Q345NS钢焊接接头耐硫酸腐蚀特性研究

石践, 胡学文, 何博, 杨峥, 郭锐, 汪飞

Sulfuric Acid Corrosion Resistance of Q345NS Steel Welded Joint

SHI Jian, HU Xuewen, HE Bo, YANG Zheng, GUO Rui, WANG Fei

表1 试验材料的化学成分

Table 1 Chemical compositions of test materials (mass fraction / %)

Test material C Si Mn P S Cr Ni Cu Sb Fe Q345NS ≤0.1 0.33 0.77 0.016 0.004 ≤1.0 ≤0.4 ≤0.6 ≤0.15 Bal. TH550-NQ-Ⅲ 0.09 0.18 1.44 0.019 0.006 0.37 0.28 0.25 --- Bal.