The following are represented on Committee BD-084: Association of Consulting Engineers, Australia. Australian Chamber of Commerce and Industry. Australian . AS4671:2001. Steel Reinforcing Materials. - it covers 500 MPa rebar, rod, wire & mesh and supersedes AS1302, 1303 & 1304. Amendment 1 – June 2003. As well as the Reinforcing Materials Standard, steel reinforcement has to comply with the provisions of a number of other associated. Standards. • AS4671 Steel.
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Certified for compliance to benchmark ASTM and ISO standards for mechanical connectors n. Compliant to Australian standards AS4671, AS4600 and AS3600. AS 4671-2001(澳标螺纹) - AS/NZS 4671:2001 (Incorporating Amendment No. 1) AS/NZS 4671 Australian/Ne. In July 2019 the Concrete Institute of Australia, along with the Steel Reinforcement Institute of Australia, will present a seminar titled “Essential Steel Reinforcing.
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Sort By... Conversely, Normal class steels are unlikely to be used in New Zealand where the seismicity is generally high. This Standard does not apply to prestressing steels, stainless steel reinforcement, epoxy-coated steels and galvanized steels. AS 1199 1310 1311 1313 1391 1399 1554 1554. NOTE: The probability of a test value being below this value is 1 — p at a confidence level of 0. NOTE: The probability of a test value being above this value is 1 — p at a confidence level of 0.
For twin bar mesh, the overhang is measured from the midpoint line of the adjacent bars see Figure 3.
For twin bar mesh, the pitch is measured between the midpoint of the adjacent bars see Figure 3. The processing may include cold-rolling, cold-drawing, decoiling and straightening, or automatic, electrical-resistance welding.
Strength grade—by the numerical value of the lower characteristic yield stress expressed in megapascals.
Size—by the numerical value of the nominal diameter expressed in millimetres. The designators shall be stated in the order of shape, strength grade, ductility class and size. Full designators shall be used in all communications unless the use of abbreviated forms causes no ambiguity, and the omitted characteristics can be readily distinguished or deduced.
Configuration of the orthogonal bars—by the letters S or R, representing Square or Rectangular configurations.
Size—by the numerical value of the nominal bar diameter in the longitudinal direction, expressed in millimetres. Transverse spacing of the longitudinal steel—by the numerical value of the transverse spacing, expressed in millimetres, divided by 100. Transverse reinforcement for rectangular configured welded mesh—by the numerical value of the nominal bar diameter expressed in millimetres.
Transverse reinforcement shall be of the same shape, strength grade and ductility class as the longitudinal reinforcing steel.
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Unless noted otherwise, transverse reinforcement is usually spaced at 200 mm centres. The designators shall be stated in the order shape, strength, configuration, ductility, size, spacing and secondary reinforcement if applicable. Processing of coiled steel shall only be carried out in such a way that ensures the material properties of this Standard are met. The joints at the intersections of the longitudinal bars and the transverse bars shall be made by electrical resistance welding to provide shear resistant connections complying with Clause 7.
Mesh that includes butt welded bars shall be permitted. The steels conforming to this Standard shall be deemed to be weldable under the conditions specified for each class in AS 1554. In all determinations of mechanical properties, the condition of test pieces at the time of testing shall be as given in Table 3. Type of analysis C Cast analysis Product analysis 0.
Except for the rebend test, see Clause 7. Straightened and aged? The values for R e and R m shall be calculated using the nominal cross-sectional areas of the reinforcing steels.
For the yield stress Re specified in Table 2, the lower yield stress shall apply.
Australian Standard AS 4671:2001 Steel Reinforcing Materials - Western Australia
If an observable yield phenomenon is not present, the 0. In cases of dispute, the 0. The suitability of bars for bending or rebending shall be determined by bending around the stated mandrel diameters and angles specified in Table 4.
After bending or rebending there shall be no visible evidence of cracking on the surface of the test bar, when inspected with the naked eye or with normal corrected vision.
A1 NOTE: In case of dispute the rebent bar may be subject to a tensile test and will be deemed to have passed the rebend requirements if the mechanical properties of this piece comply with Table 2.
The welded connection at the intersection of bars in a mesh shall be capable of resisting a direct shear force of not less than 0. For 7. The geometry of ribs or indentations shall comply with Clause 7. For deformed reinforcement, achievement of the required bond with concrete shall be demonstrated by compliance with Clause 7. For ribbed bars, longitudinal ribs may or may not be present.
Methods for determining the geometry of ribs and indentations are provided in Paragraph C3 of Appendix C.
The crest width of ribs w c shall be not greater than 0. The indentation depth h shall be between 0.
The width of indentations w i shall be not less than 0. When so determined, the minimum value shall be as follows: a For ribs f R : i ii iii iv v b 0.
For indentations fP : i ii iii iv v 7. NOTE: Before detailing purpose-made mesh, specifiers should ascertain any limitations on length, width, configuration, or mass of sheets that may be imposed by the manufacturing plant or equipment. The pitch shall be measured as shown in Figure 3. Deformed Grade 300E—identified by two rows of transverse ribs reversing in direction on opposite sides of the bar and having on one or two sides, two additional longitudinal marks joining two consecutive transverse ribs.
Deformed Grade 500L—identified by three rows of transverse ribs or indentations with one row in the reverse direction to the other two. Deformed Grade 500N—identified by two or more continuous and clearly visible longitudinal marks in addition to longitudinal ribs if present, or by a minimum of two short transverse marking that are clearly distinguishable from the transverse ribs. Deformed Grade 500E— excluding threaded bar identified by two rows of transverse ribs reversing in direction on opposite sides of the bar and have on one or two sides, two missed deformations adjacent to two additional longitudinal bars joining two consecutive transverse ribs.
Plain Grade 250N— no particular identifying features. Plain Grade 300E—identified by a raised dot. Plain Grade 500E—identified by a raised dot and dash. Right-hand-threaded Grade 500E — identified by one short transverse rib on one side of the bar. The use of a product certification scheme. Other such means proposed by the manufacturer or supplier and acceptable to the customer. This procedure will only be valid if the sampling plan has been determined on a statistical basis and the following requirements are met: a The sample shall be drawn randomly from a population of product of known history.
The history shall enable verification that the product was made from known materials at essentially the same time, by essentially the same processes and under essentially the same system of control. For each different situation, a suitable sampling plan needs to be defined.
A sampling plan for one manufacturer of given capability and product throughput may not be relevant to another manufacturer producing the same items.
Sampling and the establishment of a sampling plan should be carried out in accordance with AS 1199, guidance to which is given in AS 1399. The certification scheme should meet the criteria described in HB 18. The certification scheme serves to indicate that the products consistently conform to the requirements of the Standard.
Irrespective of acceptable quality levels AQLs or test frequencies, the responsibility remains with the manufacturer or supplier to supply products that conform with the full requirements of the Standard. The results shall satisfy both the batch and long-term quality levels in accordance with Paragraphs B4 and B6. Where long-term quality levels are not available, steel shall be sampled, tested and evaluated in accordance with Paragraph B7.
Mechanical properties, one test for each 50 t of product or part thereof, but not less than three tests per batch.
australian standard 4671e
Surface geometry of deformed products, one test per batch see Note 3. Mechanical and bending properties, one test per diameter per machine per week see Note 2.
A1 iii Deformation height or depth of deformed products, one test per day per machine and at each size change see Note 3. It shall be permissible to sample from straightened and cut bars prior to welding, provided that it can be demonstrated that the welding does not adversely affect the mechanical properties. Weld-shear test, one test per batch on each of two separate intersections from different wires. A1 ii iii Form and dimensions of the mesh, one test per batch in accordance with Clause 7.
A1 iv v 1 Surface geometry of component deformed bars, one test per batch on any longitudinal bar and one transverse bar see Note 3. Chemical testing is not required see Note 1. Upon request, compliance with Clause 7. Only rib heights or indentation depths to be measured for each batch, with circumferential gap and transverse rib spacing or indentation spacing to be measured at each roll change or adjustment.
U and no individual test value of Re is less than 0.
L or greater than 1. U; or all test values of R e fall between R ek. L and Rek.
For A gt — X b is not less than the specified value. If any requirements in Items a , b or c above are not satisfied, the batch shall be deemed to be non-conforming and subject to further action in accordance with Paragraph B5. For the non-conforming batch, twice as many additional items shall be taken from the batch and tested for the particular non-conforming parameter s concerned.
If the additional test results demonstrate conformance, then the batch shall be deemed to comply with the Standard, and all of the additional results included for long-term conformance see Paragraph B6. If any of the additional test results demonstrate non-conformance, then the batch shall be rejected as non-conforming and the steel producer or steel processor, as appropriate, shall take immediate action to minimize the probability of further non-conformances of the same kind.
The results from the non-conforming batch shall be excluded from the long-term conformance calculations. A1 For each parameter, the determinations shall be made on a continual basis but at intervals of not more than one month , covering the preceding six months test results or the last 200 consecutive test results.
NOTES: 1 The evaluation of long-term quality levels is based on the assumption that the distribution of a large number of test results is normal; however, this is not a requirement. A1 2 B6.Upon request, compliance with Clause 7. This role is vital in assisting local industry to compete in international markets.
We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. The measuring distance is deemed to be the interval between the centre-line of an indentation and the centre-line of another indentation on the same side of the product determined in a straight line parallel to the longitudinal axis of the product.
A1 For each parameter, the determinations shall be made on a continual basis but at intervals of not more than one month , covering the preceding six months test results or the last 200 consecutive test results.