纵向变厚度EH40钢板的组织和性能

李广龙, 李靖年, 李文斌, 严玲, 张鹏, 王晓航

Microstructure and Properties of Longitudinally Profiled EH40 Steel Plate

LI Guanglong, LI Jingnian, LI Wenbin, YAN Ling, ZHANG Peng, WANG Xiaohang

表1 LP钢板的力学性能

Table 1 Mechanical properties of LP steel plate

Location Tensile properties Kv2/J ReH/MPa Rm/MPa A/% -20℃ -40℃ -60℃ Thin Near surface 534 599 22.5 297 326 301 291 289 315 276 229 252 Middle Near surface 515 590 25.5 283 300 295 280 282 290 210 225 243 Thick Near surface 504 586 25.0 280 297 290 259 286 295 245 81 187 Center 489 569 27.5 279 273 283 275 262 270 176 34 151 Standard ≥390 510~660 ≥20.0 ≥41