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Information On British Standard Steels BS EN 10149

Important Notes:
All information on this page has been interpreted from the relevent standards, books, other web sites, andl leaflets. This information is of a general nature for initial guidance.    Selection of materials for design use must be by communication with the suppliers and by reference to the relevant standards.
The tables below include for composition , proof strength , tensile strength and elongation.    The mechanical properties are generally related to room temperature     The information is not comprehensive and must be used with extreme care.    The relevant standards include detailed notes on the conditions relevant to the properties and also a large quantity of detail information on other properties including hardness values impact values and properties at higher and lower temperatures

BS ISO 10149 Part 2..... BS ISO 10149 Part 3.....

Notation A = % elongation at fracture R eH = Upper Yield Strength ( MPa ) R p0,2 = 0,2 % proof strength ( MPa ) R m = Tensile strength ( MPa ) HV = Hardness value (Vickers) t = Product thickness for specified properties ( mm) +N = normalised +NT = normalised and tempered +QT = quenched and tempered BS EN 10149-2:1996: Specification for Hot-rolled flat products made of high yield strength steels for cold forming- Delivery conditions for thermomechanically rolled steels Product Chemical composition Name Number C max Mn max Si max P max S max Al,br />total-min Nb max V max Ti max Mo max B max % % % % % % % % % % % S315MC 1.0972 0,12 1,3 0,5 0,025 0,02 0,015 0,09 0,2 0,15 - - S355MC 1.0976 0,12 1,5 0,5 0,025 0,02 0,015 0,09 0,2 0,15 - - S420MC 1.0980 0,12 1,6 0,5 0,025 0,015 0,015 0,09 0,2 0,15 - - S460MC 1.0982 0,12 1,6 0,5 0,025 0,015 0,015 0,09 0,2 0,15 - - S500MC 1.0984 0,12 1,7 0,5 0,025 0,015 0,015 0,09 0,2 0,15 - - S550MC 1.0986 0,12 1,8 0,5 0,025 0,015 0,015 0,09 0,2 0,15 - - S600MC 1.8969 0,12 1,9 0,5 0,025 0,015 0,015 0,09 0,2 0,22 0,5 0,005 S650MC 1.8976 0,12 2,0 0,5 0,025 0,015 0,015 0,09 0,2 0,22 0,5 0,005 S700MC 1.8974 0,12 2,1 0,6 0,025 0,015 0,015 0,09 0,2 0,22 0,5 0,005 Product Mechanical Properties Name Number R eH Rm A (%) MPa MPa < 3mm => 3mm S315MC 1.0972 315 390-510 20 24 S355MC 1.0976 355 430-550 19 23 S420MC 1.0980 420 480-620 16 19 S460MC 1.0982 460 520-670 14 17 S500MC 1.0984 500 550-700 12 14 S550MC 1.0986 550 600-760 12 14 S600MC 1.8969 600 650-820 11 13 S650MC 1.8976 650 700-880 10 12 S700MC 1.8974 700 750-950 10 12 BS EN 10149-3:1996: Specification for Hot-rolled flat products made of high yield strength steels for cold forming- Delivery conditions for normalized or normalized rolled steels Product Chemical composition Name Number C max Mn max Si max P max S max Al total-min. Nb max V max Ti max % % % % % % % % % S200NC 1.0971 0,16 1,2 0,5 0,025 0,02 0,015 0,09 0,10 0,15 S315NC 1.0973 0,16 1,4 0,5 0,025 0,02 0,015 0,09 0,10 0,15 S355NC 1.0977 0,18 1,6 0,5 0,025 0,015 0,015 0,09 0,10 0,15 S420NC 1.0981 0,20 1,6 0,5 0,025 0,015 0,015 0,09 0,10 0,15 Product Mechanical Properties Name Number R eH Rm A (%) N/mm2 N/mm2 < 3mm => 3mm S260NC 1.0971 260 370-490 24 30 S315NC 1.0973 315 430-550 22 27 S355NC 1.0977 355 470-610 20 25 S420NC 1.0981 420 530-670 18 23

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