Cold Rolled Steel Sheet Wholesale from China Factory

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
1000 m.t./month

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Item specifice:

Grade: 1000 Series,3000 Series,4000 Series,5000 Series,6000 Series,7000 Series,2000 Series Surface Treatment: Coated,Embossed,Anodized,Polished,Mill Finish,Color Coated,Oxidized,Enameled Wire,Brushed,Printed,Composited,Holographic Impression,Sand Blasted,Powder Coating Shape: Angle,Square,T-Profile,Round,Flat,Rectangular,Oval,Hexagonal
Temper: T3-T8,O-H112,T351-T651,T351-T851,Soft,Half Hard,Hard Application: Liner & Wad,Decorations,Door & Window,Heat Sink,Transportation Tools,Glass Wall,Food,Kitchen Use,Pharmaceutical,Seal & Closure,Insulation Material,Label & Tag

Product Description:

Product Description:

Hot rolled coils/plates 
Type: steel coil and steel plates 
Material: SS400-Q235-Q345-SPHC 
Width:1250mm 1500mm 1800mm 2000mm

 

HOT-ROLLED COIL/PLATES(Material: SS400-Q235A/B-SPHC)

2.00*1250/1500L

3.50*1250/1500L

5.75*1250/1500L

11.50*1250/1500L

2.30*1250/1500L

3.75*1250/1500L

7.50*1250/1500L

11.75*1250/1500L

2.50*1250/1500L

4.50*1250/1500L

7.75*1250/1500L

13.50*1250/1500L

2.75*1250/1500L

4.75*1250/1500L

9.50*1250/1500L


3.00*1250/1500L

5.50*1250/1500L

9.75*1250/1500L


 

PATTERN-ROLLED COIL/PLATES(Material: Q235A-Q235B)

3.00*1250L

3.75*1250L

4.75*1250L

5.75*1250L

3.50*1250L

4.50*1250L

5.50*1250L

7.50*1250L

 

MIDDEL-PLATE(Material: Q235A/B-Q345A/B)

8*1800/2000L

16*1800/2000L

25*1800/2000L

45*1800/2000L

10*1800/2000L

18*1800/2000L

30*1800/2000L

50*1800/2000L

12*1800/2000L

20*1800/2000L

35*1800/2000L


14*1800/2000L

221800/2000L

401800/2000L


 

Name

galvanized steel coil dx52d z gi

Grade

GB/T-12754: 2006, JIS3302, EN 10142, ASTM A653, JIS G3302, 

SGCC/SGCH, GB/T2518, European Standard, ASTM A792, JIS G3321, JIS G3317

BASE PLATE

Cold rolled steel sheet, hot dipped zinc coated steel sheet

hot dipped A-Z coated steel sheet

EQUIPMENT

Double coating double baking; 

CAPACITY

5000Mt/week

SIZE

Thickness 0.18mm2mm, width 40mm1250mm

ZINC COATING

40g-275g /m2

PAINT THICKNESS

Top:20+-5um, back:5-7um 

COIL WGT

3Mt - 8Mt

COIL ID

φ508mm,φ610mm

BASE SHEET

Cold rolled steel sheet, hot dipped zinc coated steel sheet 

(small, regular or zero spangle), 

hot dipped A-Z coated steel sheet

SURFACE PAINT

EP, PE, HDP, SMP, PVDF

COLOR SERIES

 RAL color number series

Applications of cold rolled steel sheet coil :

1) Automotive bodies: filters, fuel tanks, etc.

2) Construction materials: roofings, welding pipes,

3) Electric and electronic appliances: computer cans, etc.

4) Steel cans: containers, etc.

5) Steel furniture: washing machines, refrigerators, microwaves, etc.

6) Drums

7) Office equipment: printer, recorders, etc.

8) Motors and transformers

 

 

Process of cold rolled steel sheet coil  :

Pay off reel-double cut shear-welder-notcher-entry accumulator-pre cleaning section-furnace-hot bridle-zinc pot-air knife-after cooler-water quench-dryer- skin pass mill-dryer-tension leveler-dryer-chemical coater-chemical oven-cooler-exit accumulator-oiler-exit shear-tension reel.

 

 

Features of cold rolled steel sheet coil  :

1) cold rolled steel coils prices is manufactured to have a long durability, strong corrosion resistance and shiny surface.

2) cold rolled steel coils prices features excellent forming properties, paintability, weldability, and is suitable for fabrication by forming, pressing and bending.

 

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Cold Rolled Steel Sheet Wholesale from China Factory

Cold Rolled Steel Sheet Wholesale from China Factory

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FAQ:

1.Q: What about leadtime ?

   A: Normally the leadtime is 60days after we receive the deposit and confirm  the details. All the press machines we use is the best quality in China Yangli brand. The press machine leadtime from Yangli is 50days,  the best leadtime we can give is 60days. 

 

2.Q: What's the lead time for moulds?

   A: Normally the mould leadtime is 45 days after we confirm all the details with customer. Our professional mechanical enginners from Austria will design the mould according to the samples from customer, or by the specifications offered by customers.    

 

3.Q:What kinds of mould you can make? and what is your strong point for the moulds?

   A: we can make wrinkle wall mould and smooth wall mould both. For wrinkle wall mould we can make, 79" pan, fish pan, bbq pan. For smooth wall mould we can make muffin cup, and cake cup, tar cup,etc. We can also make 2 or 3 portion conatiner moulds as long as you offer us sample or specifications.  Our strong points are all our moulds are WEDMLS cut, which makes the mould more accurate and precise. Important materials likestainless steel parts we make in Austria. We also recut after heat treatment, which most of makers do not take this process.


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Q:why does aluminum sheet not react with sulfuric acid nut react with hydrochloric acid?
aluminum reacts with hydrochloric acid,generating aluminium chloride which can dissolve in water. but aluminum reacts with sulfuric acid, generating aluminum sulfate which can't dissolve in water and will generate aluminum sulfate, a layer of protective film, preventing aluminum from reacting with sulfuric acid, so there is no significant phenomena.
Q:how to avoid oxidation of aluminum sheet after wire drawing?
leave it alone after wire drawing!aluminum sheet will formulate a layer of dense oxide film. So you don't need to worry about it! Don't often polish the aluminum wire, or they will be more and more slimsy, the oxide film is used for avoiding reoxidation.
Q:how to make aluminum products bright? How to polish or clean the products punch formed by 0.3mm aluminum sheet?
you can try to grind it with magnetic grinder.
Q:Who knows the ceiling size of aluminum hang-parcel?
General size of aluminum hang-parcel: 100mm、150mm、200mm、250mm, you can order the length according to your actual demands. General color of aluminum hang-parcel: white, black, blue, pearl white, bianco canopus, etc. you can order the color according to your actual demands. General thickness of aluminum hang-parcel: 0.4mm、0.5、0.6、0.7、0.8mm, you can order the thickness according to your actual demands.
Q:what will happen when aluminum sheet is put into copper chloride solution?
the chemical equation of the reaction, 2Al+3CuCl2=2AlCl3+3Cu, the phenomena when aluminum sheet is put into copper chloride solution: there is red solid generating on the surface of aluminum sheet.
Q:why does the hardness of 2024 aluminum sheet not increase but decrease after thermal treatment?
The hardness of 2024 aluminum sheet will decrease after thermal treatment(solution treatment), and it will increase after aging treatment.
Q:who knows the ceiling technology of aluminum sheet?
Construction technology of ceiling aluminum sheet: (1) firstly check keel’s quality, the straight shape and uniformly forced state of boom, control the keel’s gap within 500mm, reduce the gap according to design requirement under humid environment. The lower surface of keel is smooth without a sense of bearing down, main device is closely connected with accessories, it can be bound after being confirmed qualified.(2) we should break the board along the cutting line and ensure the margin of cutting board straight and square without any chipping or arris defect. (3) while placing and fixing the board, we can place edge of aluminum-plastic panel(encapsulated edge) in the vertical direction of supporting keel, there is a phenomena of hanging. Aluminum-plastic panel should be placed closely in the process of butt joint, it can’t be pressed. You can start from a plate angle or middle position, and don’t place them at the same time. Slab joint should be straight and in the same width, without break joint. (4) in the process of joint, Aluminum-plastic panel should be placed closely in the process of butt joint, it can’t be pressed. And the butt joint should be stagger, the butt joint can’t be connected on the same keel. When you use doubling plate, the joints of the second layer board and the first layer board can’t be connected with the same keel, double-deck gypsum board should be staggered joints.
Q:How could two pieces of aluminium flakes be welded together?
its welding strength is very high. you can use the following methods to weld two pieces of aluminum sheets together: 1, strict deformation control requirement. 3, it can prevent some flux remnant during welding. 3,the welding wire welding of low temperature M51 and M51-F is operated under 179︒C.or they are welded in the situation of being especially thin.4, it can solve the welding of 3 series aluminium alloys and casting, and its welding temperature is 380-400︒C.its advantage is that you don't need any flux during welding. WE53 low temperature aluminium welding wire has a high affinity in welding 7 series aluminium alloys. and Q303 low temperature aluminum welding wire has a high affinity for the welding of 1 series aluminium alloys, die casting or 6 series welding materials.
Q:Could copper wire be welded with aluminum sheet?
Copper wire could be welded with aluminum sheet, and it needs to use low temperature welding method, if copper wire is in the unit of millimeter and aluminum sheet is also in the unit below 1 mm, you can use electric soldering iron to heat it as hybrid welding and choose low temperature welding materials, you can use WEWELDING M51 welding wire and M51-F flux to complete welding. As for the large aluminum sheet, you can take liquefied gas multihole lance as heat source, then choose the same low temperature materials as welding materials, you can use WEWELDING M51 welding wire and M51-F flux to complete welding. Welding fundamentals of these two welding methods: both of them are use heatable heat source to heat the matrix to 179 degree, the melting point of WEWELDING M51, then use matrix’s heat conduction to melt welding wire, completing welding. The process of melting welding wire is the process of smearing the welding wire with flux into welding area, melting welding wire completely depends on matrix’s heat conduction.
Q:why could aluminum pot be repaired by knocking the aluminum sheet into the pot but not being bonded by glue?
the oxidation rate of aluminum's surface is very quick, so we cann't use the method of tin welding, and the cost of argon arc welding is very high,so aluminum pot's repair usually uses riveting. aluminum has low hardness and good ductility, so it can be repaired by tightly knocking, without the bonding of glue. general glue will decomposed in open fire, if we bond pot by glue, the pot after repair won't be able to endure high temperature.

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