High Quanlity Cold rolled steel coils System 1

High Quanlity Cold rolled steel coils

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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

General Application of Cold Rolled Steel Coil:

Classification	Designation	Characteristics	Main applications
Commercial quality	SPCC SPCCT	Commercial quality suitable for bending fabrication and simple forming; this is the type in greatest demand.	Refrigerators, cabinets, power distribution baords and drums.
Drawing quality	SPCD	Drawing quality second only to that of SPCEN. Excellent uniformity.	Automobile floor and roof panels.
Deep-drawing quality	SPCE SPCF	Deep-drawing quality.With metallurgically controlled grain size, it retains its beautiful finish even after being deep-drawn.	Automobile fenders and quarter panels
Extra deep-drawing quality	SPCG	Extra-low-carbon steel sheets with highest workability	Automobile internal panels and deep-drawn parts

Q:How are steel coils used in the manufacturing of doors and windows?: Steel coils are used in the manufacturing of doors and windows by being processed into flat sheets or strips, which are then cut, shaped, and formed into various components such as frames, panels, and reinforcements. The steel coils provide strength, durability, and stability to the final products, ensuring high-quality doors and windows that can withstand different weather conditions and provide security to buildings.

Q:I was watching a documentary on the samurai vs the European knight. It said that the when Japan was being invaded by the (cant remember) they needed a new weapon. The enemies armor made iron swords useless. While steel swords broke when in combat. So to combat this the Japanese made a hybrid sword. They used a special mold that made the swords back iron while the part that makes contact with the enemy was steel. Also the sword was curved so it increased its armor and cutting power. This revolutionary design made the the sword stronger. The iron back made it not break while the steel edge made it cut through the enemies armor. I want to know how iron is stronger than steel, and how steel can cut better than iron.: Firstly Iron is not stronger than Steel. You must understand that steel is made with iron. Steel is iron with carbon infused into the crystal lattice; thus making it stronger. Iron was used as the backing because it is more ductile and resilient than steel because steel is stronger and more brittle. So on this basis steel is stronger and better to hit the armor first with more cutting power because it wont yield to softer materials, and iron was suited for the backing because it would allow it to bend as pressure is being applied, but without braking.

Q:Can steel coils be used in corrosive environments?: Yes, steel coils can be used in corrosive environments. However, it is important to select the appropriate type of steel and implement suitable protective measures such as coatings or galvanization to prevent corrosion.

Q:What are the different coil leveling methods used for steel coils?: There are several coil leveling methods used for steel coils, each with its own benefits and limitations. Here are some of the most common methods: 1. Roller Leveling: In this method, steel coils are passed through a series of rollers that apply pressure to flatten and level the coils. Roller leveling is effective in reducing coil crown or center buckle, and it can also help eliminate coil memory. However, it may not be suitable for coils with severe shape defects or variations. 2. Stretch Leveling: This method involves stretching the steel coils to remove any shape defects. The coils are passed through a series of gripper heads that hold the edges of the coil while it is stretched. Stretch leveling is particularly effective in correcting crossbow and edge wave defects. However, it may cause some elongation and yield loss in the material. 3. Temper Pass: This method involves passing the steel coils through a series of temper mill stands, where they are subjected to tension and compression forces. Temper pass leveling helps improve flatness and remove coil memory. It is commonly used for thinner gauge steel coils but may not be suitable for thicker coils. 4. Corrective Leveling: This method is used for coils with severe shape defects. It involves selectively removing material from specific areas of the coil to correct the shape. Corrective leveling is a labor-intensive process that requires skilled operators, but it can effectively eliminate shape defects and improve flatness. 5. Tension Leveling: In this method, the steel coils are subjected to tension forces while being passed through a series of pinch rolls. Tension leveling helps remove coil memory and improve flatness. It is particularly effective for coils with edge wave defects. However, it may cause some elongation and yield loss in the material. These are just a few of the coil leveling methods used for steel coils. The choice of method depends on the specific requirements of the steel coils and the desired flatness results. It is important to consider factors such as material thickness, shape defects, and production capacity when selecting the appropriate leveling method.

Q:What are the different types of steel coil coatings available?: There are several types of steel coil coatings available, including polyester, polyvinylidene fluoride (PVDF), siliconized polyester, plastisol, and acrylic. Each type of coating has its own unique properties and benefits, such as durability, resistance to corrosion and weathering, and aesthetic appeal. These coatings can be applied to steel coils to enhance their performance and appearance in various industries, such as construction, automotive, and appliances.

Q:How are steel coils tested for strength and durability?: Steel coils are tested for strength and durability through various methods such as tensile testing, impact testing, and fatigue testing. Tensile testing involves subjecting the steel coil to tension until it breaks, measuring the maximum force it can withstand. Impact testing involves striking the coil with a heavy object to assess its ability to resist sudden shocks. Fatigue testing involves subjecting the coil to repeated load cycles to determine its resistance to long-term stress. These tests help ensure that steel coils meet the required strength and durability standards.

Q:is stainless steel a good steel for sensitive skin? or does it have to be surgical or sterling silver?: Surgical stainless steel 316LVM is good, 316L is nowhere near in quality. Its very unusual for someone to have a reaction to surgical steel. Avoid plain stainless steel. Titanium is better, tougher and lighter. And contains less nickel than surgical steel, pretty close to nothing. Its pretty much impossible to be allergic to good quality titanium. Niobium contains no nickel, but only comes as CBRs, and is pretty expensive and unusual. Silver and gold should be avoid in piercings. They have to mix it with so much other junk so that its strong enough, really high nickel content.

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 dimensions of steel coils used in the energy sector?: The dimensions of steel coils used in the energy sector can vary depending on the specific application and requirements. However, commonly used dimensions for steel coils in the energy sector range from 0.5mm to 5.0mm in thickness, with widths typically ranging from 600mm to 2000mm. The diameter of the coil can vary as well, with commonly used sizes ranging from 1000mm to 2200mm. These dimensions are chosen to ensure the coils can be easily transported, processed, and utilized in various energy sector applications such as power plants, oil and gas pipelines, and renewable energy projects. It is important to note that these dimensions are not fixed and can be customized based on specific project requirements.

Q:i know that steel helmets werent meant to stop bullets, but i was wondering do they have an value whatsoever for stopping bullets, or is that just yet another thing that hollywood made up(like the omaha beach scene in saving private rian): richard S is right. They were designed to deflect shrapnel more than anything else, but I have seen few cases where a round striking at the right angle was deflected enough to safe the soldier. The new Kevlar helmets perform much better, I have seen them stop an AK 47 round (7.62x39MM) and they will stop most military handgun rounds. shoot safe

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