Common grades of European standard Angle steel include S235JR, S275JR, S355JR, S355J0, S355J2 and so on. ‌ These grades represent the chemical composition and mechanical properties of the Angle steel, specifically, their number portion represents the yield strength (in MPa), while the combination of letters and numbers represents the specific impact toughness and delivery status. For example, "355" in S355JR means that the yield strength is not less than 355 mpa, and "JR" means that the longitudinal Charpy V-notch impact work at +20°C is not less than 27J. The difference in these grades reflects their suitability for different application scenarios and load requirements.

‌S235JR‌ : has a low yield strength, suitable for general structural uses, such as buildings and Bridges.

‌S275JR‌ : Slightly higher yield strength than S235JR, suitable for structural applications requiring higher strength, such as load-bearing structures and machine building.

‌S355JR‌ : has a high yield strength, suitable for bearing large loads and high stress structures, such as tower cranes and airstrips.

‌S355J0 and S355J2‌ : These grades are also high strength Angle steels, with excellent welding and machining properties, widely used in construction, bridge, vehicle manufacturing and mechanical equipment and other fields.