Tailor-made bright steel solutions

0302 SChmolz + BiCkenBaCh GRoUp SChmolz + BiCkenBaCh GRoUp

About s+bis+bi Group is one of the world’s leading providers of customised solutions in the special steel long products business. A global name in tool steel and stainless long steel, the Group is one of two largest companies in Europe for alloy and high-alloy engineering steel. With around 10,000 employees at its own production and distribution companies in over 35 countries across five continents, the Company supports and supplies customers wherever they operate. Besides the comprehensive Production and Sales & Services portfolio, our customers benefit from the Company’s technological expertise, consistent high quality worldwide and in-depth knowledge of local markets.

Providing Special Steel Solutions

SCHMOLZ + BICKENBACH Group: Production of specialty steel long products

04 SChmolz + BiCkenBaCh BRiGhT STeel

S+bi bright steel

Special steel solutions for every field of application

s+bi provides its customers with almost the entire range of bright steel in many qualities and dimen-sions.

Our wide product range is completed by a comprehensive array of services. From individual consulting through exten-

sive processing to logistical solutions, we offer you excellent technical know-how and a maximum of flexibility.

Our Sales & Services network ensures that our products are available in Germany, in Europe and around the world.

06 QUaliTY anD SeRViCe

Quality, service and individual processing

s+bi Blankstahl offers you the complete service spectrum, from production to distribution. We obtain the steel from our own plants or external suppliers at the world's best conditions.

When doing so, our long-standing coopera-tion with renowned steel producers ensures constant quality standards. To permanently guarantee these to you, not only the pro-ducers but also the steel they produce is subject to continuous controls. These go so far that on request we also certify our producers jointly with you.

As a result, our bright steel fulfills the high quality requirements of the automotive and mechanical engineering industries.

Our cross-matched range of services benefits you by ensuring that you always receive your steel products in tested quality from a single global source.

You also have access to our comprehen-sive array of services. These range from technical advice by highly qualified teams of engineers to a wide variety of processing possibilities. From simple saw cuts to processing with the tightest tolerances: from us you receive virtually everything that is technologically feasible in relation to short lengths and end-processing.

Our bright-steel assortment comprises several thousand articles in drawn, peeled and ground finishes, which are polished as standard.

Whether for country-specific standard qualities or customer-specific special materials for sophisticated components: with s+bi Blankstahl you have a service partner for every steel solution – if you wish, even for ready-to-install components.

09DRaWn BRiGhT STeel

Drawn bright steel is produced from hot-rolled steel bar or wire by chipless drawing

Drawn bright steel

The drawing process results in substantially higher dimensional accuracy than with hot-formed steel products. Dimensional accu-racy itself is an important precondition for workability on multi-spindle automatic lathes which allow the production of high-precision turned parts as specified in drawings. The drawing process also results in increased strength characteristics (tensile strength and yield point).

In the case of steel grades with low carbon content, the drawing process also improves their machinability. For all steel grades, the strain hardening that results from the drawing process can be reversed in a subsequent heat-treatment process. In our most modern production lines, we draw bright steel with high dimensional accuracy and surface quality, as well as defined mechanical characteristics, from bar to bar, from coil to bar, and from coil to coil.

To enable large cross-sections also to be drawn from bar with maximum precision, we employ bar-drawing benches with a drawing stress of up to 100 tons.

Thanks to the most modern interlinking of the plant components, we can descale, draw, straighten and saw bright steel from rolled raw material without extensive hand ling.

For efficient production, an eddy current testing system for surface defects as well as the end-processing systems are integrated in our production lines.

With coil-drawing we produce bright steel with a diameter of up to 40 mm from coil. Here, too, in-line production extends from bending-up, descaling, shearing and straight-ening through eddy-current testing and end-processing to weighing and packing.

Drawn bright-steel bar is always straight-ened and polished after it has been drawn. Thinner dimensions can also be supplied wound into coils. On request, the coils can also be laid in layers.

We supply drawn bright steel in a wide range of cross-sectional shapes according to DIN EN 10278 in tolerance class IT 11 or IT 9.

1110

Ground bright steel is drawn or peeled round material which has been additionally ground and polished to achieve an even better surface quality and an even greater dimensional accuracy.

This surface quality is therefore particularly suitable for surface finishing with high-gloss characteristics.

Ground bright steel

General engineering steel according to DIN EN 10125 and DIN EN 10277-2 stands for unalloyed steel grades which are mainly used in steel construction and mechanical engineering.

These steel grades can be given special mechanical-technological characteristics.

Steel for general applications

The following engineering steel grades are standardized in DIN EN 10277-2:» S235JRC +C and +SH [FN]» E295GC +C and +SH [FN]» E335GC +C and +SH [FN]» S355J2C +C and +SH [FF]

Strength-controlled steel grades:FN = rimming steel not permittedFF = fully killed, with sufficient content of nitrogen-binding elements, normalized on request.

The high dimensional accuracy of ground bright steel is of outstanding importance wherever it is used for machine parts without further surface treatment.

We supply ground bright steel according to DIN EN 10278 to tolerance class IT 6.

GRoUnD BRiGhT STeelpeeleD BRiGhT STeel

Peeled bright steel is exclusively round material (usually 14 mm diameter and higher). Compared to rolled steel, the material has greater dimensional accuracy and a bright, smooth surface.

This kind of bright steel is peeled from rolled or forged steel bar by rough-turning and afterwards it is straightened and polished. When peeling, the chip takeoff

is measured to such an extent that un avoidable surface defects resulting from the manu facturing process, such as rolling marks, cracks, pores, splinters or decarburisation seams are removed.

We supply peeled bright steel according to DIN EN 10278 in tolerance class IT 11 or IT 9. Other tolerances can be supplied upon request.

Peeled bright steel

We supply peeled round material according to DIN EN 10278

1312 CaSe haRDeninG STeel FRee CUTTinG STeel

Case hardening steel according to DIN EN 10084 and DIN EN 10277-4 are steel grades with a relatively low carbon content, which are used for workpieces whose surface layers are normally car-burized or carbonitrided before they are hardened. This gives them substantially greater hardness in the surface layer while maintaining the better toughness of the core zone.

Unalloyed case hardening steel is used for low-stressed parts such as hubs, shafts and levers for vehicle and general mecha-nical engineering.

Depending on the alloy, alloyed case hard-ening steel is used for parts with medium to high core-strength and toughness. Such parts include highly stressed gearwheels and control components in vehicles and aircraft construction and others.

Unalloyed steel grades: e.g. C10E, C10R, C15E, C15R

Alloyed steel grades: e.g. 16MnCr5, 20MnCr5, 20MoCr4. Other steel grades on request.

Alloyed steel grades with controlled sulphur content: e.g. 16MnCrS5, 20MnCrS5, 20MoCrS4, 20NiCrMoS2-2

The standard conditions are as follows:+C = cold drawn+SH = peeled, from 14 mm round+A = soft annealed+TH = treated on hardening strain +FP = treated on ferrite-perlite material

structures+AC = spheroidized

In some cases, these grades can also be supplied with an additional lead content (0.15 - 0.30 %).

Free cutting steel

Steel according to DIN EN 10087 and DIN EN 10277-3 for high-speed machining

Compared to sulphurized steel grades, free cutting steel (DIN EN 10087 and DIN EN 10277-3) shows a substantially improved machinability and surface finish which allow shorter production times.

Soft free cutting steel: e.g. 11SMn30, 11SMnPb30, 11SMn37, 11SMnPb37

These grades can also be supplied with added tellurium and/or bismuth. Heat-treat-ment for special magnetic properties can be agreed upon request.

Free cutting case hardening steel: e.g. 10S20, 10SPb20, 15SMn13

Free cutting heat-treatable steel: e.g. 35S20, 36SMn14, 38SMn28, 44SMn28, 46S20

These steel grades are normally supplied in cold-drawn condition.

Other conditions can be agreed upon request:+SH = peeledAdditionally heat-treated conditions:+A = soft annealed+SR = stress-relieved+QT = quenched and tempered

Case hardening steel

Steel according to DIN EN 10084 and DIN EN 10277-4 for case hardening

1514

Wind energy: We produce the basic material for up to

per rotor blade

oTheR STeel GRaDeSheaT-TReaTaBle STeel

Heat-treatable steel according to DIN EN 10083 and DIN EN 10277-5 are steel grades that are intended for quen-ching and tempering.

In addition, through inductive surface hardening, they can also be given maximum wear resistance. They are used for highly stressed screws, springs and piston rods, where especially the combination of high strength, wear-resistance and toughness is very important.

Unalloyed steel: e.g. C22 to C60, C22E to C60E, C22R to C60R

E = high-grade steelR = high-grade steel with a controlled sulphur content of 0.020 to 0.040 %

Other conditions:+C = cold drawn+SH = peeled, from 14 mm round+A = soft annealed+SR = stress-relieved+N = normalized+QT = quenched and tempered

For improved machinability, these steel grades can also be supplied with added lead of 0.15 to 0.30 %.

Alloyed steel: e.g. 38Cr2, 46Cr2, 34Cr4, 37Cr4, 41Cr4, 25CrMo4, 42CrMo4, 50CrMo4, 36CrNiMo4, 34CrNiMo6, 30CrNiMo8, 51CrV4.

Grades 38Cr2 to 42CrMo4 can also be supplied in sulphurized condition with S = 0.020 to 0.040 %. We supply other steel grades on request.

Other steel grades

Cold heading and cold extrusion steel according to DIN EN 10263

After heat treatment, this steel is character-ized by good cold formability.

The following conditions are available:+C = cold drawn+SH = peeled, from 14 mm round+A = soft annealed+FP = treated on ferrite-perlite material structures+AC = spheroidized

Additional surface treatments such as phos-phating or polymer coating are possible on request.

We issue material testing certificates according to DIN EN 10204. The contents and tests to be certified must be agreed upon when ordering.

Heat-treatable steel

Steel according to DIN EN 10083 and DIN EN 10277-5 quenched and tempered to be high-strength

1716 DimenSionSDimenSionS

More than

with approximately

Dimensions

Our bright steel assortment comprises more than 5,000 articles with approximately 400 material variants in drawn, peeled and ground finishes.

Dimensional ranges for our bright steel:» Drawn from 6 to 80 mm round» Peeled from 14 to 125 mm round» Ground from 6 to 125 mm round» Squares, hexagons and octagons

up to 80 mm » Dimensional limits are dependent on

the quality.

We produce steel in lengths according to DIN standard or in standard commercial lengths.

We supply special fixed lengths, short lengths, and specially processed end executions on request.

Our steel shows permissible deviations from nominal dimensions according to DIN and ISO standard tolerances for bright steel.

If requested, all tolerances can be supplied up to ISO tolerance class IT 6.

We also supply special sections in bars or coils in all executions in order to match drawings or samples upon request.

Lengths according to DIN standard or standard commercial lengths

1918 pRoDUCTion pRoGRamme SpeCial ShapeD SeCTionS

Nominal dimen-sion (mm)

h6 h7 h8 h9 h10 h11 h12

> 1 to ≤ 3 0.006 0.010 0.014 0.025 0.040 0.060 0.100

> 3 to ≤ 6 0.008 0.012 0.018 0.030 0.048 0.075 0.120

> 6 to ≤ 10 0.009 0.015 0.022 0.036 0.058 0.090 0.150

> 10 to ≤ 18 0.011 0.018 0.027 0.043 0.070 0.110 0.180

> 18 to ≤ 30 0.013 0.022 0.033 0.052 0.084 0.130 0.210

> 30 to ≤ 50 0.016 0.025 0.039 0.062 0.100 0.160 0.250

> 50 to ≤ 80 0.019 0.030 0.046 0.074 0.120 0.190 0.300

> 80 to ≤ 120 0.022 0.035 0.054 0.087 0.140 0.220 0.350

> 120 to ≤ 180 0.025 0.040 0.063 0.100 0.160 0.250 0.400

> 180 bis ≤ 200 0.029 0.046 0.072 0.115 0.185 0.290 0.460

Tolerance fields (example: h tolerance)

The above dimensional limits are negative deviations from nominal dimension. For example, for a nominal diameter

of 20 mm with tolerance field h9, valid dimension is 20 mm +0 / -0.052 mm, i. e. 19.948 mm to 20.000 mm.

R = round bar S = square bar H = hexagonal bar

Tolerance fields (example: h tolerance)

Finished state h6 h7 h8 h9 h10 h11 h12

Drawn R R R, S, H R, S, H

Peeled R R R R

Ground R R R R R R R

Polished R R R R R R R

ToleRanCe FielDS

Production programme for special shaped sections

Our hot rolled or bright drawn special sections are a cost-efficient alternative for construction in many fields of application.

For the production of customer-specific special sections, high-performance facilitiesare available at our premises.

The possible shapes are extremely diverseand adapted as far as possible to the indi-vidual requirements of our customers.

Except for air hardening steel, all kinds of steel can be delivered.

Weights per meter from 0.22 to 3.5 kg/mare possible, and up to 4.10 kg/m forparticularly suitable cross-sections.

On several winders, we draw not only special sections but also standard cross-sections from coil to coil, which are pre-rolled in our own conductive hot-rolling mill.

We can also supply special shaped sec-tions only pre-rolled to bar or coil.

In addition to our comprehensive technical possibilities, a team of experienced engi-neers is at your disposal for the develop-ment of individual shapes. They canprovide you with solutions for almost every field of application.

Cost-efficient alternative for a large variety of applications

21pRoDUCTion pRoGRamme SpeCial ShapeD SeCTionS

Weights per meter from

to

possible

Section Sectional shapeWidth

max. mmCross section

min. mm2Cross section

max. mm2

Flat sections Sharp edges or withmill edges

30 30 200

Rounded edgesR approx. 1/3 thickness

33 30 220

Round side surfacesR approx. 1/2 thickness

35 30 340

Round, both sides flattened

35 30 340

Bevelled edges,bevel approx. 1/3 thickness

33 30 340

Square sections

Sharp edges or with mill edges

14 30 200

One side bevelled, sharp edges or mill edges

14 30 200

All sides bevelled or rounded

15 30 230

Production programme for special shaped sections

23enD pRoCeSSinG

+C (K), +SH (SH), +SL (SL)Roundin mm

Squarein mm

Hexagonalin mm

Chamfer Standard length

in mm

Chamfer + face 6 - 75 6 - 40 6 - 70 30°, 45°, 60° 2000 - 6000

Chamfer + face + centre 10 - 70 8 - 36 10 - 70 30°, 45°, 60° 2000 - 6000

Tap max. 30 mm on request on request 2000 - 6000

Standard for commercial lengths

For efficient production, end-processing system are integrated in our production lines

End processing

2524

Normalisation from

to

Approximately

short pieces per year

ShoRT lenGTh pRoDUCTion

For special customer requirements and targeted applications, our bright steel products can be heat treated.

Under an inert gas atmosphere, we can per-form stress-relieved, soft and spheroidised annealing as well as normalisation in the temperature range from 560 °C to 900 °C.

In our short length production plant, brightsteel is manufactured for further processingpurposes in accordance with customerrequirements in diameters of 8 to 80 mm, in lengths of between 25 to 2000 mm, and up to a maximum piece weight of 25 kg. Depending on the machinery used,processing lengths (turning) are 10, 50 or120 mm. Depending on the machine and diameter, length tolerances range between ± 0.05 mm and ± 0.10 mm. On high-perfor-mance automatic machinery we can saw, deburr, turn, plan, chamfer, center anddegrease. Furthermore, end processing according to drawing can also be provided on request. Respective combinations can be freely selected.

For highest strength requirements, we can anneal round and hexagonal cross sections and tubes in our single-bar quenching and tempering plants. In these facilities we are able to adjust mechanical-technological properties which cannot be achieved by conventional means.

In addition to that, features relating to process safeguarding can also be checked.

Over and beyond the above-mentioned,we can offer further services such as washing, length measurement, straightness testing, demagnetisation, weight recording, stamping and packaging.

By means of fully automatic packaging systems, the finished short pieces can be customer-specifically packed either as bulk freight or in layers in customer owned containers. The packing units can be small or large, as per customer request.

Short length production Heat treatment

heaT TReaTmenT

26 eDDY CURRenT TeSTinG

To detect surface defects, depending on the cross-sectional shape and given recording limits, either the feed-through coil method or the rotating system method is used.

For round material cross sections, the two methods can be used alternatively or together. For non-round cross sections, only shape-adapted feed-through coils can be used.

To achieve the required high defect reso-lution, in most cases differential coils are used for the eddy current surface test.

The differential connection is invariably aligned with the scan direction of the coil

or rotating probe, i.e. in the case of the feed-through coil, in longitudinal direction of material, and in the case of the rotating probe, in circumferential direction. This results in a specific sensitivity to different types of defect.

Specifically, the encircling feed-through coil is particularly sensitive to short longitudinal and transverse-oriented defects as well as to local flaws such as holes, breakages and peeling shells.

On the other hand, the rotating probe is particularly sensitive to detect open lon-gitudinal surface defects, such as overlaps, seams and tension cracks.

Eddy current testing

Differential coils achieve the required high defect resolution

29UlTRaSoniC TeSTinG

Ultrasonic testing

Our most rigorous test that can be technically and economically performed

When steel is produced, a sporadic occurring of internal material discontinuities cannot be completely avoided. To ensure that highest requirements for the internal quality of the bright steel are achieved, we can perform ultrasonic testing. This method of testing is a so-called non-destructive impulse-echo process.

Depending on the application, with the ultrasonic method that we use, we can test for inclusions up to a maximum circular disc reflector – also known as flat bottom hole – size of 0.7 mm.

In case of round cross sections, the testing method we use also enables us to detect

internal faults in the full volume or full cross section with a length of 5 mm or more up to 0.10 mm below the surface.

This test is currently one of the most rigo-rous checks that can be applied technically and economically to bright steel bars and is even below the limit value of the applicable DIN EN standards.

Typical components that place maximum demands on the internal quality of bright steel are, for example, individual parts of the common-rail diesel fuel-injection system as well as engine and gearbox components that are designed for high fatigue strength.

30 maTeRialS TeChnoloGY

s+bi materials technology offers our customers the reliable basis for receiving individual and high-quality steel and aluminium solutions.

Our technicians’ know-how ensures that we understand our customers’ specific requirements and provide you with the optimal steel.

Our materials technology is supported by the latest testing equipment. This enables us to perform all chemical, physical and mechanical-technological tests that are necessary to determine the characteristic properties of the following steel grades:

» Free cutting, case hardening and cold heading steel

» General engineering and heat-treatable steel

» Stainless, acid- and heat-resistant steel» Tool and high-speed steel

We use the following methods and equip-ment for determination:

» carbon/sulphur (C/S) analyser» chemical analysis by emissions spectro-

meter, stationary/mobile» strength and toughness testing by tensile

and notched bar impact tests at high and low temperatures

» Vickers, Brinell and Rockwell hardness testing and microhardness testing

» testing of magnetic properties including hysteresis

» determination of microstructure, purity degree and grain size by microsections

» detection of internal material flaws by ultrasonic testing

» detection of external material flaws by magnetic particle inspection testing and eddy current testing

» roughness measurements

Materials technology

Excellent technical Know-how for the very best steel solutions

Quality Management

Awarded with the Ford Q1 Preferred Quality Award

In order to fulfill the highest requirements – such as those of the automotive industries, the automotive supply industries and the mechanical engineering industries – we target at a zero-error policy whose main focus is on preventing production errors. In meeting this aim over the long term, we rely on the permanent optimisation of our processes and employ the follow-ing tools and/or methods:

» Project planning/advance quality planning» Statistical process control (SPC)» Process and machine capability analysis» Measuring system analysis (MSA)» Failure Mode and Effects Analysis (FMEA)» Audits (product, process and system audits)» Benchmarking» 8-D reporting» Initial sample routine (PPAP/VDA/IMDS record)

In addition, we have been certified by TÜV Nord in accordance with DIN EN ISO 9001:2008 orISO TS 16949:2009 and by TÜV Rheinland in accordance with AD 2000-Merkblatt WO(Pressure Equipment Directive) and awarded by Ford with the Q1 Preferred Quality Award.

3332 DiSTRiBUTion DiSTRiBUTion

s+bi Blankstahl GmbH

s+bi Blankstahl GmbHEupener Straße 70D-40549 DüsseldorfFon +49 (0)211 5 09 0 Fax +49 (0)211 5 09 2314

s+bi TrossingenGottlieb-Daimler-Straße 2 - 4D-78647 TrossingenFon +49 (0)7425 22 03 45 Fax +49 (0)7425 22 03 4745

Locations

From several locations in Germany we deliver our steel throughout Europe and around the world.

34

Comprehensive environmental management system since

enViRonmenTal anD eneRGY manaGemenT SYSTem

At s+bi the respon-sible handling of resources and protection of the environment are of paramount impor-tance. Already in 2003 we started to build up a comprehensive environmental ma-nagement system according to the ISO 14001 international standard.

s+bi Blankstahl GmbH is certified to ISO 14001:2009. This is subject to regular internal monito-ring.

According to the guidelines of the ISO 14001 Environmental Management stan-dard, all of the company's processes are analyzed and classified for their environ-mental compatibility. Wherever necessary, optimisation measures are continuously defined and implemented.

An effective organisational structure, defined processing methods and operat-ing procedures ensure that the sustainable

corporate goals for responsible handling of resources and protection of the environment are constantly pursued.

In 2012, s+bi Blank-stahl GmbH, supplemented its environ-mental management system by adding an energy management system in accordance with ISO 50001:2011.

In line with the specifications of this stan-dard, all energetic processes are firstchecked with regard to their energy effi-ciency and then integrated into strategic and operational energy targets. The assess-ment of these energetic processes involvesdifferentiated acquisition and evaluation of energy data, which creates a basis for identifying approaches that will facilitate the long-term improvement of the energy balance. For this reason, the planning stage of new projects already includes an energy analysis to ensure that energy issues can be taken into account at implementation stage.

Environmental and Energy Management System of s+bi Blankstahl

S+Bi Blankstahl GmbH

Eupener Str. 70D - 40549 Düsseldorf

www.blankstahl.schmolz-bickenbach.com

Subject to amendments, errors and misprints.

Product-specific data sheets have precedence over the information

in this catalogue.

2014-0010