武钢桥梁用14MnNbq 50～60mm超厚钢板实物性能  

REAL PROPERTIES OF 14MnNbq STEEL PLATES WITH 50～60mm FOR BRIDGES PRODUCED BY WISCO

作　　者：邹德辉[1] 郭爱民[1] 董汉雄[1] 李书瑞[1] 

机构地区：[1]武汉钢铁集团公司技术中心,武汉430080

出　　处：《钢结构》2005年第2期74-77,17,共5页Steel Construction

摘　　要：介绍了武钢生产的14MnNbq钢50～60mm超厚钢板的实物性能,母材及焊材试验结果表明,50～60mm超厚钢板的板厚效应较小,断裂韧性及低温韧性优异,同时焊接性能也非常良好.还对近年来生产的50mm超厚钢板的性能做了数理统计分析,结果表明,实物性能非常稳定.14MnNbq钢50～60mm超厚钢板完全能满足我国特大型公铁两用桥梁设计制造的需要.It is introduced that the properties of 14MnNbq steel plates with 50～60mm produced by WISCO. The test results of the base metal and welding material show that the ultra thick plates have a desired thick section capability, excellent fracture ductile and cryogenic temperature toughness, as well as excellent weldability. It is analyzed that the properties of 50mm ultra thick plates produced recently, it also reveals the properties are extremely steady. Therefore, it can meet completely the demand of design and fabrication of the ultra large scale bridges in China.

关 键 词：超厚钢板 桥梁 武钢 14MNNBQ钢 数理统计分析 试验结果 板厚效应 低温韧性 断裂韧性 焊接性能 设计制造 特大型 焊材 

分 类 号：U444[建筑科学—桥梁与隧道工程]