Stainless Steel Angles is one of the most widely used stainless steel profiles. It has the characteristics of stable structure, corrosion resistance, strong deformation resistance and stable chemical properties. Compared with other metal profiles, it has unparalleled advantages.
Definition of the name of stainless steel angle steel
Stainless steel angle steel is one of the most widely used stainless steel profiles. It has the characteristics of stable structure, corrosion resistance, strong deformation resistance and stable chemical properties. Compared with other metal profiles, it has unparalleled advantages.
Common stainless steel materials for manufacturing stainless steel angle steel
Stainless steel angle steel can be classified according to the material, the common ones are martensitic stainless steel, ferritic stainless steel, duplex stainless steel, austenitic stainless steel and precipitation hardening stainless steel.
1. Austenitic stainless steel
The output and consumption of this type of material occupy the mainstream position of the product, accounting for 70.1% of the total stainless steel. is a very important category of stainless steel. According to the ratio of alloy, austenitic stainless steel can be divided into two categories: chromium-nickel steel and iron-chromium-manganese steel. The former uses nickel as the austenitizing element and is the main body of austenitic steel. Considering the production cost, the latter is a nickel-saving steel that replaces expensive nickel with manganese and nitrogen. Austenitic steel has good corrosion resistance, good comprehensive mechanical properties and process properties, but weak strength and hardness.
2. Ferritic stainless steel
Ferritic stainless steel contains 11%-30% chromium and basically does not contain nickel. It is a nickel-saving steel. The structure is mainly ferrite in use. Ferritic stainless steel has higher strength, lower cold work hardening tendency, and excellent resistance to chloride stress corrosion, pitting corrosion, crevice corrosion and other local corrosion, but it is sensitive to intergranular corrosion and has poor low temperature toughness.
3. Duplex stainless steel
It is traditionally believed that there is more than 15% ferrite on the austenite matrix. On the contrary, if there is more than 15% austenite on the ferrite matrix, we can call it austenite + ferrite duplex stainless steel. Duplex stainless steel combines the advantages of both austenitic and ferritic steels.
4. Martensitic stainless steel
Martensitic stainless steel is a kind of steel whose properties can be adjusted by means of heat treatment, and its strength and hardness are high. Precipitation-hardening stainless steel is a steel that precipitates carbides in the steel by means of heat treatment, so as to achieve the purpose of improving the strength.
The above are all common materials used to make stainless steel angle steel. In addition, the above materials are also widely used to make other forms of profiles, plates, pipes, etc.
Specifications of common stainless steel angle steel
1. Size notation
When we see this expression: "∠30×30×3", it means that the equilateral stainless steel angle steel with a side width of 30 mm and a side thickness of 3 mm. This is expressed in millimeters of edge width x edge width x edge thickness.
2. Model notation
The model is the number of centimeters of the side width, such as ∠3#. The model cannot represent the product information of the same model with different edge thicknesses. Therefore, when the buyer and the seller customize the contract, they still need to fill in the edge width and edge thickness of the stainless steel angle steel, instead of using the model alone to avoid errors.
At present, the common domestic stainless steel angle steel specifications are 2 to 20, and the number of centimeters on the side is the number. The same angle steel has about 2-7 different side thicknesses. The imported stainless steel angle steel indicates the actual size and side thickness of both sides and the relevant standards. Generally, the side length of large stainless steel angle steel is more than 12.5cm, the side length between 12.5cm and 5cm is medium stainless steel angle steel, and the side length less than 5cm is small stainless steel angle steel.
Delivery length of stainless steel angle
In addition to expressing stainless steel angle products by side thickness, in the actual transaction process, it is also necessary to order products according to length. to meet the needs of different application scenarios. The delivery length of stainless steel angle steel is divided into two types: fixed length and double length. The fixed length selection range of domestic stainless steel angle steel has four ranges of 3-9m, 4-12m, 4-19m and 6-19m according to the different specifications. The length selection range of stainless steel angle steel made in Japan is 6-15m. The section height of the unequal-sided stainless steel angle steel is calculated according to the long side width of the unequal-sided stainless steel angle steel.
Appearance quality requirements of stainless steel angle steel
Stainless steel angle steel generally requires no harmful defects in use, such as delamination, scarring, cracks, etc. The surface quality is specified in the standard, and the allowable range of the geometric shape deviation of stainless steel angle steel is also specified in the standard, which generally includes the curvature, side width, side thickness, top angle, theoretical weight, etc., and specifies stainless steel angle steel, stainless steel angle steel There must be no significant twist.
Common uses of stainless steel angle steel
Stainless steel angle steel is widely used in various building structures and engineering structures, from civil beams, warehouse shelves, equipment rack bases, to industrial bridges, transmission towers, lifting and transportation machinery, and even military ships, industrial furnaces, Reaction towers, container racks. According to the different needs of the structure, it can be composed of various stress-bearing components, and it can also be used as a connecting piece between components.
Compared with other materials such as angle iron, stainless steel angle steel is unparalleled in material performance. However, the cost is high, and not all applicable occasions will use stainless steel angle steel for construction.
Post time: Jun-17-2022