Stainless steel standard parts have their own requirements for
production raw materials. Most stainless steel materials can be made
into wire or bar for fastener production, including austenitic stainless
steel, ferritic stainless steel, martensitic stainless steel, and
precipitation hardening stainless steel. So what are the principles when
selecting materials? The selection of stainless steel materials is
mainly considered from the following aspects:
1. Requirements for fastener materials in terms of mechanical properties, especially strength;
2. The requirements of working conditions on the corrosion resistance of materials;
3.
The requirements of the working temperature on the heat resistance
(high temperature strength, oxidation resistance) of the material;
4. Requirements for material processing performance in terms of production technology;
5. Other aspects, such as weight, price, and purchasing factors should be considered.
After
comprehensive and comprehensive consideration of these five aspects,
the applicable stainless steel materials are selected according to the
relevant national standards. The standard parts and fasteners produced
should also meet the technical requirements: bolts, screws and studs
(3098.3-2000), nuts (3098.15-2000), set screws (3098.16-2000).