Introduction to subway seat materials

Introduction to subway seat materials:

The subway seats are made of stainless steel.

Generally speaking, stainless steel is not easy to rust. In fact, some stainless steel materials have both rust resistance and acid resistance (corrosion resistance).

The stainless and corrosion resistance of stainless steel is due to the formation of chromium rich oxide film (passive film) on its surface. This rust resistance and corrosion resistance are relative. The test shows that the corrosion resistance of steel in weak medium such as atmosphere, water and oxidizing medium such as nitric acid increases with the increase of chromium content in steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel changes from easy to not easy to rust, from non corrosion resistance to corrosion resistance.

Introduction to subway seat materials:

The subway seats are made of stainless steel.

Generally speaking, stainless steel is not easy to rust. In fact, some stainless steel materials have both rust resistance and acid resistance (corrosion resistance).

The stainless and corrosion resistance of stainless steel is due to the formation of chromium rich oxide film (passive film) on its surface. This rust resistance and corrosion resistance are relative. The test shows that the corrosion resistance of steel in weak medium such as atmosphere, water and oxidizing medium such as nitric acid increases with the increase of chromium content in steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel changes from easy to not easy to rust, from non corrosion resistance to corrosion resistance.