galvanized steel coils

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1) Quality Standard & Grade: JIS G3302, SGCC / ASTM 653M CQ/ EN10142 DX51D+Z

2) Thikness tolerance: +/-0.02mm Width tolerance:+/0.02mm

3) Zinc coating weight: 50g/m2

4) WEIGHT OF PER COIL: 3-5MT

5)Technology: cold rolled

6) Surface of Product: regular spangle / big spangle/ small spangle; Surface Treatment: chromated , non oiled, skin passed

7) Packing: export standard packing,packed with moisture resistant paper and metal

wrapping,securely tied for export,on metal skids7) Country of Origin :China

SIZE:0.35*914

Q: Nickel is ferro magnetic in nature. But when it is added with stainless steel, it makes stainless steel non-magnetic. What is the structural changes happened with the presence of nickel?: All stainless steel is non magnetic.

Q: Brass as a rule I believe is betterhowever I do not plan to get into reloading any time soon I just want some cheap practice ammo so will steel case ammo hurt my gun (semi auto) any more than brass ammo and if so how much more?: Depends what your gun is. I wouldn't shoot steel through a 5,000 dollar gun but my SKS jams up with anything except steel ammo. It adds wear to some guns but in most cases you won't shoot enough to cause any real problems. They also make steel that is coated in lacquer that protects your gun a little. In most cases steel is no big deal, in high performance weapons I would say no.

Q: How are steel coils used in the production of power transmission towers?: Steel coils are used in the production of power transmission towers because they provide the necessary strength and structural integrity required to support the transmission lines. The coils are formed into various sections and welded together to create the tower's framework, ensuring it can withstand the weight of the cables and withstand external forces such as wind and seismic activity.

Q: How are steel coils used in the production of steel springs?: Steel coils are used in the production of steel springs by being cut and shaped into the desired size and shape of the spring. The coils are then heated and tempered to improve their strength and flexibility. The steel coils provide the raw material necessary for creating durable and reliable steel springs used in various applications such as automotive, furniture, and industrial machinery.

Q: What is the process of uncoiling steel coils?: The process of uncoiling steel coils involves carefully unwinding the tightly wound steel coil using specialized equipment. This typically includes a decoiler or uncoiler machine that holds and releases the coil, allowing it to gradually unwind. The coil is typically fed through a set of rollers or guides to ensure a smooth and controlled unwinding process. As the coil unwinds, it can be further processed or used for various applications, such as cutting, stamping, or forming into different shapes.

Q: How are steel coils processed for different levels of hardness?: Steel coils can be processed for different levels of hardness through a combination of heat treatment and mechanical processes. To increase the hardness, the coils undergo a process called quenching and tempering. This involves heating the steel to a specific temperature, followed by rapid cooling (quenching) to create a hardened structure. Subsequently, the coils are reheated to a lower temperature and held there for a specific duration (tempering) to achieve the desired level of hardness. Other mechanical processes, such as cold rolling or cold drawing, can also be employed to further enhance the hardness of the steel coils.

Q: How are steel coils cleaned?: Steel coils are typically cleaned using a combination of mechanical and chemical methods. First, the coils are subjected to high-pressure water jets to remove any loose dirt, dust, or debris. Then, a specialized cleaning solution or detergent is applied to dissolve and remove any oil, grease, or stubborn stains. The coils are rinsed thoroughly to ensure the removal of all cleaning agents, followed by drying to prevent corrosion.

Q: How is the quality of steel coils determined?: The quality of steel coils is determined by various factors such as the chemical composition, mechanical properties, surface finish, and dimensional tolerances. These factors are assessed through rigorous testing and inspections, including chemical analysis, tensile testing, hardness testing, visual inspection, and dimensional measurements. Additionally, industry standards and specifications play a crucial role in determining the quality of steel coils by setting specific requirements that the coils must meet.

Q: How are steel coils protected from humidity?: Steel coils are typically protected from humidity through a process called galvanization, where a layer of zinc or another protective coating is applied to the surface of the steel. This coating acts as a barrier, preventing moisture from coming into direct contact with the steel and minimizing the risk of corrosion. Additionally, steel coils are often stored in dry, enclosed spaces or wrapped with moisture-resistant materials such as plastic or wax paper to further protect them from humidity.

Q: Why is it usually scorned by the shooting community to use steel cased ammo (like Wolf)? Always hear corrosive and steel is bad for the extractor/firing pin. Hulp a simpleton out!: I okorder /

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