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BS EN 10243-1:1999
Steel die forgings. Tolerances on dimensions. Drop and vertical press forgings (British Standard)
1.1 This European Standard specifies the dimensional tolerances for steel drop and vertical press forgings made under hammers and presses. The first part of this European Standard applies to hot forgings in the delivery condition, made in carbon and alloy steels. The tolerances specified apply to forgings not exceeding 250 kg in mass or 2 500 mm maximum dimension. Tolerances for heavier or larger forgings shall be agreed at the time of enquiry and order.
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British Standards Institution [bsi]
British Standards Institution [bsi]