Cold Rolled steel coil / sheet in good quality in China

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
5000000 m.t./month

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Product Description:

Specification

 

Product Name

Cold Rolled Sheet Coil

Material

SPCC/SPCD/SPCE/DC01/ST12/ ST14/SPCD/DC03/DC04 ect.

Grade Standard

JIS G3302, EN10142, ASTM653, ASTM95

Thickness

0.15-3.5mm

Width

600mm-1500mm

Coil ID

508-610mm

Coil OD

max 1500mm

Weight

3-10 Tons

Tolerance

Thickness tolerance:+/-0.02mm; Width tolerance:+/-5mm

Surface

No-skin passed or Skin passed, Tensile leveled

Surface Treatment

Chromate/Unchromate passivation, fingerprint resistant treatment, oiled/unoiled

Annual Output

350,000MT

Application

Construction, hardware, home applicances, interior decoration

 

 

Characteristics

1. Commercial quality suitable for bending fabrication and simple forming; this is the type in greatest demand.

2. Drawing quality second only to that of SPCEN. Excellent uniformity.

3. Deep-drawing quality.With metallurgically controlled grain size, it retains its beautiful finish even after being deep-drawn.

4. Extra-low-carbon steel sheets with highest workability

 

 

Quality of the goods could be guaranteed. The finished product has a variety of excellent capabilities, such as continuous rolling, degreasing, annealing, skin pass, slitting and cut to length line etc. Along with it many rocessing capability and smooth, flat surface. It’s widely used in outdoor and interior decoration, furnishing

 

 

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Q:serious question! Dual-phase steel?
Dual Phase steels refers to a distinct group of alloys which are used for automotive bodies. These were developed to give improved deep drawing (for shaping) and strength while on the road. Most of the work was started at the same time in the 1970s as a response to the oil crisis (history repeats!) with SSAB in Europe, US Steel and British Steel leading the way. There are many variants of the dual phase alloys prefered by each of the auto manufacturers. The work on these steels led the way for TRIP (transformation induced plasticity) steels, rephosphorised steels and HSLA (high strength low alloy) steels. There is a distinction between these steels and duplex steels which typically refer to austenitic/ferrtic stainless steels. Also be aware that everyday low carbon steels with 0.1%-0.6% carbon will have a ferritic/pearlitic structure but are not considered to be dual phase So to summarise: Who - major steel companies worldwide When - from about 1973 onwards (up to around 1977 when the developments went in other directions) Where - Europe, USA and Japan (but I'm not sure who it was in Japan doing the work)
Q:Stainless steel or aluminum for campfire cooking?
I added a few more pieces. Love the glass lids. I have a couple pieces of Le Creuset, but it is too heavy even before the food goes in and I don't like dealing with it. I regret buying the Le Creuset now---should have just bought the Lodge Enameled Cast Iron stuff for about a fourth of the cost. I do have a Lodge 5 qt. dutch oven that I use to deep fry and it is a nice piece and easy to clean. The LC dutch oven does a nice job when I want stew-type recipes.
Q:what effect does reducing the carbon content have on the properties of steel?
decreasing the carbon content fabric will strengthen the ductility, which will make it greater versatile. Carbon in metallic varieties brittle cementite (iron carbide) which will strengthen the hardness and capability of metallic.
Q:Why can hot rolled coils be placed outside?
Because the stress of participation should be eliminated
Q:damascus steel knife making?
Here's what you need, the cable should be a minimum of 9/16 with large wires. You need some borax (20 mule team from the store). A good hot coal, coke, or gas forge. If the cable has fiber rope in the center it will need to be removed. Fuse the ends of the cable to keep them from coming apart. I use my welder and while I'm at it I weld a handle to make it easier. Heat it in the forge when the forge is properly heated, rotate it. Some people will burn the oil out, but I've found that the forge does that just fine. Rotate the cable while it's heating. When it begins the turn red pull it out and sprinkle the borax over it, don't hold back use a lot. It will begin to melt and bubble into the steel. Put the cable back in the forge, rotate and watch. This is the critical part. When the steel starts to turn from orange/yellow to almost yellow/white take it out and lightly (I use a 2lb hammer) begin hammering the cable into a square or rectangle. If you do it right you'll notice that it will begin to fight the hammer, that's when you know the weld it taking place. You'll have to repeat the process down the length of the cable. Once you have the billet made you can begin the process of shaping the edge and tang. Once you have it shaped, follow proper forge procedure then grind all the yuck off and finish shaping. Then harden and temper and finish it out. Good luck. I almost forgot a very important part. Befor you start hammering put the cable in a vice while at welding temp (if you are strong you can use a couple of plyers) and twist it tight. On the next heat hold the cable in your left and and lay it on the anvil. Concentrate on your light hammer blows being on your side of the cable. This forces the cable strands together. If you are using smaller cable like 9/16 you can double the cable up and weld two peices together, it is easier and makes for a prettier blade. Doing this you don't have to worry about twisting the cable and you can hit it much harder to start with.
Q:why use brass sell casings? why not steel?
soft steel is used at times...(com block ammo is flush with steel cased products) Steel rusts so you have to paint it or coat it... the coatings leave residue in firearms that can cause a stoppage. Brass is the A choice for casings. No Rust, it has no issues for reactivity, wont spark, expands to seal chambers... and in many cases can be reloaded and used over again.
Q:Why are some steel companies more successful than others?
Steel is a global commodity. There is some variety in product (flat rolled, tubing, etc), but basically the same product worldwide. Cost to the customer includes shipping of a very heavy product. Inputs are also heavy and costly to ship. Inputs: - Coal - Iron Ore. Some firms have the ability to recycle old steel, a competitive advantage. - Energy (very energy intensive industry) - Labor - Machinery. A new blast furnace is more efficient than 50 years old. So the most profitable steel firms have some of these characteristics: - Proximity to raw materials - Proximity to customers - Access to cheaper means of transportation; rail and sea - Newer machinery - Cheaper labor force - Reasonable cost for electricity and fuel for furnaces
Q:Steel or wood?? About the resistivity?
Wood is made up of elements which are non-metals with a high electron affinity. Specifically, carbon, oxygen, hydrogen, and some nitrogen. Furthermore the covalent bond structure in wood means electrons are tightly bound and cannot move easily from atom to another. Not without adding a great deal of energy to the first. Steel is mostly iron, which is a metal. Metals have low electron affinity. The outer electrons in metals are bound very loosely, so that they can move from atom to atom using almost no energy. Metals tend to conduct electricity very easily.
Q:turps and stainless steel?
real s/steel is nickel and chrome, however manufacturers of kitchenware, e.g s/teel cutlery use the cheaper version of nickel chrome and iron, that is why some s/steel products rust, so if you want to test any products carry asmall magnet and test the article
Q:what is the stucture of high carbon steel?
That is kind of a broad question because high carbon steel can cover a broad range and you did not mention the condition. But I will try to keep it simple. If it is in a wrought condition, it would likely be pearlite plus carbides along the grain boundaries., The atomic structure would be body centered cubic. Sometimes high carbon steel is spherodized annealed and that would be ferrite with lots of round carbides. The atomic structure would be body centered cubic. If it is quench and tempered, it would be martensite and would probably have noticeable carbides if the carbon content was high enough. The atomic structure would be body centered tetragonal

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