摘要
根据西气东输二线X80宽厚板的技术条件和首钢4300mm轧机生产线的特点，开发了具有良好低温韧性的X80宽厚板。并对开发的22mm厚X80宽厚板的成分设计、工艺特点和控轧控冷工艺进行了详细介绍，并对开发的X80宽厚板及用其制造的钢管也进行了相关的机械性能检验．结果表明：首钢开发的22mm厚X80宽厚板以针状铁素体组织形态为主，其强度和韧性较高，完全满足西气东输二线X80宽厚板的标准要求。
According to the technical specifications of ＂ the 2nd West-East Pipehne Project ＂ and processing characteristics of 4300 mm production line of SGSteel, the X80 steel plate with good toughness was developed. The composition design, technology point and the control rolling and cooling process were introduced. As shown from properties of 22 mm X80 steel plate and pipe, an acicular ferrite microstructure was obtained, and the X80 steel has an excellent property.
出处
《首钢科技》
2009年第5期13-16,共4页
Shougang Science and Technology
关键词
X80钢级
宽厚板
针状铁素体
机械性能
组织形态
X80 grade, heavy plate, acicular ferrite, mechanical properties, microstructure
