Q:How are steel coils inspected for surface finish after processing?

Steel coils are inspected for surface finish after processing through visual inspection techniques such as using specialized lighting and magnification tools to detect any imperfections, scratches, or blemishes on the coil's surface.

Q:ive made lots of knives but they are dark and not shiny. how do i polish a knife and make it shiny

Look for buffing compound at the hardware store. Home depot lowe's od even Wal-mart/ There is a compound for steel and for iron. I t will not make iron real shinny but it will make it look good. This stuff is to be used with a buffing wheel but I have used it on rags and it work great.

Q:What are the factors influencing the price of steel coils?

The factors influencing the price of steel coils include the cost of raw materials, such as iron ore and coal, as well as energy prices, transportation costs, labor wages, and market demand. Additionally, exchange rates, trade policies, government regulations, and global economic conditions can also impact steel coil prices.

Q:What are the disadvantages of using steel coils?

One of the main disadvantages of using steel coils is their weight, which can make transportation and handling more challenging and costly. Additionally, steel coils are prone to corrosion if not properly coated or protected, which can negatively impact their lifespan and performance. Another downside is their limited flexibility and difficulty in shaping, which may restrict their application in certain industries. Lastly, steel coils can be expensive to produce and acquire, making them less cost-effective compared to alternative materials in some cases.

Q:Steel resist tension. Then why we provide steel in compression zone ?

There are several reasons to add compression steel. Keep in mind, supported steel (meaning it can't buckle) resists compression as well. Compression steel helps reduce long term deflections. Concrete creeps under sustained loads. Steel lessens the compression, meaning less sustained compressive stress to cause creep deflection. It makes members more ductile. Since the steel takes some of the compressive stress, the compression block depth is reduced, increasing the strain in the tension steel at failure, resulting in more ductile behavior (the moment at first yield remains largely the same with compression steel added, but the increase in capacity after yield is significant). Compression steel insures that the tension steel yields before the concrete crushes, meaning it helps change the failure mode to tension controlled. It makes beams easier to construct. With bars in the top and bottom, you have longitudinal reinforcement in all 4 corners of the shear stirrups to keep them in place when pouring the concrete. Also, for continuous members, its often easier to run your negative moment steel the full length of the beam rather than trying to cut it off in the positive moment regions. Serviceability concerns. You're going to end up putting steel in that region anyway to for temperature and shrinkage.

Q:What are the advantages of using steel coils in construction?

There are several advantages of using steel coils in construction. Firstly, steel coils are extremely strong and durable. They have a high tensile strength, which means they can withstand heavy loads and resist deformation. This makes them ideal for structural applications in construction, such as beams, columns, and frames. Secondly, steel coils are highly versatile. They can be easily shaped and molded into various forms, allowing for flexibility in design and construction. Steel coils can be rolled, bent, cut, and welded to meet specific project requirements. This adaptability makes them suitable for a wide range of construction applications. Another advantage of using steel coils in construction is their resistance to corrosion. Steel coils are often coated with protective coatings, such as galvanized or stainless steel, to prevent rusting and corrosion. This ensures that the structural integrity of the building remains intact over time, even in harsh environmental conditions. Furthermore, steel coils offer excellent fire resistance. Unlike other construction materials like wood, steel does not burn or contribute to the spread of fire. This makes it a safer choice for construction, particularly in high-rise buildings or areas prone to fire hazards. Lastly, steel coils are cost-effective. While the initial cost of using steel coils may be higher compared to some other materials, their longevity and low maintenance requirements make them a cost-efficient option in the long run. Steel coils have a long lifespan and require minimal repairs or replacements, resulting in reduced maintenance costs and increased overall value. In conclusion, the advantages of using steel coils in construction include their strength, versatility, corrosion resistance, fire resistance, and cost-effectiveness. These qualities make steel coils an excellent choice for various construction applications, contributing to the durability and safety of buildings.

Q:i got the belly button ring from icing and its surgical steel are they the same things?

There are several different grades and specifications that are referred to collectively as surgical steel, or Surgical stainless steel Non-stainless steel is not used for piercings and sutures and the like, because of the obvious reason that it tends to rust. The most common grade referred to as surgical is 316L, which is also used for food handling equipment. 316L is tough and very durable and has outstanding corrosion resistance. But it is moderately expensive. Very cheap body jewelry may be made out of cheaper grades of stainless steel like 304 or even the dirt-cheap 409. 304 is less corrosion resistant than 316L ; Almost nothing good can be said of type 409, except that's it cheap. 409 is not technically known as surgical, but some manufacturers may claim it is, to increase their asking price and also to cause buyer confusion. Surgical tools, which are not meant to be implanted, are usually made of the well known 440C, which is extremely strong and excellent at holding and edge, but it is not very corrosion resistant and it is brittle. 440C is not usually considered surgical. It's also used to make kitchen knives.

Q:I need details for steel column splices welded or bolted. References or autocad blocks will be very useful. Thank you very much!

The refernce for Canada is S16-01 Limit states steel design My professor always taugth us shop weld field bolt if that helps

Q:I have hundreds of pounds of scrap steel... who purchases this steel and what is the price per pound etc. of this? Does someone pick it up or do I bring it somewhere?

Right now, steel is worth $150/ton. Who purchase it? Well, not every scrap yard handle steel, you have to call them up, or look at the company name that has the word steel or iron. But price can vary from each scrap yard. Try to call around. As for someone to pick it up, the scrap yard will mostly charge you a trucking fee and then the price for steel would be lower. But here is another bad thing if you have it pick up. I know some scrap yard are bad...reall bad..they will skim off some weight...a 1k lbs to 2k lbs. Wish you good luck!

Q:How are steel coils processed for heat treatment?

Steel coils are processed for heat treatment by first being cleaned and prepped for the treatment. They are then heated to a specific temperature and held at that temperature for a set period of time to achieve desired properties such as improved hardness or ductility. After heat treatment, the coils are slowly cooled down to room temperature to prevent any distortion or cracking.