Cold Rolled Steel Sheets Wholesale from CNBM China

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China main port
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TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
1000 m.t./month

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Item specifice:

Grade: 1000 Series,2000 Series,3000 Series,4000 Series,5000 Series,6000 Series,7000 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: Decorations,Door & Window,Heat Sink,Transportation Tools,Glass Wall,Food,Kitchen Use,Pharmaceutical,Seal & Closure,Insulation Material,Label & Tag,Liner & Wad

Product Description:

Product Description:

 

General Information of Cold Rolled Steel Sheet

 

The raw material of cold rolled steel sheet is high quality hot rolled product, and after pickling, continuous rolling, degreasing, annealing, skin pass, slitting and cut to length line etc. Along with it many kinds of new technology and new process of global cold rolling production have been applied. Therefore the quality of the goods could be guaranteed. The finished product has a variety of excellent capabilities, such as processing capability and smooth, flat surface. It’s widely used in outdoor and interior decoration, furnishing manufacturing, home appliance, automobile etc.

 

 

Specifications of Cold Rolled Steel Sheet

 

1) Grade: SPCC, SPCD, SPCE, DC01-06, St12, Super deep drawing

 

2) Standard: JIS G3141-1996, EN 10131-2006, DIN EN 1002

 

3) Thickness: 0.20mm - 3.0mm

 

4) Width: 600/1000/1250/1500 (mm) or per customer's request

 

 

Package of Cold Rolled Steel Sheet

 

Strapped with min three strapping strips, covered by anti-water paper and plastic film, fixed on the iron or wooden pallets by strapping strips and covered by plastic bag to prevent damage from transportation.

 

 

Applications of Cold Rolled Steel Sheet

 

1) For the further producing of hot dip galvanized steel products

 

2) Cold rolled Steel: Auto manufacture, Oil drum, Transformer's tank panel, Furniture etc.

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Cold Rolled Steel Sheets Wholesale from CNBM China

Cold Rolled Steel Sheets Wholesale from CNBM China

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Q:could aluminum sheet be attracted by magnet?
no, it couldn't.
Q:what kind of abradant should be used in the deburring of aluminum sheets? How to grind?
you can use deburring brush,grinding fluid,abrasive powder and other consumables.
Q:how to distinguish the physical property of copper sheet from the one of aluminum sheet?
physical property: copper sheet: golden, heavy, aluminum sheet: white, light.
Q:Which kind of glue can bond two pieces of aluminum sheets?
glass sealant
Q:Could ring-pull can be transformed as aluminum sheet?
Ring-pull cans will be reused after recycle, there are parts of ring-pull cans be transformed as aluminum sheet.
Q:How to solve the loose bonding of aluminum sheet and silica gel?
you can use YH-840 to bond silica gel and aluminum sheet in small area, and it’s hard to tear and will have an effect of destruction and melting, transparent and environmental.
Q:what's the temperature tolerance of aluminum sheets?
aluminum is a kind of silver white metal,melting point:660.4℃, boiling point: 2467℃,density: 2.70 g/cm³,very light, about 1/4 of iron's density.it has low hardness and good ductility, which makes it suitable for being pulled into threadlets or pressed into aluminum foils, and the later is usually used for packaging candy and cigarette. it has good electrical and temperature conductivity. it's used for the manufacture of electric wire and cable in electric power industry, and for the manufacture of cooker in daily life.combined with the magnesium , copper,zinc,tin,manganese,chromium,zirconium,silicon and other elments,it can formulate various alloys that is broadly used for the manufacture of airplane,car,ship, materials of daily living equipment and the doors and windows of construction industry.aluminum is one of the best reflectors of heat and light, so it is used as thermal insulation material and the manufacture of reflecting mirror in the reflecting telescope.
Q:what's the oxidation method of positive pole on the surface of aluminum sheet?
Do chemical polishing again, oxidation time is about 40 – 90 minutes, after finishing all of these, you can conduct positive pole oxidation, choose sulfuric acid solution in normal situation, pretreatment is very important in the whole process, take stereo as negative pole, firstly, use the solution mixed of carbonate-bicarbonate and detergent to heat and clean its surface, pretreat the aluminum sheet, dyeing according to requirement after oxidation, then remove the oxide film with oxide film removal solution, place aluminum sheet on the positive pole, finally closing it in the boiling water for about 15 minutes.
Q:how to produce aluminium sheet circle?
As for the process, you can use punch.. as for professional machines, for example, stationary press in open type, mechanical press/ single-point press. The material you say is neither big nor small, blanking…(cutting them into sheet circle you want) you can add an uncoiling if it’s coil stock: open-type inclinable press, four-point press,ect. It’s not certainly accurate) punch, oil press, double , four-column hydraulic (oil) press,etc. it needs about 315T,(estimated value, closed type single, blank material cutting (cutting into square ) 2, it contains sheet metal forming technology, crank press: 1: straight side two : 1, but the components you said is simple, only two steps.
Q:why is copper sheet but not aluminum sheet that becomes the negative pole after putting copper sheet and aluminum sheet connected with wire into concentrated nitric acid?
it may be that aluminum won't react with concentrated nitric acid.

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