304 material self-drilling screw characteristics

Stainless steel generally refers to steel that has the ability to resist corrosion by air, water, acid, alkali salt or other media. According to the different alloy components, the emphasis is on rust resistance and acid resistance. Although some steels are rust-proof, they are not necessarily acid-resistant, and acid-resistant steels are usually rust-proof.

Classification of stainless steel

According to organizational structure: austenitic stainless steel, martensitic stainless steel, ferritic stainless steel, duplex stainless steel;

According to the main chemical composition of steel: chromium stainless steel, chromium nickel stainless steel, chromium nickel molybdenum stainless steel, ultra-low carbon stainless steel. (Used to produce fasteners) (Guide: Installation guide for stainless steel self-drilling screws)

304 stainless steel belongs to austenitic stainless steel, the steel grade and characteristics of austenitic stainless steel

It is non-magnetic under normal conditions, and slightly magnetic after cold working; it can maintain its austenite structure at various temperatures without phase transformation, so it cannot be hardened by heat treatment. However, cold work can harden it and increase its strength.

The stainless steel self-drilling screw of 304 material does not require pre-drilling; it can directly penetrate aluminum-plastic panels; plastics; plastic steel doors and windows; glass curtain walls, etc.; to achieve drilling; tapping; locking once; Save labor; save effort. Although it has good corrosion resistance; but its mechanical properties are not high; so in the use of occasions should pay attention: can not be used for iron plate. The iron plate needs to be drilled with 410 material or composite stainless steel.

304 material composition table:

C:0.08 Si:1.00 Mn:2.00 P:0.045 S:0.030 Ni:8.00-10.5 Cr:18.00-19.00

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