Stainless steel, as the most common material in daily life, has both the luster texture of metal and superior material properties. It not only looks good, but also has a relatively low cost. Which designer would not love it?
Today, we will talk about stainless steel from the following aspects:
1. What is stainless steel?
2. Common types of stainless steel
3. Construction technology of stainless steel
4. The practical application of stainless steel
1. What is stainless steel?
1. Definition of stainless steel
Stainless steel is the abbreviation of stainless acid-resistant steel.
It is resistant to weak corrosive media such as air, steam, and water and is called stainless steel.
It is resistant to chemical corrosion media (acid, alkali, salt, etc.) Corroded steel is called acid-resistant steel.
Due to the difference in the chemical composition of the two, their corrosion resistance is different.
Ordinary stainless steel is generally not resistant to chemical corrosion, while acid-resistant steel is generally stainless.
The term “stainless steel” does not simply refer to one type of stainless steel, but to more than one hundred industrial stainless steels, each developed to perform well in its specific field of application.
There are usually only six steel grades associated with building construction applications. They all contain 17-22% chromium, and the better grades also contain nickel. The addition of molybdenum can further improve atmospheric corrosion, especially corrosion resistance to chloride-containing atmospheres.
2. Invention and use of stainless steel
The military production department ordered Brearley to develop high-strength wear-resistant alloy steel, specializing in solving the wear problem of the gun chamber. The military production department ordered Brearley to develop high-strength wear-resistant alloy steel, specializing in solving the wear problem of the gun chamber.
One day, Brearley and his assistants experimented with a domestic alloy steel containing a large amount of chromium. After the wear resistance test, it was found that the alloy was not wear-resistant, indicating that it could not be used to make guns, but the experimental results proved that it is not afraid of a piece. Stainless steel for acids, bases, salts.
This stainless steel was invented by Mullah in Germany in 1912 but did not know what it was used for. So, Brierley thought to himself: “This kind of steel that is not wear-resistant but corrosion-resistant, can’t make guns, can it be used as tableware?”
Then he made stainless steel fruit knives, forks, spoons, fruit boards, and folding knives. This is where the use of “stainless steel” comes into play.
Since then, metallurgists have developed many new steel grades by adding Mo, Cu, Nb, Ti, and other elements to stainless steel or reducing steel grades such as C, Si, Mn, S, F, and other elements for different purposes and uses. Precipitation hardening (precipitation hardening) stainless steel and duplex stainless steel have also been successfully developed.
Today, stainless steel is widely used and is also a very important building material, used in industry, construction, home decoration, as well as in the food and medical industries.
2. Common types of stainless steel
Stainless steel is rich in color and variety, and can usually be classified according to the shape of the material and the way of surface processing.
1. According to the different classifications of material shapes
Depending on the shape of the material, it can usually be divided into stainless steel board, stainless steel honeycomb panel, stainless steel profile, stainless steel screen, and stainless steel artwork.
D. Stainless Steel Screen
E. Stainless Steel Artwork
2. According to the different classifications of surface processing methods
Stainless steel board is the most commonly used in construction and decoration. According to different surface processing methods, it can be divided into brushed stainless steel, mirror stainless steel, embossed stainless steel, etched stainless steel, sandblasted stainless steel, perforated stainless steel, electroboardd stainless steel, and colorful stainless steel.
A. Brushed Stainless Steel
B. Mirror Stainless Steel
C. Embossed Stainless Steel
D. Etched Stainless Steel
E. Sandblasted Stainless Steel
F. Perforated Stainless Steel
G. PVD Electroplated Stainless Steel
H. Symphony Stainless Steel
3. Stainless Steel Construction Process
The construction process of stainless steel board in indoor spaces is similar to that of the aluminum board. The following is a brief description of the construction process of stainless steel board by taking the dry hanging construction process of stainless steel wall as an example.
Specific construction process:
Construction preparation → Elastic line positioning → Fixed connector → install joist → install stainless steel board → Caulking treatment → Finished product protection.
1. Construction preparation
First of all, according to the design drawings, the actual measurement and layout should be carried out on the site to determine the size and quantity of the required boards, and then the boards should be typeset and numbered according to the design drawings and on-site conditions.
2. Snap line positioning
According to the requirements of the design drawing, accurately pop up the joist installation position on the wall, and mark the position of the fixing parts.
3. Fixed connector
When the wall has no embedded parts, use expansion bolts to fix the connecting parts. If there are embedded parts, the connecting parts can be welded with the embedded parts on the wall, and rust-proof treatment should be done at the welds.
4. Install the joist
Usually, steel joists, aluminum alloy profile joists, etc. are used as supporting parts. The post and the connector can be fixed by means of bolts or welding.
5. Install the stainless steel board
When installed, the stainless steel board can be fixed with screws. First, use an electric drill to drill a hole at the position where the screw is screwed, then tighten the board with self-tapping screws and fix it on the joist piece by piece.
6. Caulking treatment
Under normal circumstances, the gap between the board and the board is 10~20mm during installation, and elastic materials such as sealant can be used for caulking.
7. Finished product protection
If there is no original protective film, after the installation is completed, it needs to be covered with plastic tape to protect it.
8. Precautions
① During the installation of connectors, joists, and boards, check the elevation and centerline position at any time to ensure the accuracy of installation.
② Connection points, fixed points, etc. should be painted with anti-rust paint before proceeding to the next step for anti-rust treatment.
③ Before the board is installed, the preliminary construction needs to be checked and accepted to ensure that the construction process is qualified before other construction steps.
④ Try not to contact with other hard things during the installation process, so as to avoid surface scratches affecting the effect.
4. Practical application of stainless steel
The construction industry is one of the earliest fields of stainless steel application. In terms of architectural decoration, at present, stainless steel is mainly used in the exterior walls of buildings, the decorative surfaces of interior walls, ceilings and outer columns, handrails, railings, partitions, floors, and elevator walls. Panels, doors and windows, curtain walls, and other interior and exterior decorations and components.
Let’s take a look at the practical application cases of stainless steel from both outdoor and indoor applications.
1. Outdoor Application
2. Indoor Application
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