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S250GD+Z, S250GD+ZF Hot-dip galvanized steel

2014/4/30 0:27:54

S250GD+Z, S250GD+ZF Hot-dip galvanized steel

S250GD+Z, S250GD+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 some with the grade S220GD+Z, S220GD+ZF.
The figure 250 in the grade S250GD+Z, S250GD+ZF means the minimum yield strength is 250Mpa.
S250GD+Z, S250GD+ZF Chemical composition:


Grade

Chemical composition %

C
max

Si
max

Mn
max

P
max

S
max

Alt
min

S250GD+Z, S250GD+ZF

0.16

---

0.6

0.035

0.035

0.015

 
S250GD+Z, S250GD+ZF Mechanical Property:


STEEL GRADE

Tensile Strength
(Mpa)

Yield Strength
(Mpa)

Elongation% min
(Lo=80mm b=20mm)

The coating adhesion
(The heart bending diameter )

min

min

<0.7mm

>0.7mm

a=thickness

S250GD+Z, S250GD+ZF

330

250

17

19

1a

a means when nominal thickness > 1.5 mm, the diameter of curved heart is 40.

BEBON can produce S250GD+Z, S250GD+ZF steel plate, steel coil and steel strip with professional production experience, strict control S250GD+Z, S250GD+ZF chemical composition and S250GD+Z, S250GD+ZF mechanical properties. From casting, forging, steel to hot and cold rolling process, heat treatment, etc, BEBON have the control of professional engineers. BEBON have advanced precision machining equipment, according to the requirements of users machining in order to achieve the most satisfied with the user requirements.

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