201 stainless steel sheet | A detailed introduction

Introduction to 201 stainless steel sheet

201 stainless steel sheet is a low-nickel stainless steel sheet. Moreover, it is relatively cheap and has good corrosion resistance.

Today, when the cost is getting higher and the volatilization of nickel is large, the demand for 201 stainless steel sheet is also increasing.

However, the quality and price of 201 stainless steel plates on the market are uneven.

So, what do we need to know about non-201 stainless steel plates?

This article will have a detailed introduction to it.

What is 201 stainless steel sheet？

201 stainless steel sheet is a low-nickel stainless steel sheet. Moreover, it is a high-strength hardened austenitic stainless steel.

Meanwhile, its chromium content is 16%-18%, and its nickel content is 3.5%-5.5%.

Because the price of nickel is relatively high, to save a nickel, people made 201 stainless steel sheets.

Therefore, it is characterized by low nickel content.

Moreover, one cannot harden it by heat treatment.

However, people can cold work it into a sheet with high tensile strength.

Moreover, in some cases, it can replace other alloys with higher nickel content.

So how do people make stainless steel sheets?

Related article:

Overview of 201 J1 stainless steel tube

201 stainless steel sheet production

First, people can extract chromite from underground mines. Then, people crush chromite powder to produce chromite concentrate.

Moreover, chromite concentrate can be melted with iron ore, manganese, nickel, and other raw materials.

After melting, they are made into slabs.

Then, people put the slab on the hot rolling mill. At this time, the rolling mill reduces the thickness of the stainless steel and cools them with water.

Next, people transfer the slab to the cold rolling mill. At this time, black scales will cover it.

Finally, people remove the oxide scale through the return and pickling process.

In this way, people made stainless steel sheets.

However, before delivery, people have to inspect the specifications of various parameters such as the quality and durability of the stainless steel sheet.

And these include thermal stability, dimensional accuracy, durability, corrosion resistance, etc.

The 201 stainless steel hot-rolled sheet is strong enough. Moreover, people can use different techniques to make it’s surface smooth and delicate.

As for its thickness, the 201 stainless steel sheet has 0.5-4 mm thin sheets. Moreover, there are 4.5-5.5 mm thick sheets.

Besides, people have different manufacturing techniques for 201 stainless steel sheets for different purposes.

Next, let’s take a look together.

（If you want to know the 201 stainless steel pipe, you can check here Overview of 201 stainless steel pipe）

Water plating process

People use electrolysis to deposit metals or alloys on the surface of stainless steel.

Moreover, this can form a uniform, dense, and good bonding metal layer.

And this is water plating.

201 stainless steel sheet is gray and black with a water plating process. Moreover, the color tone of the 201 stainless steel sheet is unstable. Usually, it will be slightly dark blue.

Moreover, this phenomenon of mirror glass stainless steel sheets will be particularly significant.

At this time, people can solve this problem with high temperature no fingerprint recognition.

At present, people do black titanium gold, green bronze, yellow bronze, red bronze, and other blackening treatments with the water plating process.

Vacuum evaporation

Under high vacuum, people evaporate and condense metal filaments.

Then, the thin metal layer is attached to the plastic surface.

As for its time, the melting and evaporation of the metal only take a few seconds during the vacuum evaporation process.

Moreover, the entire cycle generally does not exceed 15s.

Meanwhile, its coating thickness is generally 0.8-1.2uM.

Electrophoresis

There are two types of electrophoresis processes: cathodic electrophoresis and anode electrophoresis.

Meanwhile, there are positive and negative poles in the electrophoresis environment.

In this way, they can form an electric field. Therefore, ions or charged colloids can do the directional movement.

Moreover, different electrophoresis fluids are different.

So, what are the characteristics of the 201 stainless steel plate?

Characteristics of 201 stainless steel plate

In fact, the composition of the 201 stainless steel plate determines its properties.

Form-ability of 201 stainless steel sheet

People use a 201 stainless steel plate to achieve most shapes.

However, people will work harden it.

Therefore, the 201 stainless steel plate cannot achieve the most stringent farming operation.

However, this can be achieved if people perform annealing treatment before forming.

Compared with 301 type, 201 stainless steel has similar bending, forming, and stretching characteristics.

Welding characteristics

People can weld 201 stainless steel plates to 18% chromium and 8% nickel steel by all conventional methods.

Moreover, one can use conventional chromium-nickel filler metals.

However, because the carbon content of the 201 stainless steel plate cannot be controlled below 0.03%.

Therefore, like other austenitic stainless steels, Type 201 is also prone to intergranular corrosion in the heat-affected zone of the weld.

Corrosion resistance

In mild to moderately corrosive environments, Type 201 stainless steel can resist corrosion.

Moreover, its corrosion resistance is close to Type 301.

And in many mild environments, it successfully replaced Type 304.

Magnetic properties of 201 stainless steel sheet

Type 201 stainless steel is made non-magnetic in the returned state.

However, it will become magnetic with cold working.

The performance of 201 is introduced above.

In fact, the 201 stainless steel plate is considered to be the cheaper one among various stainless steel plates, so it also has many disadvantages.

Disadvantages of 201 stainless steel sheet

The 18% chromium content is not balanced with the low nickel content and ferrite is formed.

Therefore, people reduce the chromium content in 200 series stainless steel to 15%-16%, or 13%-14%.

Therefore, its corrosion resistance is not as good as other similar stainless steels.

Moreover, in the deposition zone and acidic conditions, manganese and copper reduce the effect of passivation.

Therefore, its durability is not as good as the 304 stainless steel plate.

Also, in production, people often cannot control the residual sulfur and carbon content. And this caused people to be unable to track the material. Even when the material is recycled, people cannot track the material.

At this time, people need to explain their Cr-Mn content. Otherwise, they will become a dangerous scrap mixture. And this will lead to the excessively high content of castings.

Price quotation

Because the chemical composition of the materials produced by each steel plant is different, the equipment, technology, and quality control are also very different.

And the quality of the 201 stainless steel sheets on the market is uneven.

So, the price is also different.

In order to save the purchase cost and meet the material properties of the demand, people need to describe the demand in detail and ask the manufacturer to provide the material certificate.

Next, let’s take a look at the types of 201 stainless steel plates.

The specific suggestion of how to buy it, you can check here Buy stainless steel coil from China  How to buy stainless steel pipe   and How to buy the right stainess steel tube.

Or you can also check our products here Stainless steel sheet.

If you want to check more products, you can visit WJH stainless steel

Type of 201 stainless steel sheet

According to different surface treatments, 201 stainless steel plate has the following types:

Stainless steel wire drawing board

The brushed stainless steel plate has a silky texture.

Moreover, its surface is dull and smooth.

Meanwhile, its wear resistance is better than ordinary bright stainless steel sheets.

Besides, hardcover high-end hotels and clubs often use brushed stainless steel sheets.

Mirror stainless steel plate

The mirror stainless steel plate is a polished stainless steel plate. Moreover, it has 8k and 8S

As for its performance, it is smooth, durable, never rusty, and easy to clean.

Moreover, the decoration of hotels, shopping malls, office buildings, waiting rooms, etc. usually use mirrored stainless steel plates.

(Check our products here Mirror Gold Stainless steel sheet)

Color stainless steel sheet

Color stainless steel sheets are with various bright colors. Moreover, they can change color with different lighting angles.

Meanwhile, it has good corrosion resistance and good mechanical properties.

And the color layer can withstand a high temperature of 200 degrees. Moreover, it will not fade for a long time.

As for its usage, it is often used in elevator car panels, interior wall panels, ceiling decoration panels, etc. of high-end buildings.

Besides, it is also used for signboards and nameplates.

Stainless steel coated steel plate

The surface of the stainless steel coated steel plate has a composite of stainless steel, copper, nickel, titanium, and other metals.

Moreover, this coating surface can replace expensive stainless steel.

And its main advantages are the simple production process, low cost, and better processing performance than pure stainless steel.

Moreover, it can completely replace stainless steel plates when used as indoor and outdoor decorative parts.

Stainless steel microporous sound-absorbing board

The surface of the stainless steel microporous sound-absorbing panel has a pattern of micropores.

Moreover, these patterns have a sound-absorbing effect and a certain decorative effect.

Therefore, its sound absorption effect and decorative effect are good.

Besides, indoor ceiling, various walls, and other places often use this kind.

Stainless steel checkered plate

The surface of the stainless steel checkered sheet is uneven.

Moreover, the earliest stainless steel checkered plate pattern was horizontal and vertical stripes.

At present, there are various products: square, diamond, leather, ceramic tile, corrugated, and so on.

And its main performance is anti-slip and anti-corrosion.

Therefore, the construction curtain wall, railway transportation, machinery manufacturing, and other industries often use stainless steel checkers sheets.

(Check our products here Stainless steel pattern sheets)

Related articles:

Introduction to embossed 8k stainless steel coil

Introduction of Embossed stainless steel pipe

Titanium mirror panel

There is a titanium nitrogen compound on the surface of the titanium gold panel.

Moreover, this thin layer can be golden yellow, bright gray, or color.

Meanwhile, the titanium mirror panel will not be oxidized and will not color easily.

As for its performance, it is wear-resistant and has high strength.

Moreover, it has a strong decorative effect.

Therefore, much high-end building interior decoration uses it.

Color profiled steel plate

The surface of the colored heterogeneous steel plate has galvanized and pressed corrugations.

People can make it have various colors through surface treatment.

Moreover, it has good texture, corrosion resistance, durability, and easy installation.

Meanwhile, its decoration effect is very good.

Therefore, it can also be as a non-load-bearing siding for building curtain walls.

And it includes building roofs, wall panels, wall decorations, and so on.

Application

The cost of stainless steel has increased.

Moreover, nickel has high volatility.

Therefore, the 201 stainless steel plate is becoming more and more attractive.

It is not a good choice for structures that may have corrosive effects.

However, in most applications, there is no loss of corrosion resistance.

Therefore, it can replace Type 301 stainless steel in many applications.

Moreover, due to its polishing, no bubbles, no pinholes, etc., it is a high-quality material for the production of various watch cases and watchband back covers.

And in the chromium nitride temperature range, if people heat 321 or 347 for a long time, it may cause them to corrode.

However, the 201 stainless steel material has a strong resistance to high-temperature sensitization.

Moreover, this can prevent lower temperature inter-granular corrosion.

Therefore, the 201 stainless steel plate is very suitable for high-temperature applications.

In general, it is a mid-range product with multiple qualities.

However, 201 stainless steel plates also require proper maintenance.

Let’s take a look at how to maintain it.

Maintenance of 201 stainless steel plate

In the dry season, people only need to clean up the following floating dust and stains every 3-4 months.

Then, people wipe the surface with cold water.

However, in strong typhoons or rainy weather, people should pay attention to immediately wipe the surface of the stainless steel plate with cold water.

And this can prevent the salty liquid from merging with floats and stains from corroding the surface of the 201 stainless steel plate.

Conclusion

201 stainless steel plate is a low-nickel stainless steel plate. Moreover, it is a high-strength hardened austenitic stainless steel.

People use chromite, iron ore, manganese, nickel, and other raw materials extracted from underground mines to make slabs. Then, after hot rolling and cold rolling, 201 stainless steel plate is made.

After that, there are different processes according to different purposes and uses.

And including water plating processing technology, vacuum evaporation, electrophoresis technology.

As for its properties, its bend-ability, form-ability, and tensile properties are similar to those of Type 301.

Moreover, people can weld 201 stainless steel plates to 18% chromium and 8% nickel steel by all conventional methods. Meanwhile, in mild to moderately corrosive environments, 201 has corrosion resistance.

However, it also has its disadvantages.

For example, its corrosion resistance is not as good as other similar stainless steels.

Moreover, its durability is not as good as Type 304.

During the production and recycling process, people cannot trace their materials.

However, with the development of the stainless steel industry, there are many types of 201 stainless steel plates:

1. Stainless steel wire drawing board
2. Mirror stainless steel plate
3. Stainless steel coated steel plate
4. Microporous sound-absorbing board
5. Stainless steel checkered plate
6. Titanium mirror panel
7. Color profiled steel plate

As for its application, the 201 stainless steel plate is very suitable for high-temperature applications.

That’s all for the 201 stainless steel sheet today.

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