BS EN 2157-1:1993 Steel. Forging stock and forgings. Technical specifications - Part 1. General requirements
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This standard defines the general requirements for the manufacture, inspection and testing of forging stock, hand forgings 1) including forged blocks and rings 1), die forgings and rolled rings in steel. The specific requirements are defined in EN 2157-2 and EN 2157-3.
The three standards EN 2157-1, EN 2157-2 and EN 2157-3 define the inspection level and the sampling frequency to be applied unless otherwise specified on the drawing, order or inspection schedule.
For aerospace purposes this standard shall be applied in conjunction with EN material standards unless otherwise specified on the drawing, order or inspection schedule.
By agreement between the manufacturer and the purchaser, this standard can also be applied to other materials and conditions of supply not covered by EN material standards. This agreement shall be formalized by reference to this standard on the drawing, order or inspection schedule.
