Back (Fe-Base)

1.5511 | 35B2 +AR

Numeric designation1.5511
Chemical designation35B2
State+AR (weichgeglüht)
Etching3% Nital

Cold heading wire is often used for the production of screws. Here it is in the initial state +AR (completely soft annealed). The microstructure consists of ferrite with moulded-in cementite.

The hardness is 210 HV 1.