About us
- Experienced manufacturer and trading company
- We have 12 processing lines
- We get ISO9001,ISO14000
- Good reputation and famous trade mark
About the Coil
Product specification
Thickness range: 1.5~4.0mm
Width range: 800~1250mm
Zinc coating:40-275g/m2
Zinc coating:40-275g/m2
I.D.: 610mm
O.D.: max.2000mm, min.1200mm
Coil weight: max.25t
MOQ: 50 tons
MOQ: 50 tons
1.Our hot dip galvanizing lines, one is HR CGL with capacity of 400.000tpy,the other one is CR CGL with capacity of 300,000tpy,total capacity is 700,000tpy
2.Surface structure: skin pass mill rolled spangle, zero spangle, mini spangle, zero spangle and Zn-Fe alloy
3.Surface treatment: chrome passivation and/or oiling, chrome free passivation and/or oiling, chrome free anti-fingerprint
4.Product dimension, coil diameter, coil weight.
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Grade
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Nominal thickness (mm)
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Nominal width (mm)
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Coil I.D (mm)
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Coil. O.D (mm)
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Weight
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Common galvanizing(Z)
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0.25-1.5
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800-1250
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610 or 508
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900-2100
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coil«25
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Galvannnealing (ZF)
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0.25-1.5
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800-1250
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610 or 508
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900-2100
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coil«25
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Zn-Al (ZA)
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0.25-1.5
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800-1250
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610 or 508
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900-2100
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coil«25
|
|
Al-Zn alloy (AZ)
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0.25-1.5
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800-1250
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610 or 508
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900-2100
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coil«25
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5.Coating layer surface structure
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Surface structure
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Code
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Instruction
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Purpose
|
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Normal spangle
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N
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In common condition, zinc layer cools down and condensates into spangle after galvanizing.
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Common purpose
|
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Zero spangle
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M
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Adopt a special process to interfere solidification of coating metal to get required surface structure. In this way only tiny spangles sometimes invisible formed.
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Used in case that normal spangle cannot meet appearance requirements.
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Zn-Fe alloy
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ZF
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Adopt heat treatment to make steel diffuse into zinc coating to get required structure, which is in uniform dark grey and without luster.
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Suitable for painting.
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Skin pass mill rolled
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SP
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Coating structure after rolled by skin pass mill, it has no metallic luster which is benefit for improving appearance or decoration painting.
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Used in case to satisfy high requirement of surface quality, also can be used for base metal of color coating
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6.Coating weight
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Surface structure
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Coating grade
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Double sides coating weight, min, g/m2
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Coating weight theoretical reference value, single point per side (µm)
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Density g/m2
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||
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Three point test
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Single-point test
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Typical value
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Range
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|||
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Pure zinc coating(Z)
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Z100
|
100
|
85
|
7
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5-12
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7.1
|
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Z140
|
140
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120
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10
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7-15
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||
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Z200
|
200
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170
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14
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10-20
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||
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Z225
|
225
|
195
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16
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11-22
|
||
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Z275
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275
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235
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20
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15-27
|
||
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Z450
|
450
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385
|
32
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24-42
|
||
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Z600
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600
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510
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42
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32-55
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||
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Zn-Fe alloy coating (ZF)
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ZF100
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100
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85
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7
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5-12
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7.1
|
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ZF120
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120
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100
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8
|
6-13
|
||
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ZF140
|
140
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120
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10
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7-15
|
||
7.Product property
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Grade
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Tensile test
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r90
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n90
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Coating adhesiveness
|
||||
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Rel Mpa
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Rm Mpa
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A80mm% min
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Bending diameter (a=strip thickness) of different coating weight (g/m2)
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|||||
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«140/140
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>140/140~ «175/175
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>175/175
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||||||
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DX51D+Z DX51D+ZF
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270~500
|
22
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d=0
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d=a
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d=2a
|
|||
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DX51D+Z DX51D+ZF
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140~300
|
270~420
|
26
|
|||||
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DX53D+Z DX53D+ZF
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140~260
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270~380
|
30
|
|||||
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DX54D+Z
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120~220
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260~350
|
36
|
1.6
|
0.18
|
|||
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DX54D+ZF
|
34
|
1.4
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0.18
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|||||