Hot-rolled products in weldable fine grain structural steels - Part 1: General delivery conditions

1.1 This European Standard specifies requirement for long products and flat products of hot-rolled weldable fine grain structural quality and special steels. Part 1 of this European Standard specifies the general delivery conditions Part 2 of this European Standard specifies the delivery conditions for normalized steels in the grades and qualities given in table 1 (chemical composition) and tables 3 and 4 (mechanical properties) of part 2. NOTE: Whenever normalized is mentioned, normalized rolled is also covered (see 7.2 of part 2). Part 3 of this European Standard specifies the delivery conditions for thermomechanical rolled steels in the grades and qualities given in table 1 (chemical composition) and tables 3 and 4 (mechanical properties) of part 3. The steels specified in this European Standard are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storages tanks, water supply tanks, etc., for service at ambient and low temperatures. 1.2 This European Standard does not apply to products for which other EURONORMS exist or European Standards dealing with steels for general structural applications are being prepared: - Hot-rolled products of non-alloy structural steels - (see EN 10025), - Semi-finished products for forging in general purpose structural stee~s - (see EURONORM 30). - Weathering steels for structural purposes - (see EN 10155). - Plates and wide flats made of weldable fine-grained structural steels in the quenched and tempered condition - (see prEN 10137). - Flat products in high yield strength steels for cold forming - wide flats, sheet/plate, wide and narrow strip - (see prEN 10149). - Steels for shipbuilding - normal and high strength qualities - (see EURONORM 156). - Hot finished structural hollow sections (see prEN 10210-1).