DIN 603 Bolt Material Selection

What are the main considerations for the selection of DIN 603 bolt materials?
Requirements for the mechanical properties of the bolt material, in particular the strength;
Requirements for the corrosion resistance of materials under working conditions;
The operating temperature requirements for the heat resistance (high temperature strength, oxidation resistance) of the material;
Requirements for material processing performance in terms of production process;
Other aspects, such as weight, price, and purchasing factors, should be considered.
After comprehensive consideration of these five aspects, determine the grade, variety, specifications and material standards of the selected bolts.
There are many kinds of bolts for the manufacture of materials. Among them, the bolts made of stainless steel are more textured in appearance, have better performance in strength, and have the advantages of corrosion resistance, easy manufacture, and good welding. Stainless steel bolts can be plated or heat treated for better performance and can be recycled.
The use of stainless steel as the material of the bolt can be said to have great advantages in all aspects of manufacturing, use or handling. Therefore, although the bolt is made of stainless steel, the cost itself is relatively high, and the cycle life is relatively short, but in the bolt solution However, it still belongs to a more economical one.
Use of nickel in bolts
Bolts used to rely on the use of nickel in the process of using stainless steel, but the price of bolts has also been greatly affected by the global price of nickel. In order to reduce the cost pressure and improve the competitiveness of the bolts, bolt manufacturers have found alternative materials and produced low-nickel DIN 603 bolts.
Stainless steel magnetic problem with bolts
If the bolt is made of stainless steel as the main material, you should also understand the magnetic problem of the stainless steel itself. Stainless steel is generally considered to be non-magnetic, but in fact, austenitic series materials may be magnetic after a certain processing process, but if it is considered that magnetic is the standard for judging the quality of DIN 603 bolts, it is also inaccurate.

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