CORTENA全称耐大气腐蚀热连轧钢 又名考登钢 耐候钢 可耐大气腐蚀。

C≤0.12% Si:0.25%~0.75% Mn:0.2%~0.5% P:0.07%~0.15% S≤0.04%
Cu:0.25%~0.55% Cr0.30%~1.25% Ni≤0.65%

屈服点MPa不小于343 

抗拉强度MPa不小于480 

伸长率不小于22%