
Specification for carbon steel wire for zigzag and square-form springs.
NORMA vydaná dňa 22.10.1970
Označenie normy: BS 4638:1970
Dátum vydania normy: 22.10.1970
Počet strán: 10
Približná hmotnosť: 30 g (0.07 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
Requirements for patented cold drawn plain carbon steel round wire in three grades of tensile strength. Chemical composition, standard sizes and tolerances, methods of testing, mechanical properties and details of packing and identification. Status: Confirmed