S355JR is a grade of low-carbon steel commonly used in structural applications. It is part of the 'S' family of steels, which includes S235, S275, and S355 grades.
The "JR" designation means that the material has been subjected to a Charpy V-notch impact test at 208℃ and has a minimum impact strength of 27 Joules.
- High strength-to-weight ratio
- Moderate corrosion resistance
- Good durability
- One of the strongest steel grades available
Overall, S355JR steel is a versatile and widely used material with good strength and durability for various structural applications.
Chemical Composition (weight, %)
Protective coatings or surface treatments can be applied to improve the corrosion resistance of S355JR steel. These may include galvanising, painting, or powder coating the surface to provide a barrier against corrosion.