• Prime Cold Rolled Steel Coils in China/ Chinese supplier System 1
  • Prime Cold Rolled Steel Coils in China/ Chinese supplier System 2
Prime Cold Rolled Steel Coils in China/ Chinese supplier

Prime Cold Rolled Steel Coils in China/ Chinese supplier

Ref Price:
get latest price
Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
23 m.t.
Supply Capability:
50000 m.t./month

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Specification

Standard:
ASTM,JIS,EN,GB,DIN
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Dry
Steel Grade:
SS400-SS490,Q235,Q215,Q195
Certification:
CE,BV,ISO,SGS
Thickness:
1.8mm-16mm
Width:
1000mm-1600mm
Length:
according to weight
Net Weight:
23mt
Packaging:
Standard Export Packing

Hot rolled steel coil

1. Specifications about stainless steel sheet

Commodity

ss 304 304L hot rolled cold rolled  stainless steel coil

Grade

201,202,304,304L,316,316L,310S,309S,321,301,310,410,420,430,904L

Brand

TISCO ,BAOSTEEL,POSCO,JISCO,LISCO

Certification

SGS,BV,IQI,TUV,ISO,etc

Thickness

0.3-120mm or as demand

Width

 1000-2000mm or as demand

Length

1000-6000mm  or as demand

Surface

No.1, 2B, BA, 8K Mirror, Hairline,satin, Embossed,brush,No.4,HL,matt,pvc film,laser film.

Standard

ASTM,AISI,SUS,JIS,EN,DIN,GB, ASME,etc

Delivery time

3-5 days after confirming the order

MOQ

1 Ton

Advantages

Showing the splendor of your quality, wearresistant as well , strong corrosion resistance and decorative effect, durable and beautiful in good taste.

 

2. Chemical Composition about stainless steel sheet  

   Grade     C Mn(Max)  P(Max)  S(Max) Si(Max) Cr(Max)Ni(Max)Mo(Max)
2010.155.5-7.50.060.03116.0-18.0   3.5-5.5
2020.157.5-10.50.060.03117.0-19.0   4.0-6.0
3040.0820.0450.03118.0-20.0  8.0-10.5
     304L0.0320.0450.03118.0-20.0  8.0-12.0
     310S0.0820.0450.031.524.0-26.0 19.0-22.0
3160.0820.0450.03116.0-18.0 10.0-14.02.0-3.0
     316L0.0320.0450.03116.0-18.0 10.0-14.02.0-3.0
3170.0820.0450.030.7518.0-20.0 11.0-14.03.0-4.0
     317L0.0320.0450.030.7518.0-20.0 11.0-15.03.0-4.0
3210.0820.0450.030.7517.0-19.0  9.0-12.0
4090.0810.040.01110.5-11.750.5
     410S0.0810.040.03111.5-13.50.6
4100.1510.040.03111.5-13.50.75
4200.350.50.0350.0150.512.0-13.0   0.2-3.0

 

 

3. Production Flow about stainless steel sheet  

Raw materials are sending to hot rolling units for rolling into different sizes

  • Hot rolled material is annealing in cold; rolled annealing furnace and pickling in acid.

  • All mill rolls are grinded on precision grinding machine with proper chamfering after first shiftoperation.

  • All sheets are pickled in different tanks and dried on brush roll machine before dispatched.

  • These sheets are again annealing and are sent to straighten machine for straightening.

  • Inspections are done at various stages. Keep proper control overall internal process via rolling,annealin and pickling by our experienced staff.  

Products Picture

ss 304 304L hot rolled cold rolled stainless steel coil

ss 304 304L hot rolled cold rolled stainless steel coil

ss 304 304L hot rolled cold rolled stainless steel coil

Q: What are the different types of steel coil processing equipment?
In the manufacturing industry, various types of steel coil processing equipment are utilized. These equipment are specifically designed to handle and process steel coils in different ways, enabling efficient and precise production. Some commonly used steel coil processing equipment are as follows: 1. Decoilers: These machines are employed to unwind steel coils and feed them into the processing line. Equipped with motorized systems, they ensure a steady supply of material by controlling the unwinding process. 2. Straighteners: The purpose of straighteners is to flatten and straighten steel coils that may have become distorted during the coiling process. By utilizing a series of rollers, they eliminate any bends or waves, guaranteeing a smooth and consistent feed to the next processing stage. 3. Slitters: Slitters are responsible for cutting steel coils into narrower strips, allowing the production of various widths of steel sheets or strips. They consist of multiple sets of adjustable circular blades used to achieve the desired width. 4. Levelers: Levelers are utilized to correct any surface imperfections in steel coils, such as wavy or undulating surfaces. By means of a series of rollers, they apply pressure and reshape the material, resulting in a flat and uniform surface. 5. Shears: Shears are used to precisely cut steel coils into specific lengths. They can be either hydraulic or mechanical and are designed to provide clean and accurate cuts, ensuring the desired dimensions are achieved. 6. Recoilers: Recoilers are essential for rewinding processed steel coils back into tightly wound coils. They can be either motorized or manual and are crucial for storage and transportation purposes. 7. Edge trimmers: These machines are employed to remove any excess material from the edges of steel coils. By ensuring a clean and consistent edge, they enable better handling and further processing. 8. Coil cars: Coil cars are utilized for the transportation of steel coils within the processing facility. They are equipped with hydraulic or mechanical systems, facilitating easy loading and unloading of coils onto other equipment. These represent only a few examples of the diverse range of steel coil processing equipment used in the industry. Each piece of equipment plays a vital role in the manufacturing process, ensuring the efficient production of high-quality steel products.
Q: I'm missing the arguement, and I've seen another question like this... but the steel toe issue has 2 scenario's right?... Let me label them out, the 2nd is the one that no one talks about?Note to anyone - how are your catapillar boots, your wolverines, and then your cheap walmart/sears brands?1. Steel toe on, toes get cut off because of something falling on them. OUCH!.. Reattach perhaps?2. This one is what I question. No steel toe, large object falls on toes. SMASH... Pudding in your shoes.Wouldn't it be safer to say you'de be better off with a steel toe?
Go to Discovery channel and look up Mythbusters episode on steel toed boots. It will surprise you what they can take, even with dropped items. They could get some damage, but never a severance.
Q: Why is steel used for building purpose and not any other metal?
Steel is used over most other metals due to its desireable properties for buildings. To name a few: strength, hardness, ductility, conductivity, flexability, weight, ability to shape/mold, non-combustability, weather resistance and cost Many other metals have the same properties, only on different scales. For instance, copper may be an excellent conductor, howwever it's expensive and not very weather resistant. Aluminum may be flexible, moldable, but not very strong. The list goes on and on..
Q: Why is the selection of steel building erector of extreme importance while starting a new steel building project?
Because if the beaming is screwed up, everything in the building is at risk. Also, if the erector runs late, everything else is delayed. An incompetent erector can actually cause damage to the beams [especially if inadequate bracing leads to collapse] and getting new ones can severely delay the project.
Q: who, when and where was dual phase steel invented?
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: I work at a tool store. I told my boss last week we needed more pruning shears so he did get more of all kinds. Thing is out of all of the shears he brought Two of different kinds say they are made out of Japanese steel. I have never heard of Japanese steel so now i ask you (the public) whats the difference between it and steel from the US or any other country? Those shears are worth more then the ones he gets from Mexico and China and even more than Black and Decker, Fiskars, etc but not more then Corona brand ones.
Well Japan, with democracy and code standards, would be better than China or Mexico, with poorly paid workers and poor standards and poor quality. I don't know why or if its better quality than US steel
Q: Why can't you use a lead shot only choke with steel shot or a steel shot only choke with lead shot? I have used a lead only choke with steel shot and my shotgun shot fine and there was no damage to the choke.
You should not have done this. It not a matter of shooting fine - it's a question of getting the correct distance and shot pattern SAFELY. Lead only chokes squeeze the lead shot a considerable bit. Lead is compressive and soft - it takes more squeeze to get the correct patterns from a shotgun. Steel only chokes do not squeeze as much as the lead version because the steel is very had and does not compress well. When you accidentally shoot lead through a steel chock the pattern will be weird. But, it usually is not an unsafe condition. However, steel through a lead choke will cause unsafe pressure at the choke and can explode. You end up with a bugs bunny/road runner cartoon looking shotgun! Most gun shops all over the USA are decorated with these blown up shotguns from people doing exactly what you did. Unless you want to add yours to the other dead gun collection in some shop - I recommend you take your shotgun and all your chokes into a gun smith and have him look it all over. See if anything is out of tolerance. Guns are not fool proof. If you do not follow the instructions and operate them safely they will blow up and tear a piece of your body off. Just ask any ER doctor or long time shooter.
Q: How do steel coils contribute to energy efficiency in buildings?
Steel coils contribute to energy efficiency in buildings in several ways. Firstly, steel coils are used in the construction of insulated panels and roofs, which provide effective thermal insulation. This insulation helps to reduce heat transfer, keeping the interior of the building cool in hot weather and warm in cold weather. Additionally, steel coils are often used in the manufacturing of energy-efficient windows and doors. These windows and doors are designed to minimize heat loss or gain, thereby reducing the need for heating or cooling systems and saving energy. Furthermore, steel coils are also utilized in the production of energy-efficient appliances, such as refrigerators and air conditioners, which consume less electricity while providing the same level of performance. Overall, the use of steel coils in building construction and appliances contributes to improved energy efficiency, reducing energy consumption and promoting sustainability.
Q: How are steel coils coated to prevent rust and corrosion?
Steel coils are coated to prevent rust and corrosion through a process called galvanization. This involves immersing the coils in a bath of molten zinc, which forms a protective layer on the steel surface. This zinc coating acts as a barrier, preventing oxygen and moisture from reaching the steel and causing rust. Additionally, the zinc coating provides sacrificial protection, meaning that even if the steel is exposed due to scratches or abrasions, the zinc will corrode before the steel, further enhancing its longevity and resistance to rust and corrosion.
Q: Can steel coils be used in outdoor applications?
Indeed, outdoor applications can make use of steel coils. Steel, recognized for its resilience and robustness, proves to be ideal for various outdoor purposes. Commonly utilized in construction, automotive manufacturing, and transportation industries, steel coils exhibit resistance against adverse weather conditions like rain, snow, and UV exposure. Furthermore, to enhance their durability and prolong their lifespan, steel coils frequently undergo protective finishes such as galvanized or painted coatings. Ultimately, owing to their strength, durability, and ability to withstand environmental factors, steel coils emerge as a dependable and versatile choice for outdoor applications.

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