One. Stainless steel doors and windows are made of 201 or 304 grade steel.
Stainless steel door and window materials include 201 grade and 304 grade.
304 is imported stainless steel sheet, and 201 is domestic stainless steel sheet. The quality of 304 is better and the price is relatively higher than 201. 201 stainless steel has a high manganese content and a shiny surface, which makes it prone to rusting. 304 has a high chromium content and a matte finish, which prevents rusting.
Two. Which type of steel is better for stainless steel doors and windows?
For stainless steel anti-theft doors and windows, it is recommended to use 304 stainless steel with a chromium content greater than 8 and that is resistant to rust. The plate thickness should be approximately 0.6mm-1.0mm, and the price will be slightly higher than that of ordinary stainless steel doors and windows.
Common stainless steel doors and windows can be made from 302 stainless steel, which has a chromium content between 4 and 8%. However, in harsh climates, it may rust. This type of material is significantly cheaper than 304 stainless steel.
Currently, the range of materials available for stainless steel doors and windows has expanded, and can be further categorized into aluminum-steel composite doors and windows, manganese steel doors and windows, and zinc alloy doors and windows. These doors and windows can be manufactured using 201 and 304 profiles, as well as 302 profiles.
Three. important considerations when purchasing stainless steel doors and windows.
1、When purchasing stainless steel doors and windows, we must ensure that the supplier provides relevant certifications, including business licenses and safety certifications, to ensure that we are purchasing from a reputable and reliable vendor.
2. When selecting stainless steel doors and windows, it is important to ensure that the products meet relevant standards and have corresponding certificates. only stainless steel doors and windows that meet all the specified standards are considered safe and reliable.
3. When purchasing stainless steel doors and windows, carefully inspect the surface for issues such as weld defects, un-welded areas, or leaks, as well as whether the color is uniform and the electroplated surface is smooth.
4. Stainless steel doors and windows primarily function as security measures. Therefore, when purchasing, it is essential to thoroughly inspect and repeatedly test their locking mechanisms. If the locking mechanisms included with the stainless steel doors and windows are not sufficiently secure, it is best to avoid purchasing them, as this will significantly reduce the security of the living space.