BS 8548:2017 pdf download

BS 8548:2017 pdf download.Guidance for arc welding of reinforcing steel.
BS 8548 has been prepared with the aim of clarifying the requirements and providing suitable guidance for the arc welding of carbon steel reinforcing bars produced in accordance with BS 4449 and BS 4482. BS 8548 has been developed to reflect current best welding practice, standards and specifications.
BS 8548 also gives recommendations and guidance on friction welding in Annex A.
BS 8548 gives general guidance for the satisfactory production and control of the welding of steel reinforcement in accordance with the requirements of BS EN 1011-2, BS EN ISO 17660-1 and BS EN ISO 17660-2. In order to aid the specifier and manufacturer using these standards, additional informative guidance has been added, especially regarding the steps to be taken to avoid hydrogen cracking.
The procedures and test requirements contained in this standard apply to the assessment of the weld and its potential effect on the welded reinforcement but do not take into account design criteria, e.g. fatigue, that are the responsibility of the relevant application standard.
The preferred method of control of welding is under factory conditions. Construction site welding, if conducted, should be carried out under similar
BS EN ISO 9606-1:2013, Qualification testing of welders — Fusion Welding — Part 1: Steels
BS EN ISO 13916, Welding — Guidance on the measurement of preheating
temperature, interpass temperature and preheat maintenance temperature
BS EN ISO 14731:2006, Welding coordination — Tasks and responsibilities
BS EN ISO 15613:2004, Specification and qualification of welding procedures for metallic materials — Qualification based on pre-production welding test
BS EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
BS EN ISO 15620, Welding — Friction welding of metallic materials
5 Materials — Parent materials
5.1 Reinforcing steels
Reinforcing steels should conform to the requirements of BS 4449 or BS 4482.
5.2 Other steel components
Other steel components should have carbon equivalent, sulphur and phosphorus levels not greater than those specified in 7.1 of BS 4449:2005+A3 and in BS 4482 for the reinforcing steel being welded. Other steel components may include hot rolled products of structural steels in accordance with BS EN 10025.
5.3 Material test certificates
All the steels being welded should have a material test certificate available which should include the carbon equivalent value (Ceq) and the manufacturing process route.5.4.1 General
Welding consumables should be designated in accordance with the relevant product standard. Consumables should be selected with regard to the particular application, e.g. joint design, welding position and the properties required to meet the service conditions. Any special recommendations given by the manufacturer/supplier should be observed.
Many welding consumables are now required to be CE marked and relevant documentation should be verified before use of materials.
5.4.2 Supply, storage and handling
All consumables should be stored and handled with care and in accordance with the relevant standards and/or the manufacturer’s/supplier’s recommendations.
All covered electrodes, wire electrodes, rods and fluxes, etc. as well as their packaging, which show signs of damage or deterioration should not be used.
NOTE Examples of damage or deterioration are cracked or flaked coatings on covered electrodes, rusty or dirty wire electrodes and wire with flaked or damaged.BS-8548-2017

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