Changsha HCADTO Stainless Steel Co., Ltd.

Stainless steel angle bar   has the ability to resist atmospheric oxidation, that is, non-rust, and it also has the ability to resist corrosion in media containing acid, alkali, and salt, that is, corrosion resistance. However, the size of its anti-corrosion ability varies with the chemical composition of the steel itself, the mutual state, the use conditions and the type of environmental media. Such as 304 material, in a dry and clean atmosphere, it has absolutely excellent corrosion resistance, but it is moved to the seaside area, in the sea fog containing a lot of salt, it will quickly rust. Therefore, it is not any kind of stainless steel angle bar, which is corrosion-resistant and does not rust at all times.　　  Therefore, in order to ensure that the metal surface is permanently bright and not rusted, we recommend:  1. The surface of the decorative stainless steel angle steel must be cleaned and scrubbed frequently to remove attachments and eliminate external factors...

The solution treatment process  is to increase the corrosion resistance of  stainless steel pipe . 1. Intermediate aging After solution treatment, reheated to (760±15)°C and kept for 90min.. Because Cr23C6 carbides are precipitated from austenite, the content of carbon and alloying elements in the austenitic 904L stainless steel pipe will reduce while the Ms point will increase. After cooling to room temperature at 70°C, the martensite + α ferrite + retained austenite structure is obtained, and the retained austenite is decomposed after aging at 510°C. 2. High temperature adjustment and cryogenic treatment method After the solid solution is heated to 950℃ for 90 minutes, a small amount of martensite can be obtained by cooling to room temperature due to the increase of the Ms point, then cold treatment at -70℃ and holding for 8 hours to get few martensite. 3. Cold deformation method After solution treatment, it is cold deformed at room temperature. The amount of martensite form...

The   stainless steel angle bar   is an extremely thin, strong, dense and stable chromium-rich oxide film (protective film) formed on its surface to prevent oxygen atoms from continuing to penetrate and continue to oxidize, thereby gaining corrosion resistance. Once for some reason, the film is continuously destroyed, the oxygen atoms in the air or liquid will continue to infiltrate or the iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will also be continuously affected. Rust. There are many forms of damage to the surface film, and the following are more common in daily life: 　　  The surface of the stainless steel angle bar accumulates dust containing other metal elements or attachments of foreign metal particles, in humid air , The condensed water between the attachment and the stainless steel angle steel connects the two to form a micro battery, which triggers an electrochemical reaction and damages the protective ...

Stainless steel angle bar  is a widely used profile. In order to ensure the quality of the product, we must weld it before use. Therefore, it is important to know the correct operation method, which will benifit to the usage in the future. Here, we will help you to understand the preparetion work before welding. 1. It is very important for the staff to wear professional working clothes and do a good job of protection during welding. 2. It is necessary to check the grinding wheel before using the electric grinding tool, and if it is need to replace the grinding wheel. 3. Safety belts should be worn when working at heights with stainless steel angle bar, and the scaffolding should be safe and reliable. 4. If there are flammable and explosive materials underneath during high-altitude operations, measures should be taken in advance to prevent splashes from falling. 5. The welding wire must not be connected to the equipment with induction coil, and the part connected with the welding to...

The stamping process of  stainless steel angle bar  includes drawing process, bulging process, flanging process and bending process. These four processes have their own characteristics. 1. Drawing process. Deep drawing is a stamping process, which uses a special die to make hollow parts from the blanks obtained after punching or cutting. It is formed by the fluidity and elongation of the stainless steel angle bar material. 2. Bulging forming process. Bulging is a stamping method that uses a mold to force the thickness of the blank to decrease and the surface area to increase, so as to obtain the geometric shape of the part. The characteristic is that the blank is crushed by the blank holder and cannot flow into the mold. This depends entirely on the extension and forming of the stainless steel angle bar material itself. 3. Flanging forming process. Flanging is a stamping method in which the hole or outer edge of the blank is turned into a vertical edge with a die. In the middl...

Stainless steel plate  has good corrosion resistance, heat resistance, low temperature strength and mechanical properties that make it widely used in many field. When spraying stainless steel plates, you need to pay attention to some details, so what should pay attention when painting stainless steel plate? 1. Basic treatment, clean the surface of stainless steel plate. Use a knife to remove the residual paint, or use sandpaper to polish the surface, and then use sandblasting. After the surface is cleaned, it must be roughened to increase the adhesion area of the primer. 2. Spray primer. The function of primer is to prevent oxidation of the metal surface and then connect the topcoat and metal firmly. 3. Top coat. Because it is in the open air, the paint film is required to have good weather resistance. It is recommended to use polyurethane paint, which is a two-component paint with a curing agent. It does not need to be baked, and the curing agent can be used at room temperature. 4...

Stainless steel H bar is used in large-scale multi-story buildings in China, such as Beijing International Trade Center and Beijing Jingguang Center. The demand for H bar accounts for 40%-60% of the total stainless steel plates. Why do multi-storey buildings choose stainless steel H bar? Because it  is lighter, which can reduce the weight of building structure by 30%-40%. Next, HCADTO will take you to know the application of stainless steel H bar. 1. Steel frame structure load-bearing hanger for industrial production buildings 2. Design of steel pile and foundation pit support for slope engineering 3. Design of mechanical equipment such as chemical machinery and power engineering 4. Long-span steel bridge steel building components 5. Frame shear wall for ships, machinery and equipment 6. Room beam hangers for trains, cars, and large tractors 7. Seaport belt conveyor, high-speed clapboard hanger HCADTO Stainless Steel Co., Ltd.  the Stainless Steel Division of ADTO GROUP, speci...

  Stainless steel flat bar  is a rectangular steel with slightly pure edges. It can be semi-finished steel profile. So what are the requirements for appearance? 1. The surface quality of stainless steel flat bar is stipulated in the standard, and it is required that there should be no harmful defects in use, such as delamination, scarring, and cracks. 2. The allowable range of geometric shape deviation is also specified in the standard, which includes curvature, side width, side thickness, apex angle, theoretical weight, etc., and requires the significant torsion. HCADTO Stainless Steel Co., Ltd.  the Stainless Steel Division of ADTO GROUP, specializes in manufacturing stainless steel pipes, stainless steel angle bar, flat bar, round bar, square bar, hexagonal bar and channel bar in various grades and sizes. Our years of production experience and manufacturing facilities will ensure the good quality and competitive duration of our products.