Galvanized Steel Coil (S350GD+Z S250GD+ZF) Type: Structural Steel

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Basic Info.

Model NO.:S350GD+Z S350GD+ZF

Surface Treatment:Galvanized

Technique:Cold Rolled

Standard:ASTM,JIS,GB,AISI,DIN,Bs and Others

Steel Grade:S350gd+Z S350gd+Zf

Export Markets:Global

Additional Info.

HS Code:72104900

Production Capacity:10000tons Per Month


Product Description

Brief Introduction:

Commodity name : Hot Dipped Galvanized Steel Coil

Standard we can provide:   AISI ASTM BS DIN GB JIS 

Grade :  DC51D+Z,DC51D+ZF,St01Z,St02Z,St03Z

Zinc Coating:40g-275g/m2

Size we can provide:

Size Range:     CRC  substrate Thickness: 0.3-3.0mm

                           CRC  substrate Width:  800-1830mm

                           HRC  substrate Thickness:1.8-2.8mm

                           HRC  substrate Width:900-1500mm


Galvanized Steel Coil (S350GD+Z S250GD+ZF) Type: Structural Steel


GradeChemical composition %
CSiMnPSAltaTiNb
No more thanNo more thanNo more thanNo more thanNo more thanNo less thanNo more thanNo more than
DC51D+Z,DC51D+ZF0.1---0.50.0350.035---------
(St01Z,St02Z,St03Z)

GradeMechanical propertiesplating  adhesion

yield strengthtensile strengthn 90r 90Elongation %Plating weight(g/m 2 )
MpaMpaNo less thanNo less thanNo less thanBending diameter







 (a=thickness of slab)





L 0 =80mm b=20mm





Normal   thickness  mm





≤ 0.7>0.7≤ 140/140>140/140~>175/175
175/175
DC51D+Z(St01Z,St02Z,St03 Z), DC51D+ZF---270~500------20220a1a2a
 Exposure Test :
Salt Spray Test :
EnvironmentGIEnviroment GI Average CorrosionAL-ZN  Average Corrosion

Average corrosion

g/m2 /yμ  m/yg/m2/yum/yg/m2/yum/y
Tough Marine Climate1409.8tough Marine Climate1409.8162.2
Moderate Marine Climate181.3Modeerate Marine Climate 181.340.54
Industrial Climate201.4Industrial Climate201.44.20.57
Countryside Climate40.28Countryside Climate40.281.30.17
Plainness of hot dip galvanized substrate
A.2.1 For steel sheet with a specified minimum yield strength less than 260MPa, the maximum plainness tolerance should be in conformity with the stipulations of Table A1.
MPaNominal widthPlainness (mm) for the nominal thickness as shown below


Common precise PF.AHigh-level precision PF.B



<0.700.70~<1.601.60~3.0<0.700.70~<1.601.60~3.0
<260<12001088543

1200~<1500121010654

≥1500171515876
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa,and the grades of DC51+Z/Z  DD51D+Z /S550GD+Z/ZF), the maximum plainness tolerance should be in conformity with the stipulations of Table A2.
Table A2
MPaNominal widthPlainness (mm) for the nominal thickness as shown below


Common precise PF.AHigh-level precision PF.B



<0.700.70~<1.601.60~3.0<0.700.70~<1.601.60~3.0
260~<360<1200131010865

1200~<1500151313986

≥150020191912109
Thickness tolerance for hot dip galvanized substrate
For steel sheet with a specified minimum yield strength less than 260MPa, the maximum thickness tolerance should be in conformity with the stipulations of Table A6.
Nominal thicknessThickness tolerance while the widths are showed as follows



Common precise PT.AHigh-level precision PT.B



≤1200>1200~1500>1500≤1200>1200~1500>1500
0.30~0.40±0.04±0.05±0.06±0.030±0.035±0.040
>0.40~0.60±0.04±0.05±0.06±0.035±0.040±0.045
>0.60~0.80±0.05±0.06±0.07±0.040±0.045±0.050
>0.80~1.00±0.06±0.07±0.08±0.045±0.050±0.060
>1.00~1.20±0.07±0.08±0.09±0.050±0.060±0.070
>1.20~1.60±0.10±0.11±0.12±0.060±0.070±0.080
>1.60~2.00±0.12±0.13±0.14±0.070±0.080±0.090
>2.00~2.50±0.14±0.15±0.16±0.090±0.100±0.110
>2.50~3.00±0.17±0.17±0.18±0.110±0.120±0.130
For steel sheet and steel strip with a specified minimum yield strength not less than 260MPa but less than 360MPa, the thickness tolerance should be in conformity with the stipulations of Table A7. 
Nominal thicknessThickness tolerance while the widths are showed as follows


Common precise PT.AHigh-level precision PT.B


≤1200>1200~1500>1500≤1200>1200~1500>1500
0.30~0.40±0.05±0.06±0.07±0.035±0.040±0.045
>0.40~0.60±0.05±0.06±0.07±0.040±0.045±0.050
>0.60~0.80±0.06±0.07±0.08±0.045±0.050±0.060
>0.80~1.00±0.07±0.08±0.09±0.050±0.060±0.070
>1.00~1.20±0.08±0.09±0.11±0.060±0.070±0.080
>1.20~1.60±0.11±0.13±0.14±0.070±0.080±0.090
>1.60~2.00±0.14±0.15±0.16±0.080±0.090±0.110
>2.00~2.50±0.16±0.17±0.18±0.110±0.120±0.130
>2.50~3.00±0.19±0.20±0.20±0.130±0.140±0.150
For steel sheet and steel strip with a specified minimum yield strength not less than 360MPa, but less than or equal to 420 MPa, the thickness tolerance should be in conformity with the stipulations of Table A8.
Nominal thicknessThickness tolerance while the widths are showed as follows



Common precise PT.AHigh-level precision PT.B



≤1200>1200~1500>1500≤1200>1200~1500>1500
0.30~0.40±0.05±0.06±0.07±0.040±0.045±0.050
>0.40~0.60±0.06±0.07±0.08±0.045±0.050±0.060
>0.60~0.80±0.07±0.08±0.09±0.050±0.060±0.070
>0.80~1.00±0.08±0.09±0.11±0.060±0.070±0.080
>1.00~1.20±0.10±0.11±0.12±0.070±0.080±0.090
>1.20~1.60±0.13±0.14±0.16±0.080±0.090±0.110
>1.60~2.00±0.16±0.17±0.19±0.090±0.110±0.120
>2.00~2.50±0.18±0.20±0.21±0.120±0.130±0.140
>2.50~3.00±0.22±0.22±0.23±0.140±0.150±0.160
For steel sheet and steel strip with a specified minimum yield strength not less than 420MPa, but less than or equal to 900 MPa, the thickness tolerance should be in conformity with the stipulations of Table A9.
Nominal thicknessThickness tolerance while the widths are showed as follows



Common precise PT.AHigh-level precision PT.B



≤1200>1200~1500>1500≤1200>1200~1500>1500
0.30~0.40±0.06±0.07±0.08±0.045±0.050±0.060
>0.40~0.60±0.06±0.08±0.09±0.050±0.060±0.070
>0.60~0.80±0.07±0.09±0.11±0.060±0.070±0.080
>0.80~1.00±0.09±0.11±0.12±0.070±0.080±0.090
>1.00~1.20±0.11±0.13±0.14±0.080±0.090±0.110
>1.20~1.60±0.15±0.16±0.18±0.090±0.110±0.120
>1.60~2.00±0.18±0.19±0.21±0.110±0.120±0.140
>2.00~2.50±0.21±0.22±0.24±0.140±0.150±0.170
>2.50~3.00±0.24±0.25±0.26±0.170±0.180±0.190
Width tolerance
Nominal widthWidth toleranceWidth 














FAQ

1.What's your MOQ?
25MT, it is for one container.
2.Do you have QC teams?
 Yeah, sure, our QC team is very important, they will keep the quality control for our products.
3. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness  and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.
4.Are the products tested before shipping?
Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.


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Q:In the warehouse management system of steel coil
Warehouse is an important component of enterprise material supply system. It is also the tache of enterprise material circulation and storage, and it also undertakes many functions of material management. Its main tasks are to keep the stock well, to be accurate, to be of good quality, to ensure safety, to prompt the people, to produce, to be considerate, to reduce costs, and to speed up capital turnover.
Q:Can cold rolled galvanized steel coils be acid washed after oxidation?
Rolling at room temperature is generally understood as cold rolling, from a metallurgical point of view, below the rolling temperature at which the roll is rolled
Q:What are the characteristics of hot-rolled steel coils and cold rolled steel coils? What loading and unloading tools should be used? What items should be paid attention to?
Steel is usually stable in performance. One thing is that the environment should be dry, not rain, because the damp environment is easy to rust. As long as it's in a dry room, it's basically no problem.
Q:Steel coil from vertical to horizontal, what sling needs?
Consider using the function with hydraulic prop hanging clamp from the coil center will hold tight after hanging up, then put in a L type hydraulic turnover device platform or unilateral double column loading platform, then L platform can realize 90 degrees down, vertical horizontal variable.
Q:The difference between aluminized color steel roll and ordinary color steel roll
Aluminized color coated sheet is a new type of material produced in China in recent years due to its high end applications. It is often used as an indication of CCLI. It is made of galvanized steel sheet (55% aluminum, 43% zinc and 1.6% silicon), which is more galvanized and more corrosion resistant. It is processed by surface degreasing, phosphating and complexing treatment, and is coated with organic coating.
Q:What is the maximum width of galvanized steel strip, please? The galvanized coat is 275, and how long is one coil?
As far as I know, the galvanized rolls of WISCO are wider in width than other domestic steel mills, and can produce 2080 wide steel coils.
Q:How to solve steel plate storage
According to the principle of "first in first out" to carry out the turnover, organize the logistics, reduce the large amount of moving plate, reasonable arrangement, easy to steel coil into the use of state.
Q:Is a steel plate the same as a steel coil?
You must have an open book and a flat plate, and it is a little bit harder to cut the parts than the plate.
Q:Where are the coils and the steel plates used? Where did the steel plate come from?
Steel coil is a kind of steel plate, also known as coil.The coil, like toilet paper, can roll into a barrel. (describe not very appropriate)When the coil is used, it is necessary to use the Kaiping machine to expand into a flat plate.
Q:Why can hot rolled coils be placed outside?
Because hot-rolled steel coils are generally used as raw material for semi-finished products, they have to be further used for pickling and cold rolling to make more use. The rust and dust can be removed after pickling

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