BS-3056-1-1985.pdf

BRITISH STANDARD BS 3056-1: 1985 Sizes of refractory bricks Part 1: Specification for multi-purpose bricks UDC 666.76-431 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 This British Standard, having been prepared under the direction of the Refractory Products Standards Committee, was published under the authority of the Board of BSI and comes into effect on 29 November 1985 © BSI 08-1999 First published February 1959 First revision August 1973 Second revision November 1985 The following BSI references relate to the work on this standard: Committee reference RPM/4 Draft for comment 83/72626 DC ISBN 0 580 14717 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Refractory Products Standards Committee (RPM/-) to Technical Committee RPM/4, upon which the following bodies were represented: British Ceramic Research Association British Gas Corporation British Metallurgical Plant Constructors Association British Steel Industry Cement Makers Federation Coke Oven Managers Association Glass Manufacturers Federation Institute of Refractories Engineers Refractories Association of Great Britain Society of Glass Technology Society of Industrial Furnace Engineers Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 © BSI 08-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Nomenclature1 3Sizes1 4Designation and statement of dimensions1 Appendix A Arch-brick formulae7 Appendix B Numbers of bricks needed in combining sizes to form circles of given diameters8 Appendix C Information to be supplied by a purchaser17 Figure 1 Diagrams illustrating arch-brick calculations8 Table 1 Dimensions of squares2 Table 2 Dimensions of splits2 Table 3 Dimensions of a tile3 Table 4 Dimensions of straights3 Table 5 Dimensions of side arch bricks4 Table 6 Dimensions of end arch bricks5 Table 7 Dimensions of crown bricks6 Table 8 Combinations of side arch bricks (A mm × 114 mm × 76/D mm) required to turn circles9 Table 9 Combinations of side arch bricks (A mm × 150 mm × 76/D mm) required to turn circles10 Table 10 Combinations of end arch bricks (230 mm × B mm × 76/D mm) required to turn circles11 Table 11 Combinations of end arch bricks (300 mm × B mm × 76/D mm) required to turn circles13 Table 12 Combinations of crown bricks (230 mm × 114/C mm × 76 mm) required to turn circles14 Table 13 Combinations of crown bricks (230 mm × 150/C mm × 76 mm) required to turn circles15 Table 14 Combinations of crown bricks (350 mm × 150/C mm × 76 mm) required to turn circles16 Table 15 Combinations of crown bricks (450 mm × 150/C mm × 76 mm) required to turn circles16 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 ii © BSI 08-1999 Foreword This Part of BS 3056 has been prepared under the direction of the Refractory Products Standards Committee. It supersedes BS 3056:1973 which is withdrawn. The first edition of this standard, issued in 1959, specified sizes in imperial units with metric equivalents. In the second edition, issued in 1973, metric units only were used and account was taken of the work in the International Organization for Standardization (ISO). The purpose of preparing this third edition is, first, to bring up to date the sizes specified and the size/material combinations, in the light of experience since 1973; and secondly to divide the standard into Parts so that it may cover bricks for a wider range of applications than general purposes alone. This Part is concerned with multi-purpose bricks, which are those that are widely used in many different applications of refractories. These should be considered by designers of refractory plant so that “specials” are only ordered after it has been ascertained that there is no brick size in this Part of BS 3056 that is suitable for the design. Nevertheless, some applications of refractory bricks have to be recognized as requiring brick sizes that are not included in this Part of BS 3056. Certain of these sizes for particular purposes are detailed in other Parts of BS 3056, for use in conjunction with selected multi-purpose bricks taken from this Part (it is possible, of course, that designers of refractory plant may find a use for these sizes outside the sphere for which they have been developed). The remaining Parts of BS 3056 are: Part 2: Specification for bricks for use in glass-melting furnaces; Part 3: Specification for bricks for rotary cement kilns; Part 4: Specification for bricks for electric arc furnace roofs; Part 5: Specification for bricks for blast furnace walls; Part 6: Specification for bricks for torpedo ladles1); Part 7: Specification for basic bricks for steel-making; Part 8: Specification for bricks for ladles1). Attention is drawn to the following British Standards which will be superseded by Parts 2 and 3 of BS 3056, respectively: BS 5187, Standard sizes of silica refractories for use in glass melting furnaces. BS 4982, Standard sizes of refractory bricks for use in rotary cement kilns. BS 4982-1, Basic refractories. BS 4982-2, Fireclay and high alumina refractories. This Part of BS 3056 has been prepared taking into account the views of both manufacturers and users of multi-purpose refractory bricks; it is therefore felt that it should find universal acceptance in the many sectors of British industry in which refractory bricks are used. The committee has carried out an extensive industrial survey which has been used as the basis for adopting the sizes specified in this Part of BS 3056. Wherever possible, they have tried to adhere to guidelines for standardization based on this survey. Only sizes of bricks which are used in large quantities in industry and have been commonly accepted in the UK have been included. A further requirement has been for simplicity of shape to permit economical production in mechanical brick press moulds. It is therefore intended that other shapes not included in this Part of BS 3056 will be referred to as special categories. 1) In preparation. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 © BSI 08-1999iii With this in mind, furnace designers are urged to take full account of this Part of BS 3056; it is the designer of a furnace, rather than the manufacturer or purchaser of the refractories, who can play the greatest part in achieving rationalization and economy in the use of shaped refractory products. Furnace designers are particularly asked to see whether a still larger proportion of multipurpose refractories can be selected from the range of sizes now offered. To assist designers in this objective, appendices to this Part of BS 3056 provide formulae for the calculation of the number of tapered and circle refractory products required to form circles, and tables giving the combination of sizes to form circles of given diameters. Nothing in this Part of BS 3056, however, should be taken to mean that multi-purpose refractory bricks will not be available in other shapes, other sizes or other combinations of size and material. The materials covered have been extended from the fireclay, high alumina and basic qualities of BS 3056:1973 to include silica refractories and insulating products. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 18, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 © BSI 08-19991 1 Scope This Part of BS 3056 specifies the sizes of the following shapes of multi-purpose refractory bricks: a) squares; b) splits; c) tiles; d) straights; e) side arch bricks; f) end arch bricks; g) crown bricks. NOTE 1Information is also given on the combinations of size and material/quality that may be expected to be available, on arch-brick formulae (see Appendix A), on the combinations of sizes required to form circles of various diameters (see Appendix B), and on, information to be supplied by a purchaser (see Appendix C). The volume of each standard size brick is given as supplementary information, in Table 1 to Table 7. NOTE 2The tolerances on the sizes are not specified in this Part of BS 3056, and may be the subject of agreement between manufacturer and purchaser. NOTE 3The titles of the publications referred to in this standard are listed on the inside back cover. 2 Nomenclature The names given to the various shapes of brick are as given in BS 3446, with the exception of straights (see Table 4). 3 Sizes The sizes of multi-purpose refractory bricks shall be as given in Table 1 to Table 7. NOTE 1The letter references used in Table 1 to Table 7 are shown in the figure accompanying each table. These letters do not necessarily apply to any other tables or figures in this or any other standard. NOTE 2Information on the material or qualities in which each of the sizes may be expected to be available is given in Table 1 to Table 7. It is emphasized that this information is included only as general guidance for the benefit of a user of this Part of BS 3056, and it is not to be interpreted as meaning that all of these combinations will be available, let alone available from any one supplier, or that no other combinations will be available. Information of this nature would normally be included in a British Standard in an appendix, but it is included in the tables as a matter of convenience. In the tables, the symbols in the column headings have the following significance: 4 Designation and statement of dimensions 4.1 The designations of the sizes shall be as given in Table 1 to Table 7. NOTEThese designations have been retained from the previous edition of BS 3056 for reference purposes. It is envisaged that they will be phased out or modified in any future revision. They should not be used for sole reference unless it is known that the recipients of the communication are conversant with them. It is recommended that, if there is any doubt whether the designations will be understood, the dimensions should be stated, either in conjunction with or instead of the appropriate size designations. 4.2 The dimensions of a brick, where stated, shall be given in the order given in Table 1 to Table 7. Ffireclay refractories (containing less than 45 % (m/m) alumina); HAhigh alumina refractories (containing 45 % (m/m) or more alumina); Bbasic refractories; Ssilica refractories; Iinsulating refractory products. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 2 © BSI 08-1999 Table 1 Dimensions of squares Table 2 Dimensions of splits NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCFHABSI mmmmmmL 164ab 176a 230 230 114 114 64 76 × × × × × × × × × × 1.68 1.99 1LBQ7623015076×××××2.62 1B64ab 1B76a 230 230 172 172 64 76 × × × × × × × × × × 2.53 3.01 a These sizes are included in ISO 5019-1:1984. b Non-preferred sizes. NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCFHABSI mmmmmmL 125 132ab 138a 152 230 230 230 230 114 114 114 114 25 32 38 52 × × × × × × × × ×× x × × × 0.66 0.84 1.00 1.36 a These sizes are included in ISO 5019-1:1984. b Non-preferred size. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 © BSI 08-19993 Table 3 Dimensions of a tile Table 4 Dimensions of straightsa NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCFHABSI mmmmmmL 1D76a23023076×××××4.02 a This size is included in ISO 5019-1:1984. NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCFHABSI mmmmmmL 3SQ 376 300 300 114 150 76 76 × × × × × × × × × × 2.60 3.42 4Lbc 4L76b 345 345 114 114 64 76 × × × × × ××× 2.52 2.99 4LBQ7634515076××3.93 6TB7637515076×4.28 8T76 8TB76 450 450 114 150 76 76 ×× × × × 3.90 5.13 a In BS 3446 this shape of brick is termed a whelp. b These sizes are included in ISO 5019-1:1984. c Non-preferred size. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 4 © BSI 08-1999 Table 5 Dimensions of side arch bricks NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCDFHABSI mmmmmmmmL 1SA24a 1SA12a 1SA6a 1SA3b 230 230 230 230 114 114 114 114 76 76 76 76 52 64 70 73 × × × × × × × × × × × 1.68 1.84 1.91 1.95 1SAL24 1SAL12 1SAL6 230 230 230 150 150 150 76 76 76 52 64 70 × × × × × × × × × × × × 2.21 2.42 2.52 a These sizes are included in ISO 5019-2:1984. b Non-preferred size. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 08:09:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3056-1:1985 © BSI 08-19995 Table 6 Dimensions of end arch bricks NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation DimensionsQuality Volume ABCDFHABSI mmmmmmmmL 1EA24a 1EA19ab 1EA12a 1EA6a 1EA3 230 230 230 230 230 114 114 114 114 114 76 76 76 76 76 52 57 64 70 73 × × × × × × × × × × × × × × × × × × × × × × × × 1.68 1.74 1.84 1.91 1.95 1EAL24 1EAL19b 1EAL12 1EAL6 230 230 230 230 150 150 150 150 76 76 76 76 52 57 64 70 × × × × 2.21 2.29 2.42 2.52 1EAB24ab 1EAB19ab 1EAB12ab 1EAB6ab 1EAB3b 230 230 230 230 230 172 172 172 172 172 76 76 76 76 76 52 57 64 70 73 × × × × × × × × × × × × × × × × × × × × × × × × 2.53 2.63 2.77 2.89 2.95 1EAD12ab 1EAD6ab 1EAD3ab 230 230 230 230 230 230 76 76 76 64 70 73 × × × × × × × × × × × × 3.70 3.86 3.94 3EA24b 3EA19b 3EA12b 3EA6b 300 300 300 300 114 114 114 114 76 76 76 76 52 57 64 70 × × × × × × × × × × × × × × × × 2.19 2.27 2.39 2.50 3EAL24 3EAL19b 3EAL12 3EAL6 3EAL3 300 300 300 300 300 150 150 150 150 150 76 76 76 76 76 52 57 64 70 73 × × × ×