Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
H260PD+Z hot dip galvanized plates(coils) are featured with strong coating adhesiveness, high erosion-resistance, accurately controlled zinc coating thickness, high size precision, flat profile and good mechanical, processing and welding performance. They can be used for making outside and inside automotive plates, structural parts and reinforcements.
H260PD+Z hot dip galvanized automotive steel size:
Nominal thickness: 0.30mm~3.0mm, nominal width: 800mm~1830mm
Note: nominal thickness of a plate/strip is sum of base plate thickness and coating thickness.
H260PD+Z hot dip galvanized automotive steel mechanical performances and coating adhesiveness:
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Steel grade |
Mechanical performances |
Coating adhesiveness |
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|
Yield strength MPa |
Tensile strength MPa |
n90 |
r90 a |
BHb |
After breakage percent elongationa % |
Bending center diameter c in following nominal |
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|
L0=80mm, b=20mm |
<1.5 |
1.5~3.0 |
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H260PD+Z |
260~320 |
260~320 |
- |
- |
30 |
28 |
2a |
2a |
for alloyed hot-dip galvanized products, the allowable reduction of min. Percent elongation and r90 specified can be respectively by 2% and 0.2.
BH refers to the increment of tested y2 170°c±5℃ for 20 minutes
In case the total weight of two coating sides is larger than 180g/m², the bending center diameter will increase by 1a; for differential coated products, the thicker coating is used as outside surface in bending test.
H260PD+Z hot dip galvanized automotive steel coating weight range:
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|
Applicable surface structure |
Weight range of following coatings a g/m |
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|
Zinc coating |
Zn-Fe alloy coating |
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|
Equally coating |
Z, X, G, GX, N, R |
40/40~225/225 |
30/30~90/90 |
|
Differential coating b |
N, R |
30~150(each side) |
- |
|
a. 50 g/m coating weight is equivalent to about 7.1 m. |
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H260PD+Z hot dip galvanized automotive steel surface treatment:
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|
Chromate treatment is a treatment with an aim to prevent white rusts formed on product surfaces during transportation and storage. |
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2 Oiling (Y) |
Oiling is to prevent white rusts formed on product surfaces during transportation and storage. |
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3 Chromate treatment + oiling (LY) |
This treatment with oiling after surface chromate treatment is to further avoid the forming of white rusts. |
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