S320GD+Z, S320GD+ ZF is a kind of hot dipped galvanized steel under the standard Q/BQB 420-2003 and it is a kind of low alloy steel.
The size we can supply for it is 0.3-3.0mm thickness. The figure 320 means the minimum yield strength is 320Mpa for S320GD+Z, S320GD+ZF.
S320GD+Z, S320GD+ ZF Chemical composition:
Grade |
Chemical composition % |
|||||
|
C |
Si |
Mn |
P |
S |
Alt |
|
|
S320GD+Z, S320GD+ ZF |
0.23 |
--- |
1.00 |
0.035 |
0.035 |
0.015 |
S320GD+Z, S320GD+ ZF Mechanical Property:
STEEL GRADE |
Tensile Strength |
Yield Strength |
Elongation% min |
The coating adhesion |
|
|
min |
min |
<0.7mm |
>0.7mm |
a=thickness |
|
|
S320GD+Z, S320GD+ ZF |
390 |
320 |
15 |
17 |
3a |
a means when nominal thickness > 1.5 mm, the diameter of curved heart is 40.
Our company can supply many grades for hot dipped galvanized steels, such as S220GD+Z, S220GD+ZF, S250GD+Z, S250GD+ZF, S280GD+Z, S280GD+ZF, S320GD+Z, S320GD+ZF and so on. If you have need for them , please contact with us and we are very professional for them.