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  • Users: twim
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  1. twim

    Different standards for the same steel

    BS4 deals with section sizes, EN 10056 deals with tolerances. Material standards are now EN 10025 or EN 10113 the old grade 43 is now grade 275 (275N/mm2 YS) the old grade 50 is now grade 355 (355N/mm2YS) there is/was grade 40 now grade 235 (235N/mm2 YS) so the safest would be to assume the...

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