S355NL normalized steel has different impact energy requirement for impact tests at different temperature environment. S355NL plate shall be done impacting test in longitudinal direction under -50℃ with the minimum energy 27J. When customers request done charpy_V notch test under -20℃, then the impacting energy shall be above 47J. For the transverse direction, the engery shall be above 16J under the temperature -50℃. The ASTM A283 grade C carbon steel sheet, steel Grade S355NL making process shall according to EN10025-1.
Nc cutting machine of steel plate, it mainly includes the following equipment: NC flame cutting machine, NC plasma cutting machine. CNC flame cutting machine: currently used for cutting 5-300mm ASTM A283 grade C carbon steel sheet carbon steel plate materials, cutting thickness, high cutting efficiency, cutting without groove, simple to use, cutting raw materials are mainly oxygen, low cost, for most users to adopt the way.
The company adopts the ASTM A283 grade C carbon steel sheet international advanced management system, and has passed the certification of ISO9001 quality management system, ISO14001 environmental management system and GB / T28001-2001 occupational health and safety ASTM A283 grade C carbon steel sheet management system, and has realized the comprehensive integration of the three systems.
When cutting and punching a part, the dimensional tolerance shall not be greater than 10% of the ASTM A283 grade C carbon steel sheet thickness of the part. If burr occurs, the limit height shall not be greater than 0.3mm. If the part is drawn from steel sheet, some other changes may be made to ensure the basic size, but if the surface affects the assembly, it should be repaired flat. After the steel plate is installed, it should be cleaned. Before installing the steel bar, it should not pile up heavy objects on it.
