For all areas of production in the steel industry where there is a demand for refractory technology, Refratechnik Steel offer concepts and solutions which are adapted fundamentally to our customer`s individual situation. In this endeavour, we are able to draw on our extensive range of refractory products.

1. REFRATECHNIK
Lining concepts
for converter
Ihr Ziel ist unser Antrieb.
Results first.

2. 22©Refratechnik Steel GmbH
High-performance products
and intelligent lining concepts
REFRATECT® G5 Self-flowing basic high-value mass for targeted heat repair of heavily stressed converter areas.
The extremely good adhesion and spontaneous sintering make REFRATECT® G5 the perfect maintenance
mass for wear linings with MACARBON® refractory lining.
MACARBON® REFRAFLEX® bonded magnesia-carbon brick
CERAMAC® burnt magnesia brick
For all areas of production in the
steel industry where there is a
demand for refractory technology,
Refratechnik Steel offer concepts
and solutions which are adapted
fundamentally to our customer`s
individual situation.
In this endeavour, we are able to
draw on our extensive range of
refractory products.
Creating a lining concept and
selecting the refractory products
to be used are complex tasks,
requiring precise knowledge of
the relevant operating and usage
conditions. This also includes
information on the state of the
vessel, the installation conditions
at the site and the time available
for lining.
Different combinations of wear
causes affect the individual lining
areas. The main causes of wear
are thermal, chemical and/or
mechanical wear.
Let’s talk about your goals.
We will find the right way.

3. 33©Refratechnik Steel GmbH
Mouth section
Upper cone
Trunnions
Permanent lining
Bath area
Bottom
Ramming mix
Lower cone
Bottom purging area
Scrap impact
Tap hole
Tapping area
Ramming mix
Chemical analysis of the primary
raw materials
Bulk density max. application
temperature
Processing
Quality MgO Al2O3 Fe2O3 C
% % % % g/cm3
°C
REFRARAM® G5 97.0 0.30 0.6 ≥4 2.70 1800 ramming
REFRARAM® G5F 97.0 0.30 0.5 ≥4 2.75 1800 ramming
REFRAJET® K 90.0 0.60 0.6 2.30 1700 gunning
REFRATECT® G5-V1 95.0 2.00 1.0 ≥9 1.80 1800 dumping
Unshaped products

4. 44©Refratechnik Steel GmbH
Mouth section
CERAMAC® 95 95.0 0.9 3.00 16.00 84
CERAMAC® 98 97.5 0.6 3.10 14.00 87
MACARBON® H 9605 F 96.0 0.23 1.0 ≥5 2.2 3.10 / 3.00 2.50 / 9.00 65 / 30
MACARBON® H 9610 F 96.0 0.23 1.0 ≥10 2.2 3.05 / 3.00 2.50 / 10.00 45 / 25
Permanent lining
CERAMAC® 90 90.0 1.0 2.90 16.00 55
CERAMAC® 92 92.0 0.9 2.95 17.00 75
CERAMAC® 95 95.0 0.9 3.00 16.00 84
Upper cone
MACARBON® H 9710 F2 97.0 0.18 0.8 ≥10 2.4 3.00 / 2.95 3.00 / 9.00 50 / 25
MACARBON® H 9710 F 97.0 0.18 0.8 ≥10 2.4 3.05 / 3.00 2.50 / 9.00 50 / 25
Bottom
MACARBON® H 9710 F 97.0 0.18 0.8 ≥10 2.4 3.05 / 3.00 2.50 / 9.00 50 / 25
MACARBON® H 9810 S4 97.7 0.10 0.6 ≥10 2.5 3.07 / 3.02 2.50 / 9.00 50 / 25
MACARBON® H 9910 S4 98.0 0.09 0.5 ≥10 2.5 3.09 / 3.05 2.00 / 8.00 55 / 30
Scrap impact
MACARBON® H 9810 S4-E* 97.7 0.10 0.6 ≥10 2.5 3.07 / 3.02 2.50 / 9.00 50 / 25
MACARBON® H 9910 S4-E* 98.0 0.09 0.5 ≥10 2.5 3.08 / 3.04 2.00 / 8.50 50 / 25
Bath area
MACARBON® H 9710 F 97.0 0.18 0.8 ≥10 2.4 3.05 / 3.00 2.50 / 9.00 50 / 25
MACARBON® H 9810 S4 97.7 0.10 0.6 ≥10 2.5 3.07 / 3.02 2.50 / 9.00 50 / 25
MACARBON® H 9815 S4 97.7 0.10 0.6 ≥15 2.5 3.00 / 2.97 2.50 / 9.00 35 / 20
Trunnions
MACARBON® H 9815 S4 97.7 0.10 0.6 ≥15 2.5 3.00 / 2.97 2.50 / 9.00 35 / 20
MACARBON® H 9915 S4 98.0 0.09 0.5 ≥15 2.5 3.00 / 2.97 2.60 / 8.50 35 / 20
Tapping area
MACARBON® H 9810 S4 97.7 0.10 0.6 ≥10 2.5 3.07 / 3.02 2.50 / 9.00 50 / 25
Bottom purging area
MACARBON® H 9810 AS4 97.7 0.10 0.6 ≥10 2.5 3.09 / 3.02 2.50 / 8.50 50 / 30
MACARBON® H 9815 AS4 97.7 0.10 0.6 ≥15 2.5 3.02 / 2.97 2.10 / 8.00 40 / 25
MACARBON® H 9910 AS4 98.0 0.09 0.5 ≥10 2.5 3.08 / 3.00 2.20 / 8.50 50 / 30
MACARBON® H 9915 AS4 98.0 0.09 0.5 ≥15 2.5 3.03 / 2.98 1.90 / 7.50 40 / 25
Tap hole
MACARBON® H 9812 TH 97.7 0.10 0.6 ≥12 2.5 3.00 / 2.97 2.30 / 8.50 40 / 30
Shaped products
Lower cone
MACARBON® H 9610 F 96.0 0.23 1.0 ≥10 2.2 3.05 / 3.00 2.50 / 10.00 45 / 25
MACARBON® H 9710 F2 97.0 0.18 0.8 ≥10 2.4 3.00 / 2.95 3.00 / 9.00 50 / 25
MACARBON® H 9710 F 97.0 0.18 0.8 ≥10 2.4 3.05 / 3.00 2.50 / 9.00 50 / 25
Chemical analysis of the primary
raw materials
Bulk density Apparent
porosity
Cold crushing
strength
Quality MgO Al2O3 Fe2O3 C CaO/SiO2
- Ratio
Delivered cond./
coked by
ASTM C 831
Delivered cond./
coked by
ASTM C 831
Delivered cond./
coked by
ASTM C 831
% % % % g/cm3
Vol. % N/mm2

5. 55©Refratechnik Steel GmbH
Refratechnik Steel GmbH is a
member of the Refratechnik Group.
Based on a solid foundation 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
The Refratechnik Group is certified according to:
ISO 9001 – Quality management systems, and
ISO 14001 – Environmental management systems.
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.
Let´s talk about your goals.
We will find the right way.

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
St1-031-9/2011St1-031-9/2011