Cold rolled high yeld strength steels for cold forming

The tables hereunder show the main characteristics of the relevant quality grades and do not fulfill the complete technical supply conditions for which we refer to the full content of the standards mentioned in these pages.

Supply technical delivery conditions: 
EN 10268:2006
Dimensional and shape tolerances: 
EN 10131:2006
Mechanical characteristics: 
QUALITY MECHANICAL CHARACTERISTICS
Ys/
0,2% Ps
(Mpa)
TS
(Mpa)
E%
min.
L0=80 mm
E%
min.
L0=80 mm
Thickness (S) S<=3,0 S<=3,0 0,5<S<=0,7 0,7<S<=3,0
HC260LA 260 - 330 350 - 430 24 26
HC300LA 300 - 380 380 - 480 21 23
HC340LA 340 - 420 410 - 510 19 21
HC380LA 380 - 480 440 - 560 17 19
HC420LA 420 - 520 470 - 590 15 17

The values are referred to specimens taken crosswise respect to the rolling direction.

Ladle analysis chemical composition (% values): 
QUALITY LADLE CHEMICAL COMPOSITION (Valori %)
C
max
Mn
max
Si
max
P
max
S
max
Al
min
Ti
max
V
max
Nb
max
Mo
max
B
max
HC260LA 0,1 0,6   0,5  0,025 0,025 0,015 0,15 (*)     -        -    (*)
HC300LA 0,1 1,0 0,5 0,025 0,025 0,015 0,15 (*) 0,09     -    (*)
HC340LA 0,1 1,1 0,5 0,025 0,025 0,015 0,15 (*) 0,09     -    (*)
HC380LA 0,1 1,6 0,5 0,025 0,025 0,015 0,15 (*) 0,09     -    (*)
HC420LA 0,1 1,6  0,5 0,025 0,025 0,015 0,15  (*) 0,09     -    (*)

(*) Vanadium and Boron are allowed. However the content of all the 4 elements Ti, V, Nb, B shall not exceed 0,22%.

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