Stainless steel screw selection principle

Stainless steel screw selection principle

Stainless steel generally refers to steel that has the ability to withstand the corrosive effects of air, water, acids, alkali salts or other media. Depending on the composition of the alloy, it focuses on rust and acid resistance. Although some steels have rust properties, they are not necessarily acid-resistant, and acid-resistant steels usually have rust properties. Austenitic stainless steel is mainly used for the production of fasteners. In people's daily life, stainless steel is often referred to as austenitic stainless steel.

The stainless steel fasteners we use nowadays are mainly made of austenite 302, 304, 316 and "low nickel" 201.

Stainless steel screw products mainly include: hexagon socket head bolt, hexagon socket head cap screw (cup head), hexagon socket recessed set screw (concave end machine meter), hexagon socket flat end set screw (flat end machine meter), hexagon socket tip Set screw (tip machine meter), hexagonal column end set screw (column end machine meter), countersunk head socket head cap screw (flat cup), semicircular head socket head cap screw (round cup), cross recess pan head machine screw, cross Slot countersunk machine screws, cross recessed flat head machine screws, cross recessed pan head self-tapping screws, cross recessed countersunk head self-tapping screws, cross recessed large flat head self-tapping screws, full tooth screw (strip), hex nut , flange nuts, nylon nuts, cap nuts, wing nuts, flat washers, spring washers, serrated washers, split pins, etc. Stainless steel socket head cap screws

Mainly used in: environmental protection equipment, medical equipment, communication equipment, power facilities, electronic products, food machinery, petrochemical, ship assembly, pump and valve pipelines, building curtain walls, open air and so on.

Material selection principle
Stainless steel screw selection principle:

The choice of stainless steel materials is mainly considered from the following five aspects.

1. Requirements for mechanical properties, especially strength, of stainless steel screw materials;

2. Requirements for the corrosion resistance of materials under working conditions;

3. The requirements of the working temperature on the heat resistance (high temperature strength and oxidation resistance) of the material;

4. Requirements for material processing performance in terms of production process;

5, other aspects, such as weight, price, procurement factors must be considered.