高强度耐候钢SPA

该钢组织为铁素体+珠光体，您可以激活您的VIP账号继续阅读，检验和使用结果表明，有较高洁净度， 去激活 > 。

钢的屈服强度345～435 MPa 抗 拉 强 度480~570 MPa 延伸率23%～43% 并具有良好的焊接性能 Abstract The low alloying high strength weather-resisting steel SPA-H strip-C≤0. 12 Mn 0.20~0.50 Si0.25~0.75 P0.07~0. 15 S≤0.04 Cu0.25~0.60 Cr0.30~1.25 Ni≤0.65 has been trial-produced by flow sheet of& an 100 t electric arc fumnace-ladle furnace-concaster-rolling mill at Nanjing Steel. The results of examination and service showed that the steel structure was ferrite+pearlite and has higher cleanliness the yield strength of steel 345～435 MPa tensile strength 480～570 MPa elongation 23%~43% and the steel has excellent weld ability 关键词 Keywords references 试读结束， 南钢采用100t电弧炉-钢包炉-连铸-轧制工艺路线试制了成分(%)为：C≤0.12 Mn0.20~0.50 Si0.25~0.75 P0.07~0.15 S≤0.04 Cu0.25~0.60 Cr0.30~1.25 Ni≤0.65 低合金高强度耐候钢 SPA-H 钢带，。