Colored Coated Stainless Steel for Buliding Materials

Colored Coated Stainless Steel for Buliding Materials

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 8000 m.t./month

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Packaging & Delivery

Packaging Detail:	color steel coil STANDARD EXPORT SEAWORTHY PACKING
Delivery Detail:	25 DAYS AFTER DOWN PAYMENT

Specifications

color steel coil
Prime Quality, Quick Delivery, Competitive Price

Prepainted Galvanized Steel Coil (PPGI/PPGL)

Base material: Hot dipped galvanized steel

Width: available from 800MM to 1250MM

Width Tolerance: within 0.02MM

Thickness: available from 0.18MM to 0.80MM

Thickness Tolerance: within 0.15MM

Performance: Smooth or Matte

Color: according to RAL standard

Lacquer Coating thickness: according to customer needs

Supply capacity: 8,000 Metric Ton per month

Our products has good performance on combining force and anti-erosion. We offer fine quality products and best price for our international customers.

Q:I have one and wonder how much force this can take since it does seem like you can bend it(Sure it's impossible with hands), but I don't want to try that cause i don't want to break it. Many people say that it's really hard and can handle a hammer smash? is that true and can it even make it through more force. Cause steel is harder than iron and iron is pretty hard... So how much can i trust this locks security, i mean if i put at at a door would some thiefes be able to break it, if they had the right tools??: Have you ever watched any of the shows where people are buying lockers at storage facilities? This style lock is used quite often. The reason for the small shackle is to prevent someone from using bolt cutters. Unfortunately, if a thief has a cordless right angle grinder with the right cutting blade they will still be able to remove it. That is what the guys at most of these auctions use to remove them in 10-15 seconds.

Q:explain what happen if carbon steel is exposed to an oxygen rich atmosphere at elevated temperature inside a furnace.: Assuming the steel isn't actually melted, two things will happen. First, a layer of iron(ii) oxide, FeO will slowly develop on the surface, getting thicker over time. This layer is usually poorly bonded to the metal surface, it tends to flake off, exposing fresh metal. This is known as mill scale, it's also known as wustite which is the mineral term. Second, the surface of the steel will become decarburized, essentially becoming pure iron, not steel. The depth of the decarburized layer depends on the temperature, time, and the diffusivity of carbon in the steel at the given temp. This has some implications to engineering, in hot-rolling or forging of steel shapes for example. It's often the case that the stress and strain in a material is greatest at or near the surface. Therefore the weakened, decarburized layer at the surface may have a much greater detrimental effect on the steel's performance than might be expected. In a more specific example, die and tool steels depend on their carbon content for their strength and wear resistance, Therefore if such steels are heated in an oxidzing atmosphere, wear resistance is totally destroyed: The thin decarburized iron layer will be extremely soft and malleable.

Q:What are the different methods of heat treatment for steel coils?: There are several different methods of heat treatment for steel coils, each with its own benefits and applications. 1. Annealing: This method involves heating the steel coils to a high temperature and then slowly cooling them, usually in a controlled atmosphere. Annealing helps to relieve internal stresses, improve ductility, and refine the grain structure of the steel, making it softer and more machinable. 2. Normalizing: Normalizing is similar to annealing, but the cooling process is typically faster. This treatment is often used to refine the grain structure and achieve a more uniform hardness throughout the steel coils. It also helps to remove any residual stresses and improve the mechanical properties of the material. 3. Quenching and tempering: In this two-step heat treatment process, the steel coils are first heated to a high temperature and then rapidly cooled by immersion in a quenching medium, such as oil or water. This causes the formation of a hard, brittle phase called martensite. To improve the toughness and reduce the brittleness, the coils are then reheated to a lower temperature and held there for a specific period of time. This process, known as tempering, helps to reduce the internal stresses and increase the ductility and toughness of the steel. 4. Case hardening: Case hardening is a heat treatment method used to increase the surface hardness of the steel coils while maintaining a relatively soft and ductile core. The process involves heating the coils in the presence of a carbon-rich atmosphere, allowing carbon to diffuse into the surface layer of the steel. This creates a hard outer layer, known as the case, while preserving the desired mechanical properties in the core. 5. Stress relieving: Stress relieving is performed by heating the steel coils to a specific temperature and holding them there for a sufficient period of time. This process helps to reduce residual stresses that may have been introduced during previous manufacturing or heat treatment processes. Stress relieving can improve dimensional stability, reduce the risk of distortion or cracking, and enhance the overall performance of the steel coils. Overall, the choice of heat treatment method for steel coils depends on the desired properties, intended application, and specific requirements of the end product. Each method has its own advantages and can be tailored to achieve the desired balance between hardness, toughness, ductility, and other mechanical properties.

Q:Im looking at some knives and am wandering if they use good steel one is this case knife and its 54 dollars Do they use good steel or not Iv never had a good experience with Case but am wandering if they use good steel now? if you all have any other recommendations let me hear them I got my Selection from here so any others wont hurt. so basic break down does case use good steel know?: Case knives are top quality in workmanship. Many have collectors vlaue. I once found an antique four-bladed Case knife is a school yard that had a bone handle. There are basically three types of knives purchased by those who purchase them for practical uses: Pocket knives, made principally for whittling and gneral light use Lock bladed knives Sheath knives I'm not including such novleties as switchblades or throwing knives The latter two types of knives are designed more for outdoor use. Typically they are more duarble and have high quality steel that enables the knife to hold an edge for a longer period of time than a knife made of softer steel. Pocket knives, by contrast, have smaller, thinner blades. Moreover, their steel tends to be a little softer. Comparable brands to Case would include Boker, Old- Timer and Uncle Henry (both Schrade-Walden tradenames), Camillus and others. Overall, I think you would be pleased with a Case knife. Their quality certainly exceeds such brands as Imperial or Queen.

Q:I've been looking for lots of info on this steel. Cold Steel uses it now in their knives replacing the AUS-8 steel. I was hoping somebody had a knife with this steel who could give me some real first hand knowledge not just numbers. Thanks!: Before I answer I must let you know that I have been a knife collector for 17 years, and have a great assortment of specialty and antique folding knives. As for your question, I wouldn't worry too much about it. The first answerer is very knowledgeable in this category. But in the real world, the steel chemistry of folding knives will never be as important as that of fixed blades or kitchen knives. The fact that manufacturures go through great lengths to advertise their superior steel is just for sales and bragging rights. When it comes down to it, a pocketknife might be useful, but it is never the best tool for the job. It is a compomised design from the beginning. If you need to cut a steak, a steak knife will do. A box cutter works best on cardboard. A razor works best for shaving, wire cutters best for cutting wire, an axe for chopping wood...I could go on. A pocket knife is never going to perform better than the real thing ( although I do prefer the can openers on Swiss army knives than real can openers). As for self defense, minus the concealability factor, a folding knife sucks compared to a fixed blade. But if you were to pull one out during an extreme circumstance, I doubt anyone is going to be effected by the Rockwell hardness.

Q:They are showing on tv a special on how the new World Trade Center, building 1, is being built. Focusing on the steel and the guys fitting everything together.Where do builders go to buy all that steel framing? We do not build really tall buildings where I live so most of the steel is cut and welded on the job site. At World Trade Center 1, they seem to get the steel on trucks; already cut and welded.: Most of the parts are cut, welded, and fabricated indoors in a welding shop at another location. Then they're trucked to the site and simply need to be bolted together. This is made possible through the use of computer aided design and modeling programs, so that parts can be made to fit almost presciently in the field. They buy the steel from steel companies. I couldn't tell you exactly where it comes from, you'd have to ask the contractors themselves.

Q:What are the different methods of joining steel coils?: There are several methods used for joining steel coils, including welding, brazing, soldering, and mechanical fastening. Welding is the most common method, which involves melting the edges of the coils and fusing them together. Brazing and soldering involve using a filler metal with a lower melting point to join the coils. Mechanical fastening methods include using bolts, screws, or clips to connect the coils together. Each method has its own advantages and is chosen based on the specific requirements and constraints of the application.

Q:What's the length of a coil of cold rolled steel? Is there a standard?: Generally there is no standard length, to customer demand to roll weight, because customers with steel coil production capacity is different, lifting ability of a volume can do longer, on the contrary, do small points.

Q:Want to get stainless steel sink. I want quality, durability, quiet, etc. Any suggestions??: One part of our home is the kitchen, which is usually one of the busiest parts of the home. And part of it is the kitchen sink; as you look at the sink, you can hardly tell how much work is done in the sink. And in our daily activities, most of us use our sink in our own personal needs. Most of the time, we wash our face and clean our clothes, shoes and anything that needs to be washed in our sink. With this kind of job that the sink is going through in its everyday life, sink must be tough enough to take all the pressure of its job. Ordinary sink will not last long when it is use regularly. It may acquire rust, scratches and dent as we have use it in a regular basis, this is why we need to look for a sink that can manage to handle different usage and tasks in our home. In choosing a sink for our home, we must consider the quality and not the price alone. Stainless steel sink is easy to clean; stain and rust are needed not to worry because stainless steel sink is proven a rustproof material. But of course proper care for the sink should always be taken care of to make use of the sink for a very long time. In shopping for a sink, it can be hassle knowing that stainless steel sink is made of heavy material. And the good news is that stainless steel sink can be bought online. You can shop through the internet and you can have the freedom to choose a sink that will fit your kitchen.

Q:How are steel coils tested for mechanical properties?: Steel coils are tested for mechanical properties through various methods, including tension testing, hardness testing, and impact testing. Tension testing involves applying force to the coil until it breaks, allowing for the measurement of its strength and elongation. Hardness testing determines the coil's resistance to indentation, providing insight into its overall strength and durability. Impact testing determines the coil's ability to withstand sudden applied loads by subjecting it to a high-velocity impact and measuring its ability to absorb the energy. These tests help ensure that steel coils meet the required mechanical properties for their intended applications.

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