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Myths about Stainless Steel Bolts

Stainless steel bolts and fasteners are the most common tools used in wide range of applications. These are manufactured from common steel to titanium, plastic and other exotic materials. However these are used in wide range of applications including domestic, medical, industries, aerospace, marine applications and so on, many of us have some misconception about the stainless steel bolts and other fasteners. This article is dedicated to guide you and to clear up some common misunderstanding in short and formatted way.

Myth: Stainless steel is stainless.

Fact: Not all true. Stainless steels are 'Stain Less' not 'Stainless'. Basically steel is an alloy of iron and making steel stainless requires other alloying agents like chromium, manganese, nickel, phosphorous and silicon etc. Many grades of stainless steel are produced depending on the amount of these and other elements. Remember the level of rust resistance provided by the particular steel depends largely on the materials used to create it. The more chromium used to develop it, the more corrosion protection it is.

Myth: All Stainless steel doesn't corrode

Fact: Sometimes doesn't corrode. We already said stainless steel is an alloy of low carbon steel and chromium for enhanced its corrosion characteristics. So it's better to call it "corrosion resistant" steel. Its corrosion resistant property very much depends on its constituents and that's why some are more resistant to corrosion than others.

Myth: Stainless steel bolts and other fasteners are stronger than ordinary bolts or fasteners.

Fact: Not clearly true especially for majority of stainless steel bolts. In general, stainless steel materials have very little amount of carbon and that is the reason most of the stainless steel grades cannot be hardened by heat treatment. For any application that would call for a hardened, do not use common grades of stainless fasteners such as Grade 5 or Grade 8 or other stronger Grade. If we talk about the tensile strength of stainless steel, then remember that tensile strength is not the only measure of bolt quality and strength as well. Commonly stainless steel grades are significant tensile strength but reasonably less yields strength than regular grades.

Myth: Rolled threaded bolts are somehow special.

Fact: There is no doubt in the fact that rolled thread bolts are better in terms of strength and accuracy than cutting threads. But it is also true that nobody produces common sized of bolts. In production environment it is much cheaper to roll the threads than cutting them and also produce better results as well.

Myth: Stainless steel is not magnetic.

Fact: Generally stainless steel tends to less magnetic than ordinary steel. Normally these bolts can become slightly magnetic by cold working process. Even the raw materials used in production unit are non-magnetic, but the process of forming the heads and threads may sometimes cause the bolts coming out as magnetic.

Despite of above myths it's a fact that stainless steels are very much environment friendly as 90% of new stainless steel is used to produce from recycled scraps and almost all stainless steel is fully recyclable at the end of its life.


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