BS EN 10025-4:2004 – Hot rolled products of structural steels — Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels

1 Scope
Part 4 of this document, in addition to Part 1 , specifies requirements for flat and long products of hot rolled weldable fine grain structural steels in the thermomechanical rolled condition in the grades and qualities given in Tables 2 to 4 (chemical composition) and Tables 5 to 7 (mechanical properties) in thickness ≤ 1 20 mm for flat products and in thickness ≤ 1 50 mm for long products.
In addition to EN 1 0025-1 the steels specified in this document are especially intended for use in heavily loaded parts of welded structures such as, bridges, flood gates, storage tanks, water supply tanks, etc., for service at ambient and low temperatures.
2 Normative references
The following 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.
2.1 General standards
EN 1 01 1 -2, Welding – Recommendations for welding of metallic materials – Part 2: Arc welding of ferritic steels.
EN 1 0020, Definition and classification of grades of steel.
EN 1 0025-1 :2004, Hot rolled products of structural steels – Part 1: General technical delivery conditions.
EN 1 0027-1 , Designation systems for steels – Part 1: Steel names, principal symbols.
EN 1 0027-2, Designation systems for steels – Part 2: Numerical system.
EN 1 01 63-1 , Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 1: General requirements.
EN 1 01 63-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 2: Plates and wide flats.
EN 1 01 63-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 3: Sections.
EN 1 01 64, Steel products with improved deformation properties perpendicular to the surface of the product – Technical delivery conditions.
EN 1 0221 , Surface quality classes for hot-rolled bars and rods – Technical delivery conditions.
CR 1 0260, Designation systems for steels – Additional symbols.
2.2 Standards on dimensions and tolerances (see 7.7.1)
EN 1 001 7, Non-alloy steel rod for drawing and/or cold rolling – Dimensions and tolerances.
EN 1 0024, Hot rolled taper flange I sections – Tolerances on shape and dimensions.
EN 1 0029, Hot rolled steel plates 3 mm thick or above – Tolerances on dimensions, shape and mass.
EN 1 0034, Structural steel I and H sections – Tolerances on shape and dimensions.
EN 1 0048, Hot rolled narrow steel strip – Tolerances on dimensions and shape.
EN 1 0051 , Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels – Tolerances on dimensions and shape.
EN 1 0055, Hot-rolled steel equal flange tees with radiused root and toes – Dimensions and tolerances on shape and dimensions.
EN 1 0056-1 , Structural steel equal and unequal leg angles – Part 1: Dimensions.
EN 1 0056-2, Structural steel equal and unequal leg angles – Part 2: Tolerances on shape and dimensions.
EN 1 0058, Hot rolled flat steel bars for general purposes – Dimensions and tolerances on shape and dimensions.
EN 1 0059, Hot rolled square steel bars for general purposes – Dimensions and tolerances on shape and dimensions.
EN 1 0060, Hot rolled round steel bars for general purposes – Dimensions and tolerances on shape and dimensions.
EN 1 0061 , Hot rolled hexagon steel bars for general purposes – Dimensions and tolerances on shape and dimensions.
EN 1 0067, Hot rolled bulb flats – Dimensions and tolerances on shape, dimensions and mass.
EN 1 01 62, Cold rolled steel sections – Technical delivery conditions – Dimensional and cross-sectional tolerances.
EN 1 0279, Hot rolled steel channels – Tolerances on shape and dimensions.
BS EN 10025-4:2004 – Hot rolled products of structural steels — Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels