Dhulka carruurta kaalmada ee ku jirin badbaadaha Eeropa (EN) waxaa u baahan yahay badbaadaha Eeropa (EN) ahaan badbaadaha CEN, kuwaas oo ka mid ah uniformity iyo khexeynta ah ee dhammaan markaashka eeropa iyo sharciga ah ee EU ee ku jirin shaqsiyadda. Sidoo kale, waa in ay ku jirtaan sharciinta badbaadaha carruurta ee ku jirin chemical composition, xawaareedka mekanikali, iyo sharciinta application requirements, kuwaas oo ku jirin grades ee lahayd S235, S275, iyo S355, kuwaas oo lacagta ayaa ku jiro yield strength ee dhammaan MPa. EN 10025 waa badbaadaha kaalmo ee ku jirin carruurta, kuwaas oo ku jirin sharciinta melting processes, chemical analysis, tensile tests, impact tests, iyo surface quality. Sharciinta chemical composition waa lagu sameeyo, kuwaas oo ku jirin limits carruurta, manganese, phosphorus, sulfur, iyo carruurta kale si ay weldability iyo xawaareedka mekanikali ku saabsanayo. Markaasaa, carruurta S355 waa carruur ≤0.22% carruurta, manganese ≤1.60%, iyo phosphorus/sulfur ≤0.035%, kuwaas oo ku jirin balance ee strength iyo formability. Xawaareedka mekanikali waa lagu sameeyo tensile strength, yield strength, iyo elongation, kuwaas oo ku jirin impact resistance ee ku jirin temperatures (misheysa 20°C for improved toughness). Dhulka carruurta kaalmada ee EN waxaa u haystayn qoraalka construction (bridges, buildings, steel frames), mechanical engineering, iyo infrastructure projects. Carruurta standardized properties waa lagu sameeyo material selection iyo ku jirin compliance ee building codes iyo regulations ee Eeropa. Suppliers waxaa u haystayn CE marking iyo test certificates si ay ku baro conformity, kuwaas oo ku jirin suitable for projects ee ku jirin regulatory compliance iyo traceability.