Flexible, durable, individual. Nowadays, and apart from the actual tasks, hot metal transport vessels are sometimes used to carry out metallurgical processing steps that go far beyond the transport from blast furnace to steel plant, and for filling the converters. We have taken this into account, and for all standard lining concepts we supply bauxite, calcined or carbon-bonded andalusite and – to an increasing degree – high-grade carbon-bonded bauxite with SiC additive. And of course, refractory castables for pouring areas and repair are also included in the product range.

1. Lining concepts for hot metal transport vessels
Flexible, durable, individual.

2. High-performance products
and intelligent lining concepts
Nowadays, and apart from the ac-
tual tasks, hot metal transport ves-
sels are sometimes used to carry
out metallurgical processing steps
that go far beyond the transport
from blast furnace to steel plant,
and for filling the converters.
We have taken this into account,
and for all standard lining concepts
we supply bauxite, calcined or
carbon-bonded andalusite and – to
an increasing degree – high-grade
carbon-bonded bauxite with SiC
additive. And of course, refrac-
tory castables for pouring areas
and repair are also included in the
product range.
Practice has shown that individual
brick shapes are preferred, particu-
larly for lining torpedo ladles.
Therefore, Refratechnik has creat-
ed a wide range of molds, enabling
us to respond flexibly to customer
requirements at any time.
The combination of REFRAFLEX®
bonding with high-grade bauxite,
graphite, and SiC results in excel-
lent chemical and thermomechani-
cal strength with simultaneous
high resistance to erosion through
hot metal, making this product
ideal for use as a wear lining in hot
metal vessels.
The Refratechnik grades
­ALUCARBON® H 6305,
ALUCARBON® H 505,
ALUCARBON® H 8805-SiC, and
ALUCARBON® H 8810-SiC,
combined with the refractory
concretes
REFRACAST® ULC A-72 C/TS,
REFRACAST® LC A-55 S-10 AR/
TS, or REFRACAST® ULC B-83 for
the mouth area, have proved to
achieve outstanding service lives
in torpedo cars and hot metal
ladles, including desulphurization.
Most of our refractory concretes
are available for casting, ­gunning,
self-flowing, and shotcreting or
as prefabricated components
(REFRALINE®).
For exclusive use in torpedo cars,
the standard carbon and SiC-free
sintered products
REFRALUSIT® 63, REFRAL® S 62,
REFRAL® B 85, and KRONEX® 85
are most suitable.
For repair work, we
­recommend REFRASPECIAL®
F-66 or shotcretes such as
REFRAJET® LC A-60 AR/TS,
REFRAJET® MC F-58 R or
REFRAJET® MC F-57 R.
2©Refratechnik Steel GmbH

3. Lining concepts for torpedo ladles
with/without desulphurization
Lining concepts for hot metal transfer ladles
with/without desulphurization
Mouth:
REFRACAST® ULC A-72 C/TS
REFRACAST® LC A-55 S-10 AR/TS
REFRACAST® ULC B-83
REFRALINE® prefabricated components
Impact area:
with desulphurization:
ALUCARBON® H 8805-SiC
ALUCARBON® H 6305
ALUCARBON® H 505
without desulphurization:
ALUCARBON® H 8805-SiC
ALUCARBON® H 6305
ALUCARBON® H 505
REFRALUSIT® 63
Bath area and slag zone:
with desulphurization:
ALUCARBON® H 8810-SiC
ALUCARBON® H 8805-SiC
without desulphurization:
REFRALUSIT® 63
KRONEX® 85
REFRAL® B 85*
REFRAL® S 62*
Permanent
lining:
KRONEX® 40
* CO-resistant
Mouth:
REFRACAST® LC A-55 S-10 AR/TS
REFRACAST® ULC A-72 C/TS
REFRACAST® ULC B-83
REFRALINE® prefabricated components
Bottom:
REFRALUSIT® 63
ALUCARBON® H 6305
ALUCARBON® H 8805-SiC
REFRACAST® LC A-55 S-10 AR/TS
REFRALINE® prefabricated components
Barrel:
with desulphurization:
ALUCARBON® H 8810-SiC
ALUCARBON® H 8805-SiC
REFRACAST® LC A-55 S-10 AR/TS
REFRASELFCAST® LC A-55 S-10 AR/TS
without desulphurization:
REFRALUSIT® 63
REFRACAST® LC A-55 S-10 AR/TS
REFRASELFCAST® LC A-55 S-10 AR/TS
KRONEX® 85
REFRAL® S 62*
Permanent
lining:
KRONEX® 40
Insulation for torpedo cars and hot metal transfer ladles: REFRACAST® MW 1300
3©Refratechnik Steel GmbH

4. Technical product information
REFRAFLEX®-bonded high-alumina carbon bricks
Properties ALUCARBON® H 6305 ALUCARBON® H 505 ALUCARBON® H 8805-SiC ALUCARBON® H 8810-SiC
Raw material basis Andalusite Fused corundum Bauxite, silicon carbide Bauxite, silicon carbide
Al2O3 (% by wt.) > 62.0 > 92 > 72 > 72.0
SiO2 (% by wt.) < 40.0 < 2.5 < 25.0 < 25.0
Fe2O3 (% by wt.) < 2.5 < 2.5 < 2.5 < 2.5
SiC (% by wt.) > 9.0 > 9.0
Carbon content (% by wt.) > 4.0 > 4.0 > 4 .0 > 9.0
State 'as delivered'
Bulk density (g/cm³) > 2.72 > 3.05 > 2.90 > 2.85
Open porosity (% by volume) < 7.0 < 9.0 < 9.0 < 9.0
Cold crushing strength (N/mm²) > 50.0 > 60.0 > 40.0 > 35.0
Coked acc. to ASTM C 831
Bulk density (g/cm³) > 2.62 > 3.10 > 2.85 > 2.80
Open porosity (% by volume) < 12.0 < 12.0 < 13.0 < 13.0
Cold crushing strength (N/mm²) > 35.0 > 25.0 > 25.0 > 25.0
Castable concretes
Properties REFRACAST®
LC A-55 S-10 AR/TS
REFRACAST®
ULC A-72 C/TS
REFRACAST®
ULC B-83
REFRASELFCAST®
LC A-55 S-10 AR/TS
Processing Vibration Vibration Vibration Self-flowing
Raw material basis Andalusite Andalusite Bauxite Andalusite
Al2O3 (% by wt.) > 53.0 > 70.0 > 80.0 > 52.0
SiO2 (% by wt.) < 33.0 < 25.0 < 13.0 < 35.0
Fe2O3 (% by wt.) < 1.2 < 1.1 < 1.9 < 1.2
CaO (% by wt.) < 2.5 < 1.0 < 1.0 < 2.5
SiC (% by wt.) > 9.5 > 9.0
Max. operating temperature (°C) 1600 1700 1650 1600
nach Brand bei 1000 °C
Bulk density (g/cm³) 2.52 2.7 2.8 2.5
Cold crushing strength (N/mm²) 90 60 170 90
Maintenance & repair material
Properties REFRAJET®
LC A-60 AR/TS
REFRAJET®
MC F-57 R
REFRAJET®
MC F-58 R
REFRASPECIAL®
F-66
Processing Gunning Gunning Gunning Gunning / troweling
Raw material basis Andalusite Fireclay Alumina-rich raw materials Alumina-rich raw materials
Al2O3 (% by wt.) > 54.0 > 51.0 > 56.0 > 65.0
SiO2 (% by wt.) < 36.0 < 43.0 < 32.0 < 26.0
Fe2O3 (% by wt.) < 0.8 < 0.7 < 1.0 < 1.5
CaO (% by wt.) < 2.8 < 5.5 < 5.0 < 4.3
SiC (% by wt.) < 7.0 < 6.0
Max. operating temperature (°C) 1600 1500 1500 1600
After firing at 1000 °C
Bulk density (g/cm³) 2.35 2.25 2.35 2.3
Cold crushing strength (N/mm²) 55 60 85 25
Carbon and SiC-free fired bricks
Properties KRONEX® 40 KRONEX® 85 REFRALUSIT® 63 REFRAL® B 85 REFRAL® S 62
Raw material basis Special fireclay,
alkali-resistant
Bauxite Andalusite Bauxite Andalusite
Al2O3 (% by wt.) 38 - 43 80 - 85 59 - 63 84 62
SiO2 (% by wt.) 52 - 56 10 - 14 33 - 37 10 35
Fe2O3 (% by wt.) 1.5 1.5 1.0 2.0 1.2
Bulk density (g/cm³) 2.15 - 2.30 2.75 - 2.90 2.55 - 2.70 2.85 2.55
Open porosity (% by volume) 14 - 16 17 - 19 12 - 14 17 17
Cold crushing strength (N/mm²) 50 85 70 90 40
CO resistance - - - Class A Class A
We reserve the right to make changes in the interest of technical progress.
4©Refratechnik Steel GmbH

5. Let´s talk about your goals.
We will find the right way.
Refratechnik Steel GmbH is a
member of the Refratechnik
Group. Based on a solid foun-
dation of more than 60 years
­experience, ­Refratechnik Steel
GmbH focusses on solutions for
the iron & steel industries as well
as the ­non-ferrous and aluminium
industries, which consequently
involves ­environmental, energy,
and ­chemical aspects.
The production facilities of
­Refratechnik Steel GmbH are
located in Bendorf and Dülmen,
Germany. Furthermore production
capacities of the group facilities
in Germany, Spain and China have
been assigned. Administration
and R+D are in Düsseldorf and
Bendorf.
The Refratechnik Group is certified according to:
ISO 9001 – Quality management systems, and
ISO 14001 – Environmental management systems.
5©Refratechnik Steel GmbH

6. Refratechnik Steel GmbH
Schiessstrasse 58
40549 Düsseldorf
Germany
Phone +49 211 5858 0
Fax +49 211 5858 49
steel@refra.com
www.refra.com
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