规格 Typical Tensile Properties Condition As Welded Elongation 30 % Hardness (BHN) 160-180 BHN Hardness (HRC) 42-46 HRC Tensile Strength 690 MPa Yield Strength 440 MPa 分类 E Z Fe9 EN 14700 夏比V型缺口冲击性能 Condition As Welded Impact Value 100 J Testing Temperature +20 °C Condition As Welded Impact Value 80 J Testing Temperature -20 °C 焊缝金属分析 元素 C 额定百分比 0.8 % 元素 Si 额定百分比 <0.3 %