Changsha HCADTO Stainless Steel Co., Ltd.

Stainless steel angle bar  is carbon structural square steel commonly used in the construction field. The length over 12.5cm is a large stainless steel angle bar. The length between 12.5cm and 5cm is a medium-sized stainless steel angle bar. The length less than 5cm is small stainless steel angle bar. Commonly uses are to make metal components and building frames. There are several requirements for the use of stainless steel angle bar: good plastic deformation, welding performance and good mechanical strength. The finished stainless steel angle bar is delivered in hot-rolled state. 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.

Stainless steel channel bar   is a kind of strip steel with channel section. It is a kind of carbon structural steel used in the construction and machinery. The price of stainless steel channel bar varies according to different specifications. The specifications of channel bar are expressed by height (H), leg width (B), waist thickness (D), etc. Starting from No. 5-40, the corresponding height is 5-40cm. Also the price of stainless steel channel bar is based on different surface treatment methods. The surface treatment method of channel bar is hot-dip galvanizing. The cost is determined according to the price of raw zinc. And the price of channel bar will different with different thickness of the zinc layer. 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 ...

1. The surface of the   stainless steel plate   covered by dust containing metal elements. They are form a micro battery in the moist air, which triggers an electrochemical reaction, which damaged protective film of plate. That is electrochemical corrosion. 2. The organic juice on the stainless steel plate will form organic acid in the water and oxygen, which will corrode the stainless steel plate for a long time. 3. The stainless steel plate contains acid, alkali, and salt substances (such as alkaline water and lime water splashing on the decoration wall), causing local corrosion. 4. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), contact with condensed water will form sulfuric acid, nitric acid, and acetic acid liquid spots, causing chemical corrosion. The above can damage to the protective film on the surface of stainless steel plate which cause to corrosion.

As we know that stainless steel is resistant to high temperature, in theory, the use temperature of 304  stainless steel plate  is 190~860 degrees Celsius, but in actual, the use temperature of 304 stainless steel plate is not as high as 860 degrees Celsius. Why does this happened? In fact, the use temperature of 304 stainless steel pate is cannot be kept in between 450 and 860 degrees Celsius. It because when 304 stainless steel reaches 450 degrees will have a critical point. When get the point the stainless steel will dilute the chromium around the carbon element which will form chromium carbide. The chromium-depleted area appears where the diluted chromium originally exists that would change the performance and material of the stainless steel. In addition, the temperature of 450 degrees Celsius with the yield force will turn austenite into Martensite. Therefore, 304 stainless steel plate is should used between 190~450 degrees Celsius. HCADTO Stainless Steel Co., Ltd.  ...

People are closely related to  stainless steel pipes  in daily life, but few people know how to maintain it.  HCADTO  summarized the maintenance of stainless steel pipes' tips for everyone, I hope it will be helpful to everyone!  　 　    1. The surface of stainless steel pipe needs to be cleaned and maintained regularly, so as to maintain its gorgeous exterior and prolong the service life.    2. For the protection of stainless steel pipe, just pay attention to daily hygiene. After cleaning each time, remember to wipe off the water stains in the stainless steel, so that it will not cause rust or yellowing.    3. In the maintenance of stainless steel pipe, remember to scrub more and less contact with alkaline substances, because alkaline substances will aging or rust the stainless steel, only in this way can the stainless steel be effectively maintained.  　　   4. Preservation is also very important. There is a passivation fil...

The appearance quality of  stainless steel angle bar  is stipulated in the standard, and it is required that there should be no harmful defects such as delamination and cracks in usage. The angle bar standard also stipulates the allowable range of geometric shape deviation, which includes curvature, side width, side thickness, apex angle, theoretical weight, etc. Let's take a look at the steps required for chemical composition test. 1. Composition index: The chemical composition of stainless steel angle bar belongs to the general structural rolling steel series, the main inspection indexes are carbon, manganese, and sulfur. Depending on the brand, the content ranges from 0.22% C, 0.30-0.65% Mn: 0.060% P, 0.060% S etc.. 2. Inspection method: The inspection methods to test the chemical components are GB223, JISG1211-1215, BS1837, BS Manual 19, гост 22536, etc.

For  stainless steel pipes , hardness testing is very important, so how to test the hardness of stainless steel pipes? Let's take a look at some methods. Stainless steel pipe inner diameter > 26 mm, use Roche hardness tester. Stainless steel pipes inner diameter> 6mm, wall thickness <13mm, use W-B75 hardness tester. Because this test is quick and easy, it is suitable for fast and non-destructive testing of stainless steel pipes. Stainless steel pipes inner diameter> 30mm, wall thickness < 1.2mm, use a hardness tester to test the hardness of HRT or HRN. Stainless steel pipe inner diameter>30mm, wall thickness>1.2mm, stainless steel is used for HRB, HRC hardness test.

Stainless steel angle bar   is a long strip of steel whose two sides are perpendicular to each other and form an angle. There are equilateral stainless steel angle bar and unequal stainless steel angle bar. Stainless steel angle bar mainly used to make frame structures, such as the high-voltage power transmission tower, the frame on both sides of the main beam of the steel structure bridge, the column and boom of the tower crane on the construction site, the column and beam of the workshop, etc., small places such as flower shelves, and air-conditioning and solar-powered shelves are hung under the windows. Widely used in building structures and engineering construction, such as: house beams, ship beams, industrial furnaces, etc. 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...

There are a lot of 304  stainless steel pipes  on the market, it wildely used in many filed, then how to choose the high-quality 304 stainless steel pipes? Here HCADTO will teach you about choose the high-quality 304 stainless steel pipe. Generally, high-quality 304 stainless steel pipes have its characteristics: 1. Checking if there is "304" printed on the steel pipe, and ask for the quality certificate and quality guarantee. 2. Test with weak acid reagent, put them on steel pipe and check after 30 seconds, material 304 will not change color, and 201 will turn black. 3. Check the outer surface and inner wall of pipe to see if it is bright and smooth, whether the thickness is uniform, or rough etc.. 4. When purchasing, choose famous-brand products assessed by the Bureau of Quality and Technical Supervision. Long-term use testimony and good reputation among customers are the most direct and effective way to find good supplier.