO 9001:2015 (TÜV SÜD, no. Q1531520, valid until 31.07.2026) covers the development, production, distribution and trading of refractory products and foundry auxiliaries. A continuous improvement process covers the entire product range.

Evidence	Kraubath an der Mur
ISO 9001

History

1987
Founding in a former foundry hall on the VOEST site in Leoben-Donawitz; originally mineral fibre production, then conversion to metallurgical supplies (synthetic slags, tapping filling masses).
1999
Introduction of certification according to ISO 9001:2000.
2014
Complete relocation of the production facility to Kraubath.