Internal information magazine, nr.1 - 05

Štore Steel has clear development aims In a period from 2005 to 2010 we enter into a new investment cycle where it is expected that we will invest into modernisation 30 millions of EUR. A period of conjuncture on steel market is the most suitable for new investments. One of the most important in ve st me nt s i s a lo ng te rm developmental solution for our rolling mill in three phases. The first phase: connection of line 800 with line 500 which will be executed in the year 2005 will enable increasing of use of billets of square 180 mm. In the second phase (new rolling stand) there will be modernised the old line 550. In the third phase which has no time determination yet we pla n a b uil din g-i n of a ne w continuous line and lengthening of our cooling bench.

Marjan Mačkošek

Steel production equipment is very pretentious and expensive and time of delivery is quite long. Due to this it is very important that we have a long term planing of development and all necessary investments. All the projects already finished in this year were designed more than one year ago. By this year's equipping of our two saws in our cold finishing plant with an automatic robot manipulator we considerably increased their capacities what is especially important because of this year's increasing demand about cut-to length spring steel. This year's building-in of a system for dimensional measuring in hot condition into our rolling line 550 allows us a direct control over dimension al toleranc es what is unavoidable for reputation of a producer of quality steel. Also our new warehouse hall is a result of our efforts to make products in accordance with the customers' requirements. After the new warehouse will be ready we will get additional space at place where the final control and packing of the material are done. It will be possible

to set up new devices for final operations on our products. Bigger interventions which request a production stop are so planed that a new equipment will be installed within 15- daily regular yearly refit. In this August we expect that the second phase of hardly expected dust cleaning plant, which requests an intervention into building of our steelwork, will be ready. For setting up of a roof dust collector we will build three additional holders. The dust collector will be installed by a special lift ordered from Italy. With this collector we will collect the remaining of dust which cannot be collected by our primary system of dust collecting executed by vacuum cleaning of wast gasses from our elect ric arc furna ce and ladle furnace. The filter system will be completed with additional chambers and with one ventilator. We will fulfil with this investment also the last requirement given by IPPC directive about the use of the best available technologies (BAT). Within our 15 - daily regular yearly refit we will execute also two bigger interventions: flame cutting of billets on continuous casting device in steelwork and an automatic arranging pocket at the end of rolling line 550. Project teams in our company prepare some projects for further development and modernising which will enable us to reach a production level of 165.000 tons of steel by the year 2010 and enlarging of our production programme with higher price level types of steel. Managing Director Marjan Mačkošek

Picture in the middle: packing of the cut bars; Picture at the bottom: folding of bars by an automatic robot manipulator;

Picture on the title page: David Sluga participating at state championship in Kisovec near Zagorje;

Joining with Austrian colleagues On April 7. and 8. 2005 was Štore Steel a host of the 164. meeting of ASMET's steel experts' commission (Stahlwerksausschuss-Sitzung). The meeting was conducted by Mr. Hei mo Jäg er (D.S c.) , Gen eral Manager of ASMET and Mr. Herbert Buhl (Eng.), President of ASMET. On the meeting participated 25 members of the Steel Experts' Commission and 7 engineers from our company. There were presented 4 projects which are being in phase of introd uction at Štore Ste el respectively at Metal Ravne as follows: Mr. Božidar Šarler - Professor, D.Sc. with his co-operators (Politehnika No va Go ri ca , Št or e St ee l) : Mode lli ng and opt imi sati on of continuous casting; Mr.Stank o Pet ovar - Grad uate Me ta ll ur g. En g. (M et al R av ne ): Oxygen blowing in ultra high power electric arc furnace; Mr.Metod Marolt - Graduate Metallurg.Eng.(Štore Steel): Modernizing of electric arc furnace; Mr.Hinko Ploštajner - Graduate Metallurg. Eng. (Štore Steel): Steel of quality 70MnVS4 for production of crack shafts; Meeting discussion after presentations confirmed us that we are on the right way and also many questions of our colleagues from Austrian steelworks showed us that they are very interested in results of our projects. The base for further development is on mutual exchange of knowledge, achievements and ideas which will be by common help presented to some adequate institutions within ASMET and wider within EU.

We and our Austrian colleagues are connected by a tradition more than 150 years old with roots from appearance of industrial plants for steel produ ction in Aus troHu ng ar ia n Mo na rc hy. B et te r business opportunities were given them by building of so called “South Railway Vienna - Trieste.” More information about history of steel production in Štore were given to the participants at showrooms of our Izobraževalni center (Education centre) where the meeting took part. The name Štore is well-known also in Austrian national history namely just ironworks Štore and Zeltwegg had produced armoured plates for Austrian navy which defeated Italian navy at well-known fight near island of Vis in the year 1866. In the second day of the meeting we heard about a terrible work accident occurred at Böhler Edelstahl. This bad news took all lustre from our joining and we all sympathized with co-workers of the victims as well as with the leading in the company. Peter Bračun Commercial Director

Affiliation of Štore Steel into commissions and committees of ASMET opened us possibilities to acquire of proper information, evaluations about our directions in the future as well as support at our efforts on world markets. I think that by that way we gain width and self-confidence needed for even faster steps towards development. Beside expert work we also found time for a pleasant joining and strengthening of friendly relations. On the pictures from above to down: participants of the meeting during their visit at ironworks museum, during the meeting, in the steelwork and in front of the steelwork building ;

Springs from Schomäcker Federnwerk available also “On-line” The biggest changes that are expected to happen in automotive industry in the future are: safety, price favourableness, an effective consumption of fuel and k i n d n e s s t o w a r d environment. To this end have already been done new constructional shapes of flat springs made from special types of spring steel. During regular visits of our buyers we have also visited company Schomäcker Federnwerk GmbH at town Melle in the north of Germany. We started to co-operate with them in the year 2001. After a humble beginning we managed to double the volume of sale of spring steel one year later. In a co-operation with this spring producer we have developed a special type of steel for a flat profile of the rolled material having almost square cross section. Springs made from such profiles are produced for the end user BPW which is well known as producer of complexes for trucks' chassis. They have wanted to reduce essentially the weight of the whole spring as well as the weights of all elements composing a truck chassis. The company Schomäcker Federnwerk will in this year celebrate 125 years of its existence. It was established in the year 1880 with the name Wagenfedernfabrik Sc hm äc ke r& Co . Toge th er wi th development of road vehicles at the beginning of the 20. century they have changed their production of springs for railway wagons into production of springs for heavy vehicles, cars and trailers.

Picture: Peter Bračun, Commercial Director of Štore Steel, Stefanie Menninghaus and Dirk C. Löchner, Managing Director of Schomäcker Federnwerk

Today is their supporting programme production of one-hand springs for the first building in but to a smaller extent they also produce parabolic and classic types of spring. Their production is modern, equipped with robots. As we cut steel bars for them to a final length they can put our products directly to their production lines.

already planed investments into our production will ensure Štore Steel enough capacities to follow all longte rm de ve lo pm en ta l ne ed s of Schomäcker Federnwerk GmbH. Miran Prezelj Sales Manager

This company is also known as the leading supplier of spare parts that means springs for the second build in. For buyers of such springs they have developed a special internet base where on-line buying is possible. Each buyer has a possibility to have a direct view into their stock where more than 3000 different types of springs are available. The offer of springs is illustrated with drawings, sizes and other data about each type of a spring. And the company guarantees that each on that way bought spring will leave them some minutes after an order. During the discussion where Mr. Dirk C. Löchner (Managing Director), Mr. Stefa n Siep elmey er (Pur chas ing Manager) and Mrs. Stefanie Menninghaus (Commercialist) had taken part some starting points for our f urther d evelopmental partnership have been defined. All

Pictures: testing of springs and springs at warehouse;

Development of steel for vehicles of the future 50CrV4 and 51CrMoV4 are standard designations of steel and we produce each of them in 30 to 50 variations to meet with technical possibilities of our buyers and to come to the optimal results together. the old ones in spite of that they have by 40% lower weight. The second way is development of spring steel with always higher tensi le stren gth (N/mm 2) and constant dynamic strength in other words: a spring should hold out the power of a load as well as different and numerous oscillations during its

Spring steel is the main product of our production programme and we have managed to develop it to such a level that we are an important producer of flat rolled profiles for production of springs for heavy vehicles and are present at practically all spring producers in Europe. Spring steel has a long tradition in production programme of Štore ironworks and it has been ever playing an important or even the main role. Spring steel for springing of light carriages and devices in mills can be found in a price list from the year 1902. This steel was packed in boxes indicated with name Styria. Mass production of spring steel started in Štore in the year 1956 when 2000 tons were produced. From that time the quantities had been growing rapidly and reached the volume of 15.000 to 30.000 tons per year till the crisis of downfall of the ex-Yugoslav market.

use. This defines the period of life time of a spring. Beside this also types of steel had been changing. Firstly there were produced silicon types of steel than silicon-manganese, silicon-chrome, chrome, chrome-vanadium and as the last chrome-molybdenum vanadium types of steel. All these types of steel are still in use but not for production of new vehicles. Two types the most frequently used today are 50CrV4 and 51CrMoV4 while all other (55Cr3, 60SiCr7, 55Si7,…) are incomparably less used and will slowly disappear.

There exist two ways to reach the minimal own weight and the maximal load capacity at development of springs. One of these ways are constructional changes of springs where we can see a development from the primary tra pez ium or l eaf spr ing s to parabolic and console springs this is a combination of one leaf spring and one air mattress. Here is a rule that the new types of springs should hold out the same loads comparing with

The efforts of the last years are directed toward high tensile strength springs. It means that we try to reach a higher level of endurance and a longer lifetime of a spring produced from the actual types of steel. This would be done by micro-alloying, by exact running of processes, higher purity of steel, lower content of hydrogen and oxygen in steel, fine grain structure, by a minimal partial decarburisation.

Among all tests and checks is fatigue test of an end product a spring the most decisive and also the most pretentious. This is a destructive method and cannot be used as an end control for springs as it is possible at loading test. For this test is typical that a spring is exposed to different loads at different frequencies. One of such cycles numbers about 7000 oscillations and one high tensile spring is acceptable if it holds out 80.000 of cycles. For other types of springs is this condition by 20 % lower. This test and data are only one of many other tests made by spring producers to check the lifetime of their products. The before mentio ned aim of reducing of weight at existent characteristics is not typical only for development of springs but also for the whole automotive industry and machine building and these are the reasons that we will take here an active part.

Jani Jurkošek Assistant of General Manager

Pictures on this page show springs made by our business partners;

Measuring of sizes in hot condition We started with searching for a suitable dimensional measuring system in the year 2000 but only in the year 2004 we finally found an adequate technical solution for measuring of sizes from our production programme. This is Limab Hot Profiler - a system of an automatic supervision of dimensions during rolling process. Štore Steel is a flexible mini steelwork specialized for deliveries of smaller series of steel. And here we see our advantages comparing with bigger steel producers also in the future. But on the other side has such orientation also a negative impact to productivity and we are continu ally forced to look for appropriate technical solutions and to mod ern ize our pro duc tio n capacities.

in cold condition. Such way of work does not enable a continuous dimensional measuring alongside the whole bar and also means a considerable physical strain for the workers. Due to size changes we lose monthly about 2500 minutes (it is about 6,5 % of all the time available in the average 27 working days) and we spend only for dimensional measuring about 1000 minutes (2,5 %).

Our rolling mill produces monthly about 250 different dimensions of round, square and flat profiles. Preparing of six stands of rolling line and measuring of the rolled bars are still executed manually. At smaller changes of dimensions it is necessary to measure a rolled bar in hot condition by templates or by a movable gauge but at bigger changes it is necessary to cut one piece of a rolled bar, cool it forcibly and measure it by a movable gauge

The majority of the comparable rolling mills in Europe has already been equipped with an automatic dimensional measuring system in hot condition . So far existing systems are mainly designed on principle of measuring of a profile's shadow and are effective mainly at measuring of round profiles but they are more or less unsuitable for producers of flat profiles.

Picture: Laser sensors throw light upon steel bars through rifts of rotating drum;

A measuring s ystem which i s su it ab le fo r o ur pr od uc ti on programme was offered by Swedish company LIMAB which produces sensors and systems for noncontactable measuring. Beside that they are active in wooden and building industry they take now also an important role in steel industry. We think that their system LIMAB HOT PROFILER is the first one which successfully executes measuring also on flat profiles. The system operates on principle of laser measuring of a rolled profile an d is co ns tr uc te d fr om a measuring unit of 18 laser sensors (through which a rolled bar moves), ventilators for cooling of the measuring unit, the main server, displays of the measured values, work stations for managing of the system and has a supervision over the production.

Picture: Measuring unit is connected with computer equipment in the cabin;

The system can be integrated into the existing computer network. The fo ll ow in g ar e it s ad va nt ag es comparing with classic system of measuring respectively with competing systems:

measurements. We expect that the system will be put into full operating use within second half of the year 2005. First impre ssion s of the employees about applicability and suitability are positive.

It executes 5 measurements of transversal profile per second what assures about 50 measurements alongside the whole bar and the responsible worker gets an im me di at e in fo rm at io n ab ou t thickness, width, non-rectangularity, ovality or about the final temperature of a rolled profile and because of this a retardatory sampling and me as ur in g of ma te ri al is no t necessary anymore; a continuous dimensional measuring enables an immediate information and a prompt action in case of a product' s discrepancy; end reports about (un)suitability of a rolled product enable a target control of material what increases flow speed of material and cold finishing; so acquired data can be recorded and statistically evaluated with the aim to improve the process continuously; it is simple to make cp/cpk cards.

A real calculation shows that this investment will we refunded in twenty months. Due to reducing of technological deadlocks in our rolling mill we will be able to produce by 1500 - 2000 tons of rolled profiles more and to increase the income acc ord ing ly. Add iti ona l pos iti ve effects will also be: lower costs of unsuitable material, higher flow speed of material at cold finishing and low er c ost s of cla ims due to dimensional deviations. Boris Kumer Rolling Mill Manager

The efficiency of the system could be estimated during our visit at Fundia in Sweden where we have seen all advantages and disadvantages of Hot Profiler. In spite of some system limitations was the estimation positive. The system was ordered in July 2004 and delivered to us at the end of December 2004. In March 2005 it was built in into technological line of rolling line 550. Soon after building in we started with trial operating and adjusting of the equipment regarding to specific requirements of our production process. We should make a special system of leading of rolled bars through the measuring device as the system was originally constructed for use on continuous rolling lines and here was firstly used on a classic rolling line. Simultaneously we continue with updating of a program part which contains developing of supporting practices for automatic data transmission from IT system into measuring device and preparing of reports about dimensions of rolled material. The system is being actually in phase of trial operating and verifying of

On the pictures from above to down: Data display, entry guide, measuring unit;

Narrow-gauge railway transport in Železarna Štore from 1948 to 1980 An idea about building and introduction of narrow-gauge transport in Železarna Štore was given by the then foreman of the “engine shed” Mr. Kalčič who employed in the ironwork in April 1947.

An exhibition about this period will be open till September 2005 at showrooms of Izobraževalni center Štore. Picture: Narrow-gauge railway line operating at location of Štore 2; All input of raw materials into the ironworks and dispatch of end products were done by a normal railway line which at railway station Štore seceded from the main line and leaded across Voglajna river to the point plate at former porter in Štore I. Across the point has being executed a normal gauge railway shunting of wagons towards the coal yard (for use of generators and boiler house) and the crap yard. The scrap yard was at that time located on a later storehouse of lubricants (near the concrete railway bridge over Voglajna). Scrap was firstly by pressing formed into packages of flat form and by a special carriage manually transported to a landing at steelwork . This manual transport was soon replaced by pair transport. Due to increasing of production and bigger volume of physical work there was also an increased need for working force. To solve this problem they started to think about building of a narrow gauge railway line, firstly for the needs of the steelwork and later for carting off of waste from the generator.

It was produced in the year 1935 at Hensch el locomo tive factor y in Kassel in Germany steam boiler No.22668. It was immediately sent to an overhaul to a railway workshop in Maribor. In the ironworks the locomotive was indicated as “IDA “, Štore No.1. In the same year there was bought also the second identical locomotive in Bor. It was produced in the year 1920 by the same producer and has a steam boiler No. 17503. Also this engine was sent to Maribor to be repaired and was named “ŠTEFKA”, Štore No.2. Soon after the purchase of the locomotives they in summer 1947 intensively started with buildi ng of the narrow- gauge railway in all plants as well as up to all outside stocking places. Firstly there was build a narrow track from the primary scrap yard up to the steelwork. The railway network was spread up to generators, rolling mill, foundry, boiling house and forward up to the west where new stock houses had been being built.

On June 30. 1947 was ”as scrap” bought the first na rrow gauge locomotive at Bor cooper mine in Serbia. It was a wet steam two-axles -so call ed “ten derk a” (ten der) locomotive for a gauge of 600 mm.

At that time there was organised a great Yugoslav youth working action for construction of railway line Šamac-Sarajevo. And this was the reason that in the ironwors they decided to build a narrow gauge

railway network by shock working. It is not an accident that the building of the narrow-gauge railway line up to the new scrap yard and stock of casting in the direction of west was called “Šamac”. This name has been kept till now and symbolises very good assiduity of workers and young people during their shock work at building of the narrowgauge railway. A reason for a decision that in the ironworks the inside transport is executed by a narrow-gauge railway was also a place narrowing in Štore I (a normal track was technically not realizable). The carting off of waste was done by road transport (pair). A fast growth of production had been re qu es ti ng mo de rn is in g of transport. A narrow-gauge locomotive “IDA” Štore No.1 was after the general repair in Maribor in February 1948 in Štore again and it was on February 28.1948 firstly heated. On the same day there was done also the first shunting and this date means also the beginning of the narrow-gauge railway transport in our ironworks. The second narrow-gauge locomotive (“ŠTEFKA”, Štore No.2) arr ive d fro m the ove rha ul in November of the same year and started operating on November 18.

Because of heavy transport needs and quick spreading of the narrow-gauge railway there were in the same year ordered another two narrow-gauge locomotives at “Đuro Đaković” factory in Slavonski Brod. Both of them were produced out of the standard programme of the producer (a threeaxle tender with a saturated- steam engine). The first one was supplied as early as on October 10. 1948 and immediately put into operation. It was named Štore No.3 steam boiler No. 622. The second one which was built only in the year 1950 was called Štore No. 4- steam boiler No. 776. It started with operating at the end of November 1950. During this time we started with building of an electric smelting furnace and all dig up ground was carried away by the narrow-gauge railway up to Lipa dump (where it is today a football ground). To this dump there were also carried away all metallurgical waste. Together with a start of operating of our electric smelting furnace in the year 1954 and due to a new location of metallurgical waste dump at actual place of Štore II had enlarged the narrow-gauge railway network to such an extent that a need for some new locomotives appeared. We must also know that it was necessary to make a revision of steam boilers and because of wearing out also a revision of running systems - on the existing engines in each three years. Such revision had usually been lasting three to four months long and without any new locomotives there would had been seriously troubled our internal transport. In September 1954 there were bought from Senovo coal mine another two narrow-gauge railway three-axle “tender” wet-steam engines. They were both produced at A.G. Wien Floridsdorf engine factory in Austria in the year 1918. The first was named Štore No.5 steam boiler No. 2566 and the second Štore No. 6 steam boiler No. 2571. They both needed to be revised. The overhaul of the steam boiler was done at “Boris Kidrič” railway vehicle workshop in Maribor but running part together with drive and armature they were all repaired at our ironworks. The engines started to operate in the year 1955. Beside six narrow-gauge railway

engines was there bought for internal transport within fireclay plant in February 1955 still one narrow gauge railway two-axle diesel engine. We purchased i t from centra l mine workshops “Arsenije Spasić” in Zaječar, Serbia. The engine was pr od uc ed in fa ct or y of di es el locomotives Ruston in England, the most probably in the year 1951. Its own weight was 4 to and there was built in a motor of power of 48 KW and three gears. Together with spreading of narrowgauge railway network there had been growing also the needs for various transports and for larger number of narrow-gauge transport means for different purposes. But with such swing of the narrow gauge transport there had been starting to occu r prob lems with spac e for garages and repair of the engines as well as with space for current maintenance of all the engines. Likewise there were forecasts for further spreading of steel production up to the location of Štore II and consecutively also spreading of a normal track network at that location. Because of this they have decided to build at this location a new engineshed. The expression “engine shed” derives from railway terminology and means an object where locomotives

ar e ga rag ed , he at ed , wa sh ed , cleaned and currently maintained. The new engine shed was built in the year 1955 and was the first object constructed at this place. With a progressive moving of steel production up to a new location of Štore II there have fundamentally changed also conditions for transport activities. The transport had been gradually directing to a normal gauge railway transport and to a road transport. The dump for metallurgical waste had been moving out from the ironworks area and the function of the narrow-gauge railway has been taken over by a road transport. To all plants at the new location was lead a normal gauge railway. As all locomotives were completely exhausted and the narrow-gauge line was in very bad condition it was decided in the year 1978 that the narrow-gauge transport would be abolished. The last whistle of the narrow-gauge engine Štore No. 5 was heard on Friday, July 18. 1980 at 12:00 during its last run from our foundry of rolls up to our storehouse of narrow-gauge vehicles at “Šamac”. Janez Vovk Chief of Railway Transport

Stane Verbič, chief of STC (stock and transport centre), Janez Vovk, chief of railway transport, Uroš Filiplič, railway museum, M.Sc. Tadej Brate, an expert for technical heritage;

Masters of “old school” In the year 2005 completed their working careers in our company the following f o r e m e n : M r. B r a n k o Leskovšek, Mr.Alojz Pušnik and Mr.Miroslav Kolar. Mr. Branko Leskovšek as water installer by profession employed on August 30. 1974 in Železarna Štore of that time and started as machine locksmith in mechanical workshop of maintenance. Two years later he became (in accordance with his wishes and wishes of the company) a caster on continuous caster in steelwork. He worked and at the same time finished a school for a machine foreman. In the year 1977 he progressed to a continuous caster foreman and have been working there till his pensioning. In spite of that his position was among the upper stratum of our company he always remained a fighter for rights of workers and got a nickname Luka (according to the name of his pattern). On base of his professional knowledge and with help of his coworkers he built a noble bathroom for the steelwork workmen.

Branko Leskovšek

Mr. Alojz Pušnik was a scholar of Železarna Štore. He finished his education for a machine locksmith and employed in the company on 1.7.1968 at foundry. After military service he was sent to the rolling mill as a locksmith in attendance. In the year 1978 he finished a school for a machine foreman and started with an introduction for a rougher and progressed one year later to a foreman of rolling lines. Ten years later he was moved from the old rolling mill to new location Štore II. He was always stimulating his shift to reach record daily production results which had than to be pursued by other shifts.

Alojz Pušnik

Mr. Miroslav Kolar finished his education for an electrician in Maribor and employed in the year 1971 at electricity workshop in Železarna Štore. In the year 1978 he started as probationer for a foreman at steelwork After finishing of a school for an electricity foreman in the year 1979 he became a foreman of electric arc furnace. After the end of punishment given in the year 1996 by Ravne colleagues he was nominated for the main foreman. At the formation of a new syndicate called KNSS he became its representative in the company. The punishment from the year 1996 when he received in three months by 15 % lower wage fortified him so much the more as an unshakable fighter for higher wages.

Miroslav Kolar

FLAT BARS WITH SHARP EDGES DIN EN 10058 (DIN 1017, DIN 59200)

FLAT BARS DIN EN 10092-1-A (DIN 59145)

FLAT BARS DIN EN 10092-1-B (DIN 4620)

FLAT BARS DIN EN 10092-1-C (DIN 59146)

SQUARE BARS WITH ROUND EDGES DIN EN 10059 (DIN 1014)

ROUND BARS DIN EN 10060 (DIN 1013, DIN 2077)

SPRING STEEL: DIN EN 10089: 50CrV4, 51CrMoV4, 55Si7, 60SiCr7, 55Cr3 FORGING STEEL: EN10025: St.52-3, St.37-2 EN10083-1:od Ck22 do Ck60, 25CrMo(S)4, 34CrMo(S)4, 42CrMo(S)4, EN10084: 16MnCr(S)5, 20MoCr(S)5, 20MnCr(S)5 EN 10083-3: 30MnB5, DIN EN ISO 4957: 31CrV3, 51CrV4 ENGINEERING STEEL EXEM STEEL WITH IMPROVED MACHINABILITY: acc. WNr.: 20MnV6 EX, 38MnVS6 EX, 30MnB4+Ti EX, C15 EX, EN 10084: 16MnCr(S)5 EX, 21NiCrMo2 EX, 20MnCr(S)5 EX, EN 10084 in UNI 7846:16CrNi4 EX, EN 10025: RSt.37-2 EX, St.52-3 EX, EN 10083-2: C22 EX, C35 EX, C40 EX, C45 EX, EN 10083-1: Ck45 EX, 42CrMo(S)4 EX, UNI 7845: 39NiCrMo3 EX, UNI 7846: 18NiCrMo5 EX, WEAR RESISTANT STEEL: EN ISO 683-17: 100Cr6, acc. WNr.: 27MnSiVS6, 27MnSiVS6+Ti, 38MnVS6 Standard Dimension mm DIN EN 10058 (DIN 1017) 65 - 120 x 40 - 55 DIN EN 10058 (DIN 1017) 50 - 150 x 7 - 40 DIN EN 10058 (DIN 59200) 150 - 200 x 7 - 25 DIN EN 10092-1-A (DIN 59145) 50 - 120 x 8 - 35 DIN EN 10092-1-B (DIN 4620) 50 - 200 x 6 - 30 DIN EN 10092-1-C (DIN 59146) 60 - 120 x 16 - 62 Dimension mm 35 x 35 40 x 40 45 x 45 50 x 50 55 x 55 60 x 60 65 x 65 70 x 70

Radius mm 5 6 6 6 8 10 10 10

Standard DIN EN 10060 (DIN 1013)

DIN EN 10060 (DIN 2077) DIN EN 10278 (DIN 668) BRIGHT ROUND BARS DIN EN 10278 (DIN 668, DIN 671)

DIN EN 10278 (DIN 671)

Diameter / Process 21 - 68, 70, 72, 73, 75, 77, 78, 80, 82, 83, 85, 90, 95, 100, 105, 110, 130, 140 mm / rolled 21 - 68, 70, 72, 73, 75, 77, 78, 80 mm / rolled 19 - 50 mm / drawn 19 - 65 mm / peeled 19 - 50 mm / drawn 19 - 60 mm / peeled

For cross-sections from rd 21 rd 80 mm: Standard: Qmax = 0,004 x length, On special order: Qmax = 0,00125 x length. For cross-sections from rd 82 rd 105: Standard: Qmax = 0,0025 x length.

Internal information magazine of Štore Steel d.o.o. Editorship: Štore Steel d.o.o., Železarska c. 3, 3220 Štore, Slovenia Tel: +386 3 580 51 00, fax: +386 3 580 53 83, e-mail: [email protected], internet: www.store-steel.si

Avtor fotografij, zvočnih posnetkov in video projekcije: Mag. Tadej Brate