Drever International, world leader in heat treatment of steel

Drever International is recognized by the largest steelworks of the

world as an expert in designing and developing high e" ciency heat

treatment equipment. Each member of Drever’s multidisciplinary

team is an expert in his/her # eld. They study, conceive and develop

engineering solutions required by producers of high quality steel used in

most complex applications. As world leader in industrial furnaces, Drever

intends to remain at the forefront. It has invested in a particularly success-

ful Research and Development Department. Since 1966 and in collabora-

tion with its customers, the company has already put on the market many

innovations, now considered as industry standards.

Drever International o$ ers its customers the complete design of their ther-

mal equipment. Working in this way ensures maximum quality. Construc-

tion is achieved in accordance with Drever International’s long-standing

experience and together with its long-time consortium partners.

A presence throughout the world

Today, Drever International is a member of the SMS Siemag AG Group,

renowned for the design of integrated production lines. Its head o" ce is

located in Liège, Belgium and employs more than 170 people.

Drever International can respond to customer demands all over the

world by o$ ering the bene# ts of long-standing engineering experience,

cutting-edge technology, comprehensive knowledge of processes and a

presence in several countries. .

newer radiant tube designs, such as the

Double-P type continues to grow. With the

additional new orders, we will have more

than 8000 W-type units in operation dating

back to 2003 operating with di$ erent types

of combustion gases and providing long tube

life. These positive outcomes are the result

of our commitment to continuous design

improvement and research and development

that we will maintain Drever into the future.

I hope that you enjoy reading this new issue

of Drever Online and we remain motivated

and available to follow your projects.

Contributors to this issue: J.P. Crutzen, N. Lagios, N.R. Raach, J.M. Raick, C. Sasse, L. Sturnack, S. Vanderheyden, X Wang

Managing editor: Jean Marc Raick – DREVER INTERNATIONAL S.A. Allée des Noisetiers 15, B-4031 ANGLEUR

Layout, editing and co-ordination : www.eecom.be • Graphics and printing: www.pigment-graphic.bewww.drever.be

DREVER INTERNATIONAL S.A.

Liège Science Park

15, allée des Noisetiers

B-4031 Liège-Angleur

BELGIUM

T. +32 (0)4 366 62 62

F. +32 (0)4 367 76 78

DREVER US BRANCH

100 Sandusky Street

Pittsburgh, PA 15212

USA

T. +1 412 237 89 43

F. +1 412 535 70 25

DMT (Drever Metallurgical Technology Ltd.)

BL.2,No.500 West Jiangwan Road,

Hongkou District, Shanghai 200083

P.R. CHINA

T. +86 (0)21 65 87 50 99

F. +86 (0)21 65 87 99 95

DREVER BEIJING OFFICE

Rm. 0320 Juanshitiandi Tower

A, Jia No.50-1 Wangjing Xilu

Chaoyang District

Beijing 100102, P. R. China

T. +86 (0) 10 5907 7650

F. +86 (0) 10 5907 7649

Product Grand Ceremony for the Start-Up of 600,000 t/y

Annealing and Pickling Line Held at Zhenshi Group Easter

Special Steel Co., Ltd.

Customer Inauguration of a RRF pilot plant.

Largest Privately Owned Steel Producer Goes for Value

Added Cold Rolled Products.

Inside The internal organization chart of Drever has been recently

revised to consider a new distribution of responsibilities.

In addition to the delivery of new furnaces,

new technologies developed by Drever

International have been applied to existing

lines resulting in improved performances. For

example, our advanced mathematical model

has been successfully commissioned on all

new lines, but has also been implemented

on older lines, resulting in a high level

of customer satisfaction. Drever’s direct

hydrogen injection system is now supplied on

all new ultra-fast gas jet cooling systems, but

has also been applied to existing rapid cooling

installations resulting in higher cooling rates,

and a corresponding higher productivity and

signi# cantly lower electrical consumption.

The validity of our patent is now con# rmed

worldwide.

With regard to strip heating, our modern

W-type radiant tube system remains a very

cost e$ ective investment and means of

energy savings while our experience with

J. Raick,

Managing Director

If year 2010 was marked mainly by investments in Stainless Steel production facilities, year

2011 will de# nitively be labelled as a Carbon Steel year. Drever International has been

awarded eight vertical furnace orders: four galvanizing lines and four continuous annealing

lines, respectively. Within these orders, we can highlight one dual line galvanizing/annealing

line, emphasizing our leadership in this type of * exible strip processing equipment, and one

high speed tin plate annealing line in China. Most of the projects are located in Far East Asia,

China and Korea.

> From left to right. Row 1: S. Vanderheyden, F. Boulanger, L.

Sturnack, E. Bresmal, P.H. Picard. Row 2: P.Y. Halleux, G. Raymond,

J.P. Crutzen. Behind: D. Croiselet, Y. Rosen, S. Lecomte .

On business trip when photo was taken: X. Dessart, D. Martins

Most of the local portion will be performed by Drever Metallurgical Technology Shanghai

(DMT), the rest beeing managed by Drever International.

TCSS is located in Guanghan Economic Development Zone

in Western China’s Sichuan Province.

The line will reach a production capacity of 200,000 t/y of

high quality 2B Finish from 200s to 300s and 400s grades.

The internal organization chart of Drever has been recently revised to consider a new distribution of responsibilities.

First of all, Mr. Serge Vanderheyden (vanderheyden@drever.be) who

was responsible for developing business of new furnaces becomes Vice

President Sales & Marketing. The mission of Mr. Vanderheyden is to

improve the Drever approach of the furnace markets

and to understand the needs and wishes of our

customers. In his former job, Mr. Vanderheyden

was in charge of the activities on Silicon Steel

Lines, Plate Heat Treatment, CSP Tunnel Furnaces

and Tubes Annealing Furnaces.

The activities are redistributed as follows :

Mr. Pierre-Yves Halleux (halleux@drever.be)

is now in charge of Silicon Steel Techno-

logy and Mr. Paul-Henri Picard (picard@

drever.be) who is already responsible

for Stainless Steel Technology takes the

responsibility of the Plate Heat Treatment

with Mr. Youri Rosen (rosen@drever.be) and

the Tubes Annealing Technology with Mr. Guy

Raymond (raymond@drever.be).

With this organization, Drever reinforces

its technical oriented strategy proposing in

priority the most reliable and e" cient solutions.

On December 2nd 2011,Guanghan Tiancheng Stainless Steel Products Co., Ltd. (TCSS) placed an order to Drever for the furnace and

cooling section of their " rst Annealing and Pickling Line for cold rolled stainless steel strip.

ISSUE 7 MAY 2012

Grand Ceremony for the Start-Up of 600,000 t/y Annealing and Pickling

Line Held at Zhenshi Group Easter Special Steel Co., Ltd.

The combined Hot and Cold Stainless Steel Annealing and Pickling Line has successfully started production in

September 2011. The line has a designed annual capacity of 600,000 tons and is more dedicated to special steel

products such as Duplex, heat-resistant and super stainless steel grades (Refer to DOL N°4). The construction

involves renowned suppliers from both international and domestic like DMS, Drever, DISA, Guild, PPH and

Aritime.

After the ceremony which was held in Jiaxing on November 8th, we had

an exclusive interview with Mr. Gu Pei Song, the Technical Leader of the

project and here are the discussions.

What is your feeling after having reached the goal

to start the production?

To manage such a big project where most of the equipments are coming

from the local market is not an easy job. It is really a huge work to coordinate

all parties and have all the equipments erected and commissioned on time.

It was tough but now we can see the result of all parties’ efforts. I would like

to express my gratitude to all the suppliers involved in this project.

What about the product quality?

As a privately owned stainless producer, the start up of this line has a big

influence in China. Immediately after the coming out of the first coil, I got

the congratulations from many key players on the Chinese steel market.

At the beginning of the production, we reached the quality level of the

top Chinese producers and we even increased our prices on the market

by 300CNY/ton. This is really a miracle to reach such a quality level after

only a few weeks of production. There are still some tunings to be done

but we are gradually stepping up to higher grades and we are already

able to process 2205 material which is produced only by very few Chinese

producers.

How do you explain this success?

From the beginning of the project, our management realized the

importance of the technology and the use of top quality talents. We also

invested a lot in research and development to be able to produce these

special grades. After this success, I still believe that Drever was the best

choice and is the best furnace supplier. Even with the young operators

team, we reached the quality and the productivity of the best steel

producers in China. It is really out of my expectation that everything

started so smoothly.

What do you think about the ceramic " ber furnace

insulation?

Fiber insulation proves it is indeed an ideal solution for APL furnace. I had

experience before with many brick wall furnaces and operating with fiber

lining is quite different. It has the benefits of fast responding and better

flexibility. Besides the erection time was greatly reduced.

> Signature of ETL, Tin-CAL and CGL

Largest Privately Owned Steel Producer Goes for Value Added Cold Rolled Products.

Zhangjiagang Yangzi River Cold Rolling Co., Ltd., a newly founded subsidiary of Jiangsu Shagang Group has o$ cially launched 1420

mm cold rolling project on December 8th,2011, symbolizing the implementation of the group’s developing strategy, to optimize products

structure, further extend business area and emphasize on value added cold rolled strip production.

Inauguration of a pilot plant for a Roll Regenerative Furnace :

an achievement of a successfull collaboration between Drever and IVK.

Headquartered in Yangtze River delta’s Zhangjiagang City Shagang Group

is the largest private steel enterprise in China. Once a small steel work

founded in 1975 Shagang is now among top 5 gigantic Chinese steel

complexes with annual output of 31 million tons. Their products include

heavy plate, hot rolled coil, bar, high speed wire & rod, stainless hot and

cold rolled strips. The techno-economic level of Shagang Group remains

at the highest in the industry. In 2006 Drever International built a large

production stainless HAPL in its joint-venture ZPSS.

The new 2.6 million t/y cold rolling plant will cover mostly valued added

products on the market such as tin-plate, cold rolled coil, galvanized and

galvalumed strip as well as NGO silicon steel sheet. The total investment

is about 4.3 billion RMB and the project construction expects to complete

in 2 years. On October 29th, a plain signing ceremony was held between

Shagang Group and members of SMS Siemag Group for the three major

processing lines of the cold rolling mill.

Thermal process engineering for electrical steel strip.

ArcelorMittal orders Drever furnace for annealing and coating line.

With a new annealing and coating line, ArcelorMittal St-Chély d`Apcher, France, is drastically increasing its production capacity of high-

grade non-grain-oriented electrical steel strip (NGO). The order to supply the horizontal furnace for the new line was awarded to Drever

International on 13 May 2011. The line is scheduled to be commissioned already in December 2012.

Non-Grain-Oriented Electrical Steel Strip

Due to its electrical and magnetic properties, non-grain-oriented

electrical steel strip (also referred to as silicon steel strip) is predominantly

used in electrical engineering for the manufacture of cores for electrical

machines. Since the orientation of the ferrite grains (texture) is randomly

distributed, the material has largely isotropic mechanical and magnetic

properties and is used chiefly in rotary machines with alternating field

orientation. The material produced on the new line can also be used in

hybrid or full electrical vehicles.

Annealing and Coating Line

In the annealing and

coating line, the internal

microstructure of the 0.18 to

1.5 mm thick strip is adjusted

during the annealing process.

The material, of a width

between 800 and 1,350 mm,

is then provided with an

insulating layer depending on

requirements. The new line

will be the third annealing

and coating line in the

ArcelorMittal works at St-

Chély d`Apcher.

> Fig. 2: The strip is cooled down in a controlled manner in the cooling tube section> Fig. 1: Horizontal furnace in an annealing and coating line for NGO electrical sheet

Horizontal Annealing Furnace

In the horizontal annealing furnace the strip is heated > 1000°C, with the

thermal energy being introduced by means of inductors and electrical

heating elements. The furnace atmosphere comprises a nitrogen-

hydrogen mix.. This is a new ACL furnace that can be operated with a very

high hydrogen content This reducing atmosphere enables a particularly

oxide-free and clean strip surface to be achieved, which is important for a

high-quality material grade.

Furthermore, a careful and slow cooling of the material is important

for the microstructure. For this reason, the strip is first cooled down at

very accurate cooling rate in the slow-cooling section and then in the

quick-cooling section. A particular feature is the heat-recovery system in

the cooling section, which makes it possible to utilize the heat at other

locations in the works. The remaining heat, though, is also intended for

other purposes, for example for heating the local swimming pool by

means of distance heating.

> Earlier this year, representatives of Regional Authorities and SMS Siemag A.G. took part in the inauguration ceremony of a pilot plant for a Roll Regenerative Furnace

in the von Karman Institute for Fluid Dynamics. Drever International S.A. collaborates with this Research Center for several other research projects, under the leadership

of Dr. Michel Renard, R&D Manager of Drever, and with " nancial support of the local governement.

> Mr. Gu Pei Song