AISI 9260

AISI 9260 is a silicon manganese spring steel used widely for the production of leaf springs

Analysis

Element  %
C  0.56-0.64
Mn  0.75-1.00
P  0.035 (max)
S  0.04 (max)
Si  1.80-2.20

Related specifications include EN45 and BS970 250A53

BSS Stock a range of EN45 flat bars which can be seen here