How to choose stainless steel compounds in different place.
Like other steels, they are iron and carbon alloys to which chromium and other elements are added to improve strength. Stainless steel is a simple term for an indestructible material that does not rust and withstands all forms of corrosion. This protective layer significantly slows down the oxidation process (formation of rust), which is not the case with a non-alloyed material that can rust or corrode because its oxide layer is porous.
A stainless steel grade corresponds to the metal's chemical composition, not its surface appearance. Grades are selected depending on the environment and atmospheric conditions. Austenitic steels have high hot or cold corrosion resistance in aggressive environments. This resistance is due to chromium (over 15%) which protects the surface of the alloy by passivation.
Resistance to atmospheric corrosion has then multiplied a hundredfold compared to standard steels. A2 (AISI 304) and A4 (AISI 316) are the most widely used grades. The high-strength stainless steel grades A2-70 and A4-80 have become a reference standard. There is no visible difference between A2 and A4 stainless steel. However, they have slightly different characteristics.
SS 316 Fasteners are mainly used in the chemical and food industry, while A4 stainless steel, also known as marine grade stainless steel, is widely used in shipbuilding due to its excellent salt spray resistance. A2 stainless steel comprises 18% chromium and 8% nickel, while A4 stainless steel comprises the same amount of chromium and nickel plus 3% molybdenum. Plus, A4 stainless steel makes fasteners easy to make, clean, polish, and weld.
Qualities and uses of 304 and 304L grade stainless steel:
Alloys without added molybdenum have good ambient and inter-granular corrosion resistance. They have good weldability and are suitable for use in the food industry and less aggressive environments such as boiler making and piping.
These alloys have low carbon content and reliable addition of molybdenum, which gives them very good pitting corrosion resistance and makes them suitable for hot working. SS 316L Round Bar is ideal for very aggressive environments, particularly chlorinated and marine environments.
How to best use them?
As these materials benefit from great resistance and great solidity, they are often used as constituents of railings and handrails. Indeed, the bars generally used as barriers or guardrails to secure our outdoor spaces (balconies, terraces, etc.) are particularly fond of this solid material which meets all safety standards. They are used as bars according to their diameter.
Their metallic appearance gives them a modern design that easily integrates it into the interior decoration of a house to accompany stairs, for example. In addition, creating stainless steel tubes is also very popular with people wishing to have a discreet and solid railing in their outdoor spaces. Their resistance to torsion and rust ensure the solidity and durability of your layouts, especially if it is an exterior railing.
On the other hand, the handrail is another specific use of Super duplex 2507 round bar. Indeed, this one corresponds to the railing of your staircase. In addition, its maintenance is easy, and it is resistant to rust. Certainly, a sponge and clean water are sufficient to maintain your stainless steel tubes properly and durably.