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H220PD+Z, H220PD+ZF Hot-dip galvanized steel

2014/5/6 1:23:59

H220PD+Z, H220PD+ZF Hot-dip galvanized steel

H220PD+Z, H220PD+ZF is a kind of high strength steel added P content under the standard Q/BQB 420-2003 and it is used for cold forming. The figure 220 means the minimum yield strength is 220Mpa for the grade H220PD+Z, H220PD+ZF.
H220PD+Z, H220PD+ZF Chemical composition:


Grade

Chemical composition %

C
max

Si
max

Mn
max

P
max

S
max

Alt
min

Tib
max

Nb
max

H220PD+Z, H220PD+ZF

0.08

0.5

0.7

0.08

0.025

0.015

-

-

H220PD+Z, H220PD+ZF Mechanical Property:


Grade

Tensile Strength
(Mpa)

Yield Strength
(Mpa)

n90

r90

BHb

Elongation% min

The coating adhesion
(The heart bending diameter ) a=thickness

min

min

Mpa

(Lo=80mm b=20mm)

<1.5

1.5-3.0

H220PD+Z, H220PD+ZF

340-420

220-320

0.15

1.3

-

32

1a

1a

a: For alloy hot dipped product, the elongation minimum value can reduce 2%, r90 can reduce 0.2.
b, BH value refers to puting the sample through 2% prestrain on the temperature 170C 土5C, keeping 20 minutes, then doing tensile test under the indoor temperature, the added value of measured yield strength compared with the stress at the time of the sample 2% prestrain.
c: When coating weight of the two sides is more than 180g/m2, the bending diameter adds to 1a; For difference thick coating products, thick coating surface as the outer surface of the bending test.

Bebon international company is a professional H220PD+Z, H220PD+ZF hot dipped galvanized steel supplier, and manufacturer, if you need H220PD+Z, H220PD+ZF hot dipped galvanized steel price, please feel free to contact us. We will offer you the most professional service of hot dipped galvanized steel.

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