SIST EN 10079:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Definition of steel productsDefinicije jeklenih izdelkovDéfinition des produits en acierBegriffsbestimmungen für StahlerzeugnisseTa slovenski standard je istoveten z:EN 10079:2007SIST EN 10079:2007en;fr;de77.140.01Železni in jekleni izdelki na splošnoIron and steel products in general01.040.77Metalurgija (Slovarji)Metallurgy (Vocabularies)ICS:SIST EN 10079:19951DGRPHãþDSLOVENSKI
STANDARDSIST EN 10079:200701-junij-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 10079March 2007ICS 01.040.77; 77.140.01Supersedes EN 10079:1992
English VersionDefinition of steel productsDéfinition des produits en acierBegriffsbestimmungen für StahlerzeugnisseThis European Standard was approved by CEN on 13 January 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 10079:2007: E

For example, Annex B provides guidance on the definition systems used in the former European Coal and Steel Community (ECSC) Treaty as well as the Statistical office of the European Communities and of the Harmonised Commodity Description and Coding System. The entries that are presented in this European Standard have been ordered systematically, and have been grouped by steel products according to: — shape and dimensions e.g. flat products, long products, heavy sections; — appearance and surface condition e.g. coated flat products, bright products. This European Standard also contains an alphabetical index, which has been included at the end of this document.

1 Scope This European Standard defines terms for steel products according to: a) shape and dimensions; and b) appearance and surface condition. NOTE 1 Although the products are generally defined independently of their end uses or manufacturing processes, it has sometimes been necessary to make reference to these criteria. NOTE 2 All dimensions given in this European Standard are nominal. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 39, Loose steel tubes for tube and coupler scaffolds — Technical delivery conditions EN 10017, Steel rod for drawing and/or cold rolling — Dimensions and tolerances EN 10024, Hot rolled taper flange I sections — Tolerances on shape and dimensions EN 10029, Hot rolled steel plates 3 mm thick or above — Tolerances on dimensions, shape and mass EN 10034, Structural steel I and H sections — Tolerances on shape and dimensions EN 10048, Hot rolled narrow steel strip — Tolerances on dimensions and shape EN 10051:1991 + A1:1997, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels - Tolerances on dimensions and shape (includes amendment A1:1997) EN 10055, Hot rolled steel equal flange tees with radiused root and toes — Dimensions and tolerances on shape and dimension EN 10056-1, Structural steel equal and unequal leg angles — Part 1: Dimensions EN 10058, Hot rolled flat steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled hexagon steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10067, Hot rolled bulb flats — Dimensions and tolerances on shape, dimensions and mass EN 10080, Steel for the reinforcement of concrete — Weldable reinforcing steel — General

steel in the liquid state ready for pouring and obtained from the melting of raw materials 3.2 ingots and semi finished products 2)
3.2.1 ingots products obtained by pouring liquid steel into moulds of a shape appropriate to the subsequent processing 3) into semi finished products, or flat or long products, generally by hot rolling or forging NOTE 1 The shape generally resembles a truncated pyramid or truncated cone; the side surfaces may be corrugated and the corners more or less rounded. Depending on subsequent conversion requirements, ingots may be dressed and/or hot scarfed or cropped without altering their status as “ingots”.
1) See B.1.2. 2) See B.1.3 and B.1.4. 3) In the case of ingots remelted by the vacuum arc of electroslag process, the products are obtained by melting, in a mould of appropriate shape, steel electrodes that have been previously cast, forged or rolled.

— Slab ingots, of rectangular cross section of width twice the thickness or over. 3.2.2 semi finished products 4)
products obtained by: — continuous casting that may or may not be followed by rolling, forging or cutting; — pressure casting; — rolling, forging or cutting of ingots or large section continuous cast products and generally intended for conversion into flat or long products by hot rolling or forging, or for the manufacture of forgings NOTE The cross sections may be of various shapes (see 3.2.2.1 to 3.2.2.5); the cross sectional dimensions are constant along the length with wider tolerances than those of the corresponding flat or long products and side corners more or less rounded. The side surfaces are sometimes slightly convex or concave, retaining rolling, forging or continuous casting marks and may be partly or totally dressed to remove surface defects, e.g. by cutting tool, torch or grinding. 3.2.2.1 semi finished products of square cross section semi finished products with sides of 50mm or over, generally described as blooms if the sides are greater than 200mm, or as billets if smaller NOTE These dimensions may be less for certain types of steel, e.g. high speed steels. 3.2.2.2 semi finished products of rectangular cross section semi finished products of cross section area 2 500 mm2 or over of width up to twice the thickness, generally described as blooms if the cross section area is greater than 40 000 mm2, or as billets if smaller 3.2.2.3 flat semi finished products products of thickness generally 50 mm or over of width twice the thickness or over, generally described as slabs 3.2.2.4 round semi finished products 5)
continuously cast or forged semi finished products of circular cross section 3.2.2.5 blanks for sections semi finished products intended for the manufacture of sections that have been preformed for that purpose NOTE 1 The cross section area is generally over 2 500 mm2. NOTE 2 In many countries the long products in question are obtained by rolling semi finished products of square or rectangular cross section.
4) See B.1.5 and B.2.2. 5) See B.1.4 and B.2.2.2.

3.3.1 general products having almost rectangular cross sections, the width being much greater than the thickness NOTE The surfaces are generally smooth except for certain products, e.g. floor plates, that show regular raised or indented surface patterns. 3.3.2 uncoated flat products flat products without any coating or surface treatment NOTE Flat products that have received a simple coating for the purpose of protection from corrosion or mechanical damage, e.g. passivation, organic coatings, paper, oil, lacquer etc. are defined as uncoated flat products. 3.3.2.1 hot rolled uncoated flat products flat products manufactured by hot rolling semi finished products, more rarely by hot rolling ingots NOTE Hot rolled flat products include those that have been given a very light cold rolling pass, normally less than 5 % reduction, known as a “skin pass” or “dressing pass”. 3.3.2.1.1 wide flat flat product of width over 150 mm up to and including 1 250 mm and thickness generally over 4 mm, always supplied in lengths, i.e. not coiled , and the edges are square i.e. hot rolled on the four sides (or in box passes) 3.3.2.1.2 plate and sheet 6)
flat rolled product, the edges being allowed to deform freely, supplied flat and generally in square or rectangular shapes with a width of 600 mm or over; but also in any other shape, e.g. circular or according to a design sketch NOTE 1 The edges may be as rolled or sheared, flame cut or chamfered. The product may also be delivered pre-curved. Hot rolled plate and sheet are defined as: — sheet: thickness less than 3 mm; — plate: thickness 3 mm or over. NOTE 2 Plate and sheet may be produced: a) directly on a reversing mill (this product is generally known as quarto plate), or by cutting from a parent plate rolled on a reversing mill; b) by cutting from hot rolled wide strip; this product is generally known as hot rolled sheet or plate. 3.3.2.1.3 strip hot rolled flat product that immediately after the final rolling pass or after pickling or continuous annealing, is wound into a regular coil NOTE 1 As rolled, strip has slightly convex edges, but may also be supplied with sheared edges or slit from wider strip.
6) See B.2.3.
3.3.2.2.1 plate and sheet cold rolled flat product, the edges being allowed to deform freely, supplied flat and generally in square or rectangular shapes with a width of 600 mm or over, but also in any other shape, e.g. circular or according to a design sketch NOTE The edges may be as rolled sheared, flame cut or chamfered. 3.3.2.2.2 strip cold rolled flat product that immediately after the final rolling pass, or after pickling or continuous annealing, is wound into a regular coil NOTE 1 As rolled, strip has slightly convex edges, but may also be supplied with sheared edges or slit from wider strip. NOTE 2 Cold rolled strip is further defined as: a) cold rolled wide strip: width 600 mm or over; b) cold rolled slit wide strip: rolling width 600 mm or over, slit to widths less than 600 mm before supply; c) cold rolled narrow strip: rolling width less than 600 mm. NOTE 3 After decoiling and cutting to length, cold rolled strip may be supplied as cut lengths or sheet. 3.3.3 electrical steels 7)
steels characterised by their magnetic properties, that are intended for use in magnetic circuits in electrical machines NOTE 1 They are supplied in the form of cold rolled sheet or strip, generally less than 2 mm thick and of width up to and including 1 500 mm. NOTE 2 There are also certain hot rolled flat products in thicknesses of 1,5 mm up to 5 mm with specified mechanical and magnetic properties. NOTE 3 Electrical steels are defined by the following specified principal magnetic properties: a) specific total loss in W/kg at a specified level of peak magnetic flux density, T and frequency Hz;
7) See B.1.6.
3.3.4.1 blackplate 9)
non alloy, low carbon steel supplied in strip or sheet form that has been single or double cold reduced NOTE 1 Single reduced blackplate is supplied in thicknesses from 0,17 mm up to and including 0,49 mm, double reduced blackplate in thicknesses from 0,14 mm up to and including 0,29 mm. NOTE 2 Blackplate is normally used to manufacture tinplate or electrolytic chromium coated sheet (ECCS), but in certain packaging applications it may be used as such. In such cases the product must be suitable for varnishing (lacquering) or printing. 3.3.4.2 tinplate non alloy, low carbon steel supplied in strip or sheet form that has been single or double cold reduced, and coated on both surfaces with tin in a continuous electrolytic process NOTE 1 Single reduced tinplate is supplied in thicknesses from 0,17 mm up to and including 0,49 mm, double reduced tinplate in thicknesses from 0,14 mm up to and including 0,29 mm. Tinplate is supplied normally with a passivation treatment and a protective coating of oil and is suitable for varnishing (lacquering) or printing. NOTE 2 Tinplate may also be obtained by hot dipping in a bath of molten tin. 3.3.4.3 tinned sheet and strip non alloy, low carbon steel supplied in strip or sheet form of a thickness of 0,50 mm or over and tin coated on both surfaces
8) See B.1.6 and B.2.4. These products may have other uses than for packaging. 9) See B.2.5.

hot or cold rolled products with a permanent coating other than those defined in 3.3.2, 3.3.3 or 3.3.4 whether: a) on both surfaces of: — equal thickness on each surface; — different thickness: differential coating; b) on one surface only. NOTE All figures for coatings shown below are nominal and relate to the current technology; they may change in future. According to the type of coating, the products are classified as follows: 3.3.5.1 metal coated sheet and strip
3.3.5.1.1 hot dipped metal coated sheet and strip flat products which have been metal coated by hot dipping in a molten bath, described by reference to the total coating mass, in g/m2. These include: a) lead tin alloy coated sheet and strip (terne plate); NOTE 1 In general, the highest nominal mass for the coating corresponds to a minimum of 120 g/m2 including both surfaces. b) zinc coated sheet and strip (galvanised sheet and strip); NOTE 2 The total mass of the zinc varies in general between a value as low as possible and 700 g/m2 11). The coatings may have a spangle finish or be without spangle. After zinc coating, the surfaces may be passivated by chromating or phosphating or treatment with compounds of vanadium and/or titanium. This final surface treatment does not alter the definition of such products as "zinc coated flat products".
c) aluminium or aluminium-silicon alloy coated sheet and strip; NOTE 3 Sheet and strip coated with aluminium or an aluminium silicon alloy: the total mass of the alloy varies in general between 40 g/m2 and 300 g/m2.
10) See B.1.6. 11) By agreement, the total coating mass may exceed 700 g/m2.

sheet and strip coated electrolytically with a lead tin alloy with coating thickness generally between 2,5 µm and 10 µm on each surface 3.3.5.1.2.2 electrolytically zinc coated sheet and strip (electrozinc sheet) sheet and strip coated electrolytically with zinc with coating thickness generally between 1 µm and 10 µm on each surface NOTE This coating never shows a spangle finish. After zinc coating, the surfaces may be passivated by chromating or phosphating or treatment with compounds of vanadium and/or titanium. This final surface treatment does not alter the definition of such products as "zinc coated flat products". 3.3.5.1.2.3 zinc nickel coated sheet and strip
Sheet and strip coated electrolytically with zinc nickel alloy with coating thickness generally between 1 µm and 8,5 µm on each surface 3.3.5.2 sheet and strip with organic coatings uncoated or metal coated (e.g. zinc coated) sheet and strip, subsequently coated with an organic material or a mixture of metal powder and organic material by one of the following continuous processes: a) by the application of one or more coats of paint or other type of product;
NOTE 1 After drying, the thickness of the coating varies according to its character from 2 µm to 400 µm on each surface. b) by the application of an adhesive film whether or not followed by a coating of organic materials NOTE 2 The coating may have different surface designs and a thickness generally between 35 µm to 500 µm on each surface. 3.3.5.3 sheet and strip with miscellaneous inorganic coatings sheet and strip coated with an inorganic material, e.g. vitreous enamel 3.3.6 profiled sheet sheet usually manufactured from coated sheet, but also from uncoated sheet, with a width much greater than the height of the profile (see Figure 1)

1 a)
1 b) Figure 1 — Illustration of typical profiled sheet (see 3.3.6) 3.3.7 composite products 12)
products comprising: a) plate, sheet and strip clad with steels or alloys to resist for example wear, chemical corrosion or heat distortion. Bonding is usually achieved by rolling, spraying, welding or explosion; b) sandwich steel sheet formed from two sheets bonded together by means of a synthetic sound insulating plastic layer; c) sandwich panels fabricated from two ribbed sheets bonded by an insulating layer (see Figure 2)
12) See B.1.8.
Figure 2 — Illustration of typical sandwich panel [see 3.3.7 c)] 3.4 long products
3.4.1
general those products that do not conform to the definition of flat products (see 3.3.1) NOTE They have a constant cross-section that is usually defined by a standard that fixes the normal size ranges and the tolerances on shape and dimensions. The surface is generally smooth, but in certain cases, e.g. reinforcing bars, may have a regularly raised or indented pattern. 3.4.2 rod hot rolled long product having a nominal size generally of 5 mm or above and wound into irregular coils NOTE The cross section may be round, oval, square, rectangular, hexagonal, octagonal, half round or of any similar shape. Its surface is smooth. Rod is generally intended to undergo further processing. It may also be used, with or without further processing, e.g. cold deforming, for the fabrication of welded mesh or for other elements used to reinforce concrete. 3.4.3 wire 13)
product of constant full cross section along its length, obtained by cold drawing rod through a reducing die or passing under pressure between rollers and rewinding the drawn product NOTE 1 The cross section is generally round, though sometimes oval, rectangular, square, hexagonal, octagonal or other convex section.
NOTE 2 The manufacturing processes give close control of geometric (size, surface condition) and mechanical properties. Wire may be supplied uncoated (as drawn, annealed) or coated (e.g. with zinc, copper, nickel or plastic materials). NOTE 3 Heat treatments and/or surface treatments may be carried out during the course of manufacture to improve the properties of wire.
3.4.4 hot finished bars products supplied in straight lengths but never in coils, thus differentiating them from rod 3.4.4.1 hot rolled bars 14)
hot rolled products in straight lengths of constant transverse section having a solid (convex) cross section as defined in 3.4.4.1.1 to 3.4.4.1.3 3.4.4.1.1 rounds bars having a circular cross-section of diameter generally 8 mm or above
13) See B.2.6. 14) See B.1.7.
3.4.5.1 drawn products products of various cross section shapes obtained, after descaling, by drawing of hot rolled bars or rod on a draw bench (cold deformation without removing material) NOTE This operation gives the product special features with respect to shape, dimensional accuracy and surface finish. In addition, the process causes cold working of the product that can be eliminated by subsequent heat treatment. Products in lengths are delivered straightened regardless of size. 3.4.5.2 turned products round bars produced by turning on a lathe where the product can be further processed by straightening and polishing NOTE 1 This operation gives the bar special features with respect to shape, dimensional accuracy and surface finish. The removal of metal is carried out in such a way that the bright product is generally free from rolling defects and surface decarburization. NOTE 2 For technical reasons some bars ordered as hot rolled products may be delivered roughly turned (peeled), nevertheless such products are treated as hot rolled products and not bright products.
15 See B.1.7
3.4.6.3 bars 16)
see definition in 3.4.4 NOTE These bars may, after hot rolling, have undergone a controlled cold deformation, for example lengthening or twisting about their longitudinal axis. 3.4.7 hot rolled sections
3.4.7.1 railway materials products used in the construction of railway tracks and other systems of rails 3.4.7.1.1 railway track products hot rolled railway products as follows: 3.4.7.1.1.1 heavy railway products: a) rails of linear mass 20 kg/m or over (except those in 3.4.7.1.2); b) sleepers of linear mass 15 kg/m or over 3.4.7.1.1.2 light railway products: a) rails of linear mass up to 20 kg/m (except those in 3.4.7.1.2); b) sleepers of linear mass up to 15 kg/m; c) conductor rails with specified electrical resistivity properties; d) rails for switches and crossings; e) guide rails;
16) See B.2.7.
3.4.7.2.1 sheet piling product obtained by hot rolling or cold forming (drawing, bending, roll forming, etc.) to a shape such that, by interlocking of the joints or fitting of longitudinal grooves or by means of special fasteners, it forms partitions or continuous walls NOTE Sheet piling is distinguished according to its form in cross section and its application: See Figure 3 for examples. a) U and Z sheet piling; b) straight web or flat sheet piling; c) fabricated sheet piling 17); d) boxed piles: fabricated from U or Z sheet piles and steel plates; e) combined walls:
i
interlocking H piling; ii H-piles with intermediary Z-sheet piling; iii interlocking tubular piles; iv tubular piles with intermediate sheet piling; v combined walls using boxed piles; f) cold formed sheet piling: i
sheet piling
(omega) and Z; ii trench sheeting; g) corner sections. 3.4.7.2.2 fabricated bearing piling fabricated piling, made up from steel elements and used for bearing purposes NOTE Boxed piles may be used as fabricated bearing piling.
17) See B.2.8.
NOTE The terms sheet piling and bearing piling include piling that has undergone certain finishing operations such as piercing or welding of attachments. (a) U sheet piling
(a) Z sheet piling
(b) Flat sheet piling
(c) Fabricated sheet piling
(d.1) Boxed pile
Figure 3 — Illustrations of typical sheet piling (see 3.4.7.2.1)

(d.2) Boxed pile
(d.3) Boxed pile
(e.i) Interlocking H-Piling
(e.ii) H piles with intermediary Z sheet piling
Figure 3 — Illustrations of typical sheet piling (see 3.4.7.2.1) (Continued)

(e.iv) Tubular pile with intermediate sheet piling
(e.v1) Boxed pile combined wall
(e.v2) Boxed pile combined wall
(f.i) Cold formed sheet piling:
and Z piling
(f.ii) Trench sheeting
(g) Corner sections
NOTE Design of interlocks vary according to manufacturer.
Figure 3 — Illustrations of typical sheet piling (see 3.4.7.2.1) (Concluded)

Figure 4 — Illustration of typical mining frame sections (see 3.4.7.3) 3.4.7.3 mining frame sections products with cross sections resembling the letter Ι or the Greek capital letter Omega () NOTE Mining frame Ι sections are distinguished from other Ι sections by a greater slope of the inside face of the flanges. Generally, they also have a flange width over 0,70 of the nominal web height (see Figure 4). 3.4.7.4 heavy sections hot rolled products with cross sections resembling the letters Ι, H, U (see Figure 5) NOTE 1 They have the following characteristics: a) web height of 80 mm or over;

H section
ΙΙΙΙ Section
U Section
Parallel flanged Tapered flanged
Figure 5 — Illustration of typical heavy sections (see 3.4.7.4)

3.4.7.5.1 small U, ΙΙΙΙ and H sections sections having a cross section shape resembling the letters U, Ι or H and where the web height is less than 80 mm (see Figure 5) 3.4.7.5.2 angles sections having a cross section shape resembling the letter L NOTE Angles can be defined as equal or unequal angles depending on the ratio of the flange widths. The corners of the flanges are rounded. 3.4.7.5.3 T sections with equal flanges sections having a cross section shape resembling the letter T, where the corners are rounded and the flanges and web are slightly tapered, and where the flanges are of equal width NOTE T Sections can also be fabricated from H Sections that are split along the web. These have parallel web and flange profiles. 3.4.7.5.4 bulb flats generally rectangular cross section shapes with a bulge along the full length of a longitudinal edge of one of the wider surfaces and a width generally up to 430 mm 3.4.7.5.5 special sections 19)
products hot rolled in lengths usually of small open cross section or of very special shape that are generally rolled in limited quantities and are not covered by 3.4.7.4 or 3.4.7.5.1 to 3.4.7.5.4 NOTE 1 This class includes in particular Z sections, T sections with unequal flanges, square edged L, U and T sections, track shoe sections, etc. NOTE 2 These sections may also be obtained by hot extrusion.
18) See B.1.7. 19) See B.1.9.
(Omega) sections; b) products for particular applications including cold formed sheet piling (see 3.4.7.2), crash barriers, building frames, door frames, lorry and wagon chassis. 3.4.10 tubular products
3.4.10.1 tubes hollow long products, open at both ends, of round or polygonal cross-section NOTE 1 Tubes may be finished at the ends, e.g. by threading or flaring, or coated on the interior and/or exterio
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