1、August 2009 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、77.140.15!$+#“1560800www.din.deDDIN 488-3Reinforcing steels Reinforcing steel in coils, steel wireEnglish translation of DIN 488-3:2009-08Betonstahl Betonstahl in Ringen, BewehrungsdrahtEnglische bersetzung von DIN 488-3:2009-08Acier pour bton arm Acier pou bton arm en enroulements, fil dacierTraduc
3、tion anglaise de DIN 488-3:2009-08supersedesDIN 488-4:1986-06www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.140 .10Partially7rDIN 488-3:2009-08 A comma is used as the decimal marker. Contents Page Foreword. 3 1 Scope . 4 2 Normati
4、ve references . 4 3 Terms and definitions 4 4 Symbols . 4 5 Designation and ordering 5 5.1 Standard designation . 5 5.1.1 Reinforcing steel coils . 5 5.1.2 Reinforcing wire 5 5.2 Ordering. 5 5.2.1 Reinforcing steel coils . 5 5.2.2 Reinforcing wire 5 6 Steel grade classification and product forms 5 7
5、 Requirements 6 7.1 Manufacturing processes 6 7.2 Nominal diameters, nominal cross-sectional areas and nominal masses . 6 7.3 Properties 7 7.3.1 General. 7 7.3.2 Properties determined in the tensile test . 7 7.3.3 Properties determined in the fatigue test. 7 7.3.4 Bend performance 7 7.3.5 Deviation
6、from the nominal cross-sectional area . 7 7.3.6 Weldability. 7 7.3.7 Surface geometry 7 8 Identification of the products 14 9 Proof of conformity. 14 2 DIN 488-3:2009-08 Foreword DIN 488-3:2009-08 has been prepared by Working Committee NA 021-00-03 AA Normung von Betonstahl und Spannstahl of the Nor
7、menausschuss Eisen und Stahl (FES) (Iron and Steel Standards Committee). Amendments The following amendments have been made to DIN 488-4:1986-06: a) All information on welded fabric has been deleted (refer now to DIN 488-4). b) Ribbed reinforcing steel coils made of steel grades B500A (1.0438) and B
8、500B (1.0439) have been included. c) Plain reinforcing wire BSt 500 G (1.0464) and indented wire BSt 500 P (1.0465) have been replaced by B500A+G (1.0438+G) and B500A+P (1.0438+P). d) The standard has been editorially revised. Previous editions DIN 488-4: 1972-04, 1986-06 3 DIN 488-3:2009-08 1 Scope
9、 This standard applies to ribbed reinforcing steel coils of steel grades B500A (1.0438) and B500B (1.0439) according to DIN 488-1 and to plain and indented reinforcing wire of steel grade B500A (1.0438) according to DIN 488-1 with the nominal diameters given in Table 2. 2 Normative references The fo
10、llowing 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. DIN 488-1:2009-08, Reinforcing steel Grades, properties
11、, marking DIN 488-6:2009-08, Reinforcing steel Part 6: Assessment of conformity DIN 1045-1, Concrete, reinforced and prestressed concrete structures Part 1: Design and construction DIN EN ISO 15630-1, Steel for the reinforcement and prestressing of concrete Test methods Part 1: Reinforcing bars, wir
12、e rod and wire (ISO 15630-1:2002) 3 Terms and definitions For the purposes of this standard, the terms and definitions in DIN 488-1 and DIN 488-6 apply. 4 Symbols See Table 1. Table 1 Symbols Symbol Unit Description d mm Nominal diameter of the product Anmm2Nominal cross-sectional area oTransverse r
13、ib flank inclination o Angle of inclination of transverse rib or indentation e mm Gap between rows of ribs or indentations hlmm Longitudinal rib height fR Relative rib area ammm Rib height at the mid-point of the transverse rib a1/4mm Rib height at the -length point a3/4mm Rib height at the -length
14、point b mm Width of transverse rib or width of indentation c mm Rib spacing or indentation spacing e mm Portion of circumference without indentations or ribs t mm Depth of indentation D mm Mandrel diameter 4 DIN 488-3:2009-08 5 Designation and ordering 5.1 Standard designation 5.1.1 Reinforcing stee
15、l coils Example of designation of ribbed reinforcing steel coils of steel grade B500B (1.0439) with a nominal diameter d = 12,0 mm: Reinforcing steel coils DIN 488 B500B 12,0 or Reinforcing steel coils DIN 488 1.0439 12,0 5.1.2 Reinforcing wire See the example in DIN 488-1. 5.2 Ordering At the time
16、of order, the desired quantity shall be given in addition to the standard designation. 5.2.1 Reinforcing steel coils Example of an order for 60 t of ribbed reinforcing steel coils of steel grade B500B (1.0439) with a nominal diameter d = 12,0 mm: 60 t Reinforcing steel coils DIN 488 B500B 12,0 or 60
17、 t Reinforcing steel coils DIN 488 1.0439 12,0 5.2.2 Reinforcing wire Example of an order for 50 t of plain (+G) reinforcing wire coils of steel grade B500A (1.0438) with a nominal diameter d = 6,0 mm: 50 t Reinforcing wire coils DIN 488 B500A+G 6,0 or 50 t Reinforcing wire coils DIN 488 1.0438+G 6,
18、0 6 Steel grade classification and product forms 6.1 This standard covers steel grades B500A (1.0438) and B500B (1.0439). The difference between these two steel grades is in the ductility property specifications (see DIN 488-1:2009-08, Table 2). 6.2 The two steel grades are delivered as ribbed reinf
19、orcing steel coils. Steel grade B500A (1.0438) is also delivered as reinforcing wire with a plain (+G) or indented (+P) surface in the form of coils and bars. 6.3 The inside diameter, outside diameter and mass of the coils may be agreed between the manufacturer and the customer. 5 DIN 488-3:2009-08
20、7 Requirements 7.1 Manufacturing processes See DIN 488-1:2009-08, 7.1.1, 7.1.2 and 7.1.4. 7.2 Nominal diameters, nominal cross-sectional areas and nominal masses Table 2 lists the deliverable nominal diameters and the nominal cross-sectional areas and nominal masses calculated from them. Table 2 Nom
21、inal diameters, nominal cross-sectional areas and nominal masses Nominal diameter mm Reinforcing steel coils Reinforcing wireaNominal cross-sectional areabmm2Nominal massckg/m 4,0 Xa,dX 12,6 0,099 4,5 Xa,dX15,9 0,125 5,0 Xa,dX19,6 0,154 5,5 Xa,dX23,8 0,187 6,0 X X 28,3 0,222 6,5 XdX 33,2 0,260 7,0 X
22、dX 38,5 0,302 7,5 XdX 44,2 0,347 8,0 X X 50,3 0,395 8,5 XdX 56,7 0,445 9,0 XdX 63,6 0,499 9,5 XdX 70,9 0,556 10,0 X X 78,5 0,617 11,0 XdX 95,0 0,746 12,0 X X 113 0,888 14,0 XeXf154 1,21 16,0 XeXf201 1,58 aNot to be used according to DIN 1045-1. bThe nominal cross-sectional area is calculated as foll
23、ows: An= 42d. cCalculated with a density of 7,85 kg/dm3. dOnly for use for the manufacture of welded fabric and lattice girders. eOnly B500B. fOnly for the manufacture of upper chords of lattice girders with a plain surface. 6 DIN 488-3:2009-08 7.3 Properties 7.3.1 General The requirements for the s
24、pecific properties apply to machine-straightened reinforcing steel coils. 7.3.2 Properties determined in the tensile test See DIN 488-1:2009-08, Table 2; ribbed steel: columns 2 and 3, reinforcing wire: columns 4 and 5. 7.3.3 Properties determined in the fatigue test 7.3.3.1 For ribbed reinforcing s
25、teel, see DIN 488-1:2009-08, Table 2. 7.3.3.2 For reinforcing wire, there are no fatigue strength requirements. 7.3.4 Bend performance To demonstrate the bend performance, the rebend test shall be carried out according to DIN EN ISO 15630-1. Bend the test pieces through an angle of at least 90 aroun
26、d a mandrel with a diameter D as specified in Table 3, age the test pieces (see DIN 488-6:2009-08, Table 21) and rebend them after cooling in still air to room temperature of at least 20 C. After the test, the test piece shall show no sign of fracture or cracks visible to a person of normal or corre
27、cted vision. Table 3 Mandrel diameters for rebend test Nominal diameter d mm Mandrel diameter D 16 5 d 7.3.5 Deviation from the nominal cross-sectional area See DIN 488-1:2009-08, Table 2. 7.3.6 Weldability See DIN 488-1:2009-08, Table 2. 7.3.7 Surface geometry 7.3.7.1 B500A (1.0438) reinforcing ste
28、el with ribbed surface 7.3.7.1.1 General B500A (1.0438) ribbed reinforcing steel coils shall have three rows of transverse ribs (see Figure 1). 7 DIN 488-3:2009-08 7.3.7.1.2 Transverse ribs 7.3.7.1.2.1 The transverse ribs shall be crescent-shaped in their longitudinal section. The ends of the ribs s
29、hall always taper off into the surface of the product. 7.3.7.1.2.2 Transverse rib flanks shall be inclined at more than 40 (flank inclination ) and the transition from the rib to the core shall be radiused (see Figure 5 a). 7.3.7.1.2.3 The angle of inclination of the transverse rib () shall be 40 to
30、 70. For rib rows with alternating angles of inclination, these may be 35 to 75. 7.3.7.1.2.4 The dimensions and spacing of the transverse ribs shall be as shown in Table 4. 7.3.7.1.2.5 The sum of the spacing of the rib rows, e, shall not exceed 25 % of the circumference. 7.3.7.1.3 Relative rib area
31、The values given in Table 4 for the relative rib area fRare 5 % quantiles relating to machine-straightened material. According to DIN 488-6:2009-08, 5.2.3.2, with unstraightened coil material, a tolerance of +15 % shall be maintained. The dimensions in Table 4 apply to machine-straightened material.
32、 Figure 1 Example of surface geometry of B500A ribbed reinforcing steel 8 DIN 488-3:2009-08 Table 4 Dimensions and spacing of the transverse ribs and relative rib area for machine-straightened B500A reinforcing steel (for further dimensions, see 7.3.7.1.2 and 7.3.7.1.3) Height (guideline values) Nom
33、inal diameter at mid-point at the quarter points Widtha(guideline values) Rib spacingb(guideline values) Relative rib areacd mm ammm a1/4a3/4mm b mm c mm fR4,0 0,30 0,24 0,40 4,0 0,036 4,5 0,30 0,24 0,45 4,0 0,036 5,0 0,32 0,26 0,50 4,0 0,039 5,5 0,35 0,30 0,55 5,0 0,039 6,0 0,35 0,30 0,60 5,0 0,039
34、 6,5 0,46 0,37 0,65 5,0 0,045 7,0 0,46 0,37 0,70 5,0 0,045 7,5 0,50 0,40 0,75 5,7 0,045 8,0 0,50 0,40 0,80 5,7 0,045 8,5 0,50 0,40 0,85 5,7 0,045 9,0 0,65 0,55 0,90 6,1 0,052 9,5 0,65 0,55 0,95 6,1 0,052 10,0 0,65 0,55 1,0 6,5 0,052 11,0 0,75 0,62 1,1 7,5 0,056 12,0 0,80 0,65 1,2 7,5 0,056 aWidths u
35、p to 0,2 d are permissible at the rib mid-point (measured perpendicular to the transverse rib). bPermissible deviation from the specified value +15 % and 5 %. c5 % quantile. 7.3.7.2 B500A (1.0438) reinforcing wire with indented surface In the case of B500A+P (1.0438+P) indented reinforcing wire, thr
36、ee rows of indentations are rolled into the surface distributed as uniformly as possible over the circumference and length (see Figure 2). The projecting parts of the indentations shall form an angle of 40 to 70 with the longitudinal axis. The indentation dimensions are given in Table 5. Figure 2 Ex
37、ample of the surface geometry of B500A+P indented reinforcing wire 9 DIN 488-3:2009-08 Table 5 Indentation dimensions of B500A+P indented reinforcing wire Indentation dimensions Nominal diameter d Depth tWidth bMid spacing c Sum of the spacings between the indentation rows e mm mm 0,05amm 0,5amm 1,0
38、amm max. 4,0 4,5 5,0 5,5 6,0 0,20 4,00 6,0 2,5 2,8 3,0 3,3 3,6 6,5 7,0 7,5 8,0 8,5 9,0 0,25 4,50 7,0 3,9 4,2 4,5 4,8 5,1 5,4 9,5 10,0 0,35 5,25 8,0 5,7 6,0 11,0 12,0 0,40 6,00 9,0 6,6 7,2 aMaximum permissible deviation in individual cases. 7.3.7.3 B500A (1.0438) reinforcing wire with plain surface B
39、500A+G (1.0438+G) plain reinforcing wire is manufactured with a plain surface as obtained in the drawing die. 7.3.7.4 B500B (1.0439) reinforcing steel 7.3.7.4.1 General Reinforcing steel coils of steel grade B500B (1.0439) with a ribbed surface shall have two or four rows of transverse ribs (see Fig
40、ures 3 and 4). 10 DIN 488-3:2009-08 NOTE For cross-section A-A, see Figure 5 a). Figure 3 Example of B500B reinforcing steel with two rows of transverse ribs 11 DIN 488-3:2009-08 Figure 4 Example of B500B reinforcing steel with four rows of transverse ribs 7.3.7.4.2 Transverse ribs 7.3.7.4.2.1 The t
41、ransverse ribs shall be crescent-shaped in their longitudinal section and shall not merge into longitudinal ribs present. 7.3.7.4.2.2 Transverse rib flanks shall be inclined at more than 40 (flank inclination ) and the transition from the rib to the core shall be radiused (see Figure 5 a). A-AaaSee
42、Figure 3. Figure 5 a) B500B transverse rib Cross-section at mid-rib 12 DIN 488-3:2009-08 Figure 5 b) B500B transverse rib Longitudinal section at mid-rib 7.3.7.4.2.3 The angle of inclination of the transverse rib () to the longitudinal axis shall be 40 to 70. For rib rows with alternating inclinatio
43、n angles, these may be between 35 and 75. 7.3.7.4.2.4 The dimensions and spacing of the transverse ribs shall be as shown in Table 6. 7.3.7.4.2.5 The sum of the spacing of the rib rows, e, shall not exceed 25 % of the circumference. 7.3.7.4.3 Relative rib area The values given in Table 6 for the rel
44、ative rib area fRare 5 % quantiles relating to machine-straightened material. According to DIN 488-6:2009-08, 5.2.3.2, with unstraightened reinforcing steel coils, a tolerance of +15 % shall be maintained. Table 6 Dimensions and spacing of the transverse ribs and relative rib area for machine-straig
45、htened B500B reinforcing steel (for further dimensions, see 7.3.7.4.2 und 7.3.7.4.3) Height (guideline values) Nominal diameter at mid-point at the quarter points Widtha(guideline values) Rib spacingb(guideline values) Relative rib areacd mm ammm a1/4a3/4mm b mm c mm fR6,0 0,39 0,28 0,6 5,0 0,039 7,
46、0 0,45 0,32 0,7 5,3 0,045 8,0 0,52 0,36 0,8 5,7 0,045 9,0 0,59 0,41 0,9 6,1 0,052 10,0 0,65 0,45 1,0 6,5 0,052 11,0 0,72 0,50 1,1 6,8 0,056 12,0 0,78 0,54 1,2 7,2 0,056 14,0 0,91 0,63 1,4 8,4 0,056 16,0 1,04 0,72 1,6 9,6 0,056 aWidths up to 0,2 d are permissible at the rib mid-point (measured perpen
47、dicular to the transverse rib). bPermissible deviation 15 %. c5 % quantile.13 DIN 488-3:2009-08 14 8 Identification of the products The products shall be identified according to DIN 488-1:2009-08, clause 8. 9 Proof of conformity Proof of conformity to the requirements of this standard shall be provided as specified in DIN 488-6.
