Definition of the name of Stainless steel angle bar
Stainless steel angle bar generally refers to the stainless steel material, both sides at right angles to the long steel. According to the length of the edge is divided into equilateral Stainless steel angle bar and Stainless steel angle bar. Equal width of the two sides is equal to the angle of stainless steel.
The common manufacturing of stainless steel of Stainless steel angle bar
Stainless steel angle bar can be classified according to the material, the common martensitic stainless steel, ferritic stainless steel, duplex stainless steel, austenitic stainless steel and precipitation hardening stainless steel and so on.
1. Austenitic stainless steel
Such material production and consumption accounted for the mainstream position of the product, accounting for 70.1% of the total stainless steel. Is a very important category in stainless steel. In accordance with the ratio of alloys, austenitic stainless steel can be divided into chrome-nickel steel and iron-chromium-manganese steel two categories. The former to nickel for the austenitic elements, is the main body of austenitic steel, taking into account the cost of production, which is based on manganese, nitrogen instead of expensive nickel section nickel steel. Austenitic steel has good corrosion resistance, good mechanical properties and process performance, but the strength, hardness performance is weak.
2. Ferritic stainless steel
Ferritic stainless steel containing chromium 11% -30%, the basic non-nickel, is a nickel-plated steel, in the use of the structure to ferrite-based. The ferritic stainless steel has higher strength, and cold work hardening tendency is low, resistance to chloride stress corrosion, pitting corrosion, crevice corrosion and other local corrosion performance, but sensitive to intergranular corrosion, low temperature toughness is poor.
3. Duplex stainless steel
Traditionally, there is more than 15% ferrite in the austenitic matrix. On the other hand, austenite + ferrite duplex stainless steels with more than 15% austenite in the ferrite matrix can be called. Duplex stainless steels combine the advantages of both austenitic and ferritic steels.
4. Martensitic stainless steel
Martensitic stainless steel is a kind of heat treatment can be used to adjust its performance of steel, its strength, hardness is high. Precipitation hardening of stainless steel is by means of heat treatment to precipitate carbide precipitation, so as to achieve the purpose of enhancing the strength of steel.
The above are common for the production of Stainless steel angle bar material. In addition, the above material is also widely used in the production of other forms of profiles, plates, pipes and so on.
Standard Specification for Common Stainless steel angle bars
1. Dimension representation
When we see this statement: "∠ 30 × 30 × 3", which means the edge width of 30 mm, edge thickness of 3 mm Stainless steel angle bar of the equilateral. This is expressed in millimeters in width, width, and thickness.
2. Model representation
Model is the width of the cm, such as ∠ 3 #. The model can not be said that the same type of thick side of the different product information, and thus buyers and sellers in the custom contract, or the need to Stainless steel angle bar side edge width, thick side fill in complete size, rather than using a separate model, in order to avoid ambiguity, resulting dispute.
The current common domestic Stainless steel angle bar specifications for the 2 to 20, to the side length of cm number, the same number angle of about 2-7 different edge thickness. While imports of Stainless steel angle bar marked on both sides of the actual size and edge thickness and indicate the relevant standards. Generally large Stainless steel angle bar side length 12.5cm above, 12.5cm-5cm between the medium-sized Stainless steel angle bar, side length of 5cm for small Stainless steel angle bar.
Delivery length of Stainless steel angle bar
In addition to the thickness of the edge to indicate the angle of stainless steel products, in the actual trading process, but also in accordance with the length of product orders. To meet the needs of different application scenarios. Stainless steel angle bar of delivery length of sub-length, double the length of two kinds of domestic Stainless steel angle bar of the length of the selection range according to the specifications of the different 3-9m, 4-12m, 4-19m, 6-19m four range. Japanese-made Stainless steel angle bar of choice for the length of 6-15m. The height of the cross-section of the unequal-sided Stainless steel angle bar is calculated by the long side width of the unequal-angle Stainless steel angle bar.
Appearance quality requirements for Stainless steel angle bar
Stainless steel angle bar generally do not require the use of harmful defects, such as stratification, scarring, cracks and so on. Surface quality in the standard have specific provisions, Stainless steel angle bar angle deviation of the geometry of the allowable range is also provided in the standard, generally including the curvature, edge width, edge thickness, the angle of the theoretical weight, and provides Stainless steel angle bar, Stainless steel angle bar There shall be no significant reversal.
Common Uses for Stainless steel angle bars
Stainless steel angle bar is widely used in all kinds of building structure and engineering structure, from the civil beam, and storage shelves, equipment rack base to industrial bridges, transmission towers, lifting transport machinery, and even military ships, industrial furnaces, Reaction tower, container rack. According to the different needs of the structure composed of a variety of force components, but also for the connection between the components.
Stainless steel angle bar compared to other materials (such as angle iron), the material properties unparalleled. But the cost is high, not all occasions will be used Stainless steel angle bar to build.
Appendix: Common Stainless steel angle bar material and specifications
Stainless steel angle bar Spot Material: 201,202,301,302,304 (0Cr18Ni9), 304L (00Cr19Ni10), 316 (0Cr17Ni12Mo2), 316L (00Cr17Ni14Mo2), 309S (0Cr23Ni13), 310S (0Cr25Ni20), 321 (1Cr18Ni9Ti), 410S 1Cr13), 420J1 (2Cr13), 430 (1Cr17), 317, 347, 403, 405, 409L.
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