Detailed introduction of mirror 8k stainless steel coil

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Introduction

In daily life, we may not often see stainless steel whose surface is as shiny as a mirror. Generally, they are used in the decoration industry or the optical industry where high brightness is required. It is the Mirror 8K stainless steel coil.

It has a bright surface and high corrosion resistance. Moreover, the coloured stainless steel coil is also very suitable for wallboard.

So it has a wide range of uses.

Next, let’s take a closer look at it.

mirror 8k stainless steel coil

What is mirror 8k stainless steel coil?

People mechanically grind and polish the BA, 2B or matte stainless steel surface to form mirror 8k stainless steel.

Then, people roll the mirror 8k stainless steel to form an ordinary mirror 8k stainless steel coil.

However, what do mirror and 8k in mirror 8k stainless steel mean?

(Information about another type 201 stainless steel coil, you can check  Introduction of 201 Stainless steel coil)

Mirror

‘Mirror’ represents a treatment standard for stainless steel surfaces. People polish and grind the surface of stainless steel. This makes its surface as bright as a mirror and can reflect objects. This is the mirror.

8K

First of all, the corrosion resistance of stainless steel depends on its alloy composition. Among them are Cr, Ni, titanium, silicon, and manganese.

However, Cr is decisive for the corrosion resistance of stainless steel.

Secondly, “8” refers to the proportion of alloy in stainless steel.

For “K”, it refers to the reflectivity grade of the processed stainless steel. Among them, K is the mirror grade.

By the way, mirror 8K stainless steel has two types: single-sided and double-sided.

Mirror grade of mirror 8K stainless steel coil

Regarding the mirror grade of stainless steel, there are 6k, 10k, 12k.

Moreover, the larger the number, the greater the fineness of the mirror:

6K refers to the rough grinding and polishing mirror panel. And its effect is a little worse than the mirror;

10K refers to the finely ground and polished mirror panel. And its reflectance is similar to that of an ordinary mirror;

And 12K refers to the ultra-fine grinding and polishing mirror panel, which can meet optical applications.

However, this grading standard is not uniform. As long as the brightness is greater, the reflectivity is greater, and the surface defects are less, and more people like this mirror stainless steel.

Therefore, people regard stainless steel with the same brightness as 8K stainless steel.

Then, why do people want to polish the surface of stainless steel?

The difference between 8K mirror stainless steel and 12K mirror stainless steel

Usually,  mirror stainless steels have been extended to 8K, 10K, 12K, due to the difference in the degree of fineness required by customers, they are “defined” as the larger the number, the higher the fineness of the mirror surface.

6K refers to the rough grinding and polishing mirror panel, which is less effective than mirrors; 10K refers to the fine grinding and polishing mirror panel, which can be comparable to ordinary mirrors; and 12K refers to the ultra-fine grinding and polishing mirror panel, which can meet optical applications.

Mirror stainless steel plate is a popular decoration material. Its second-largest sales volume of a stainless steel plate which was quite strongly welcome by consumers. However, with a high demand for mirror stainless steel in the market, the quality has become the biggest problem for most buyer and supplier

Why does stainless steel need 8k surface treatment?

The processing of stainless steel into 8K stainless steel enhances its performance:

  1. Surface brightness
  2. Surface reflectance
  3. Corrosion resistance

Moreover, this reduces the coefficient of friction and surface stress.

Then, what is the specific production company of Mirror 8K stainless steel?

Mirror 8K stainless steel production process

The basic plates of Mirror 8k stainless steel are mostly 2B and BA.

it is necessary to mix the grinding liquid during the product process: mix water, nitrate acid, iron-red powder, etc. according to a certain ratio to make a grinding liquid.Moreover, the better the ratio is deployed, the higher the quality of the product

First step – Rough polishing

Rough polishing is generally done with water. Moreover, it uses six sets of grinders. Then, people arrange the grinding wheels in order from coarse to fine to grind stainless steel. This can remove defects such as roughness, burrs, and trachoma on the surface of stainless steel.

Moreover, the grinding has a certain depth, most of which are within 2c.

After obtaining a certain extent in this way. And then, people finely polish it.

Second step – Fine polishing

This group of grinding machines uses high-density wool felt. Moreover, the higher the density of wool felt, the better. Then, people add slurry.

This removes the oxide layer, sand marks, grinding headlines, etc. on the surface of the stainless steel. Therefore, it improves the luminosity of stainless steel. Moreover, the finely polished stainless steel can reflect the details of the article.

Third step – Washing and drying

After polishing, people use a brush dipped in clean water to clean the surface of the stainless steel. Moreover, the finer the brush, the cleaner the water and the cleaner the product.

Then, people use a baking lamp to dry the water on stainless steel.

Fourth step – Quality inspection

After processing the surface of stainless steel, people also need to check the breadth of stainless steel, blisters, dark bones, scratches, and whether the product is deformed, and whether the grinding head is within the standard range.

Otherwise, the quality of the product is not up to standard.

The final step – Packing with protective film

The finished mirror is 8k stainless steel, and people will put a protective film on it.

Moreover, stainless steel cannot leak edges, and the protective film must be cut neatly.

And then, people can pack the finished mirror 8K stainless steel in a box.

The production process of double-sided mirror 8K stainless steel coil

The production process of the double-sided mirror 8K stainless steel is the same as the above.

However, when people grind stainless steel, they have to use the same size pad as a base. This prevents scratches on the other side.

Moreover, after putting a protective film on the polished side, polish the other side.

However, after people polished the second side, the protective film on the first side was dirty. Therefore, after people have finished grinding, they must re-attach the protective film to the first side.

To sum up, compared to a single-sided mirror 8K stainless steel coil, the double-sided mirror is more time-consuming. Moreover, its cost is relatively high.

Therefore, its price is about 3 times more expensive than the single-sided processing fee.

Colouring

In addition, people can also colour mirror 8K stainless steel coil.

Similarly, its methods are as follows:

Plating

People use electrolyte to attach a metal film to the surface of coloured stainless steel.

Moreover, this can play a role in preventing corrosion, improving abrasion resistance, conductivity, light reflection and improving aesthetics.

Water plating

People put stainless steel in an aqueous solution. Then, the ions on the surface of the stainless steel will continue to appear on the auto-catalytic surface. This forms a metal coating.

Fluorocarbon paint

In this process, fluororesin is the main film-forming substance.

Spray paint

People spray the paint on the stainless steel plate in the form of mist. As a result, stainless steel has different colours.

Mirror stainless steel melting point

In addition to the above process, in the processing of stainless steel, people have to control the melting point of the mirror surface 8k stainless steel coil.

As for the melting point of mirror 8K stainless steel is to burn the 8K mirror stainless steel coil red. This temperature needs to reach 400 degrees.

Moreover, it has nothing to do with the surface of stainless steel. But with the composition of stainless steel and the content of these components.

Features of mirror 8K stainless steel coil

Mirror stainless steel has good corrosion resistance and thermal fatigue. However, its resistance to inter-granular corrosion is not as good as 200 series stainless steel. People can usually use it instead of 200 series stainless steel.

Compared with 304 material, its tensile properties, welding properties and thermal expansion are lower. Therefore, its price is relatively cheap. So people use it widely.

So, how is the mirror polishing finish done on stainless steel?

How is the stainless steel polished to form a mirror coil?

The working principle of the stainless-steel round tube polishing machine is to use a high-speed rotating polishing wheel combined with a rotating guide wheel to make the round tube automatically move forward while using the polishing wheel to rub the surface of the circular tube and achieve the polishing effect.

By adjusting the feed amount of the grinding head, one can choose the amount of the polishing effect, and thus, the ideal polishing effect can be achieved by adjusting the feed amount for the workpiece. Various polishing wheels are used, the commonly used include grinding wheels, hemp wheels, cloth wheels, nylon wheels, and wool wheels, etc. The polished round tube surface gives off a mirror effect, and the polishing quality is higher than other polishing processes.

The mirror finish is achieved by mechanically treating the surface with a series of gradually refined abrasive materials. At this stage, the deep scratches must be removed because any surface defects on the final product are very noticeable. After this, the final process involves polishing the surface for 5-10 minutes to form a mirror-like, highly reflective mirror surface.[1]

Application

Our 8K/mirror polished stainless steel plate has good corrosion resistance and has been widely used in the food industry, pulp, paper equipment, heat exchangers, dyeing equipment, film processing equipment, pipelines, coastal areas, buildings, ship equipment, Fertilizers, food industry, coastal facilities, ropes, bolts and nuts.

Mainly used in all kinds of decoration or metal optical products.

The coloured stainless steel metal is also more suitable for cabinet decoration than other materials.

used in architecture

The development prospects of mirror 8K stainless steel

The colour of the mirror 8K stainless steel coil is beautiful. Meanwhile, it has good corrosion resistance and equipment properties.

Moreover, its colour will not fade for a long time. The colour changes with the angle of light.

Generally speaking, the colour surface layer of mirror 8K stainless steel coil can withstand 200 degrees high temperature.

And, when it is bent 90 degrees, its colour layer will not be damaged. Moreover, it will not deform.

So it is a good decoration material.

In the future, it can be used for decoration of hall wall panels, ceiling elevator car panels, car box panels, architectural decoration, signboards, etc.

Moreover, it is very suitable for wall decoration.

Mirror 8K storage recommendations

  1. People should keep Mirror 8K stainless steel in a clean, well-drained place. Moreover, these warehouses should be far away from mines with harmful gases or dust. Besides, people should clean the storage floor. This can maintain the cleanliness of the steel.
  2. People should not put the acid, alkali, and salt corrosive to steel in the warehouse together with mirror 8K stainless steel coil.
  3. People should classify different types of steel into each other. This avoids confusion and, most importantly, it prevents them from contacting corrosive objects.
  4. However, large steel pipes can be placed in the open air.
  5. For small and medium materials, people should put them in a well-ventilated shed. Besides, remember to order the pads below. This prevents it from wearing out.
  6. Materials with a smaller scale, high price and low corrosion resistance should be stored in the warehouse.

In addition, on rainy days, take care to take moisture-proof measures.

Conclusion

People mechanically grind and polish the BA, 2B or matte stainless steel surface to form mirror 8k stainless steel. Then, people roll mirror 8k stainless steel to form ordinary mirror 8k stainless steel coil.

Most of its materials are 2B and BA. Moreover, people mix water, nitric acid, iron-red powder, etc. according to a certain ratio to make a slurry.

Then, it can be completed through the following production process:

  1. Rough polishing
  2. Fine polishing
  3. Washingand drying
  4. Quality inspection
  5. Packing with protective film
  6. For the features of mirror 8K stainless steel coil, it has good corrosion resistance, heat fatigue resistance, tensile properties and welding properties. Therefore, its price is relatively cheap. So people use it widely. Meanwhile, it is also magnetic. Moreover, it is very durable.

At present, people mainly use it in various decoration or metal optical products.

That’s all for mirror 8K stainless steel coil. If this article is helpful, please share it with your friends.

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