Multiphase steels for cold forming (hot rolled products) HDT450F, HDT580F,…
Chemical composition
Grade
Symbols for the types of
Chemical composition % by mass
available coatings
C
Si
Mn
P
S
Altotal
max.
max.
max.
max.
max.
Ferritic-balnitlc steels(F)
HDT450F
+Z,+ZF,+ZM
0.18
0.5
2
0.05
0.01
0.015 to 2.0
HDT580F
0.18
0.5
2
0.05
0.01
0.015 to 2.0
Dual-phase steel(X)
HDT580X
+Z,+ZF,+ZM
0.14
1
2.2
0.085
0.015
0.015 to 1.0
Complex-phase steels(C)
HDT750C
+Z,+ZF,+ZM
0.18
0.8
2.2
0.08
0.015
0.015 to 2.0
HDT760C
0.18
1
2.5
0.08
0.015
0.015 to 2.0
HDT950C
0.25
0.8
2.7
0.08
0.015
0.015 to 2.0
Mechanical properties
Steel grade +Z,+ZF,+ZM
Proof strength
Tensile strength(min)
Elongation(min)
MPa
MPa
%
Ferritic-bainitic steels (F)
HDT450F
300 to 420
450
24
HDT580F
460 to 620
580
15
Dual-phase steel (X)
HDT580X
330 to 450
580
19
Complex-phase steels (C)
HDT750C
620 to 760
750
10
HDT760C
660 to 830
760
10
HDT950C
720 to 950
950
9
Grades of steel supplied
EN 10346-HDT450F-Z
EN 10346-HDT750C-Z
EN 10346-HDT450F-ZF
EN 10346-HDT750C-ZF
EN 10346-HDT450F-ZM
EN 10346-HDT750C-ZM
EN 10346-HDT580F-Z
EN 10346-HDT760C-Z
EN 10346-HDT580F-ZF
EN 10346-HDT760C-ZF
EN 10346-HDT580F-ZM
EN 10346-HDT760C-ZM
EN 10346-HDT580X-Z
EN 10346-HDT950C-Z
EN 10346-HDT580X-ZF
EN 10346-HDT950C-ZF
EN 10346-HDT580X-ZM
EN 10346-HDT950C-ZM
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