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Overview

Carbon Steel

Carbon steels are steel grades with a carbon content of up to 2.1% by weight. Carbon steel does not contain any minimum amount of other alloying elements, such as chromium, cobalt, molybdenum or tungsten. Nonetheless, it often contains manganese. However, the maximum amount of manganese in the metal should not exceed 1.65% by weight. Further, the amount of silicon and copper should be less than 0.6% by weight.

With the rise of the carbon amount in the steel, the hardness of the workpiece increases. However, the weldability and ductility reduces with higher carbon content.

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Passivation of stainless steel

Passivation is a finishing process for stainless steel and other metals. By removing free iron and thus increasing the chromium content in the metal, passivation improves the natural corrosion resistance of stainless steel.

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Diffusion Bonding

Diffusion bonding is a welding technique which is primarily used in metal working. Diffusion bonding operates on the principle of solid-state diffusion and makes it possible to join two similar or dissimilar metals. It is widely applied in aerospace and the nuclear industry.

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Salt Spray Test

The salt spray test, also known as the salt fog test, is a common corrosion testing method. The accelerated standardized testing method is one of the most proven and widespread procedures for testing and comparing corrosion resistance in a constant environment.

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How to relieve stress by heating

Every step of fabrication adds internal stress to the metal. Heating is a common procedure to relieve stress in the workpiece. There are several heat treatments to achieve the desired result which are differentiated by the induced temperature.

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