

H220YD+Z, H220YD+ZF is a kind of hot dipped galvanized  steel under the standard Q/BQB 420-2003 and it is a kind of ultra-low carbon high strength steel. The products  are widely used in the automotive, appliance, construction, machinery  manufacturing and other industries.
H220YD+Z, H220YD+ZF Chemical composition:
| Grade | Chemical composition % | |||||||
| C | Si | Mn | P | S | Alt | Tib | Nb | |
| H220YD+Z, H220YD+ZF | 0.01 | 0.1 | 0.9 | 0.08 | 0.025 | 0.02 | 0.12 | - | 
H220YD+Z, H220YD+ZF Mechanical Property:
| Grade | Tensile    Strength | Yield    Strength | n90 | r90 | BHb | Elongation% min | The    coating adhesion | |
| min | min | Mpa | (Lo=80mm b=20mm) | <1.5 | 1.5-3.0 | |||
| H220YD+Z, H220YD+ZF | 340-410 | 220-280 | 0.17 | 1.5 | - | 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 is very professional  in the production for that material and we have our own factory. We can supply  it according to customer’s requirement. 
If you have need for H220YD+Z,  H220YD+ZF, please contact with us.