4340

AISI: 4340
Specifications
 
AMS 6415
MIL-S-5000
BS 2 S 149
 
 
Steel properties
 
Low alloy Ni Cr Mo steel capable of being
heat treated to high strength levels. This alloy has a good
combination of ductility, toughness and strength along with high
hardenability.
 
 
Applications
 
Screws and bolts for aerospace, security
fasteners.
 
 
Size range
available or from
European central stock, short delivery time
Product designation Ø (min. →
max.)
mm
Cold heading
wire, hot rolled, drawn, annealed, pickled, phosphated,
redrawn
spools : 100 kg
3.58 → 9.68