摘要
通过对高磷耐候钢性能要求和工艺特点的分析,基于低成本思路进行以Cu、P为基的合金成分设计,并制定了相应的关键生产工艺控制措施,成功开发出综合性能优良的Q355级别高磷耐候钢板。试制钢板屈服强度达到420 MPa以上,抗拉强度达到520 MPa以上,-20℃A_(kV)达到170 J以上,耐大气腐蚀性指数I超过7.0,且钢板表面质量和板形控制较好。
Through systematic analysis on the property requirements and process characteristics of high-phosphorus atmospheric corrosion resisting steels, with the low-cost idea, the alloy composition was design based on Cu and P elements. And the control measures corresponding key production processes were formulated, the Q355 high-phosphorus atmospheric corrosion resisting steel with excellent comprehensive properties was successfully developed. For the trailed plates, the yield strength was above 420 MPa, the tensile strength reached was more than 520 MPa, the AkV at - 20 ℃ reached more than 170 J, the atmospheric corrosion resistance index ＂1＂ was more than 7.0. The surface quality and shape control of steel plates were also better.
出处
《山东冶金》
CAS
2017年第1期1-3,8,共4页
Shandong Metallurgy
关键词
高耐候钢
含磷钢
工业试制
力学性能
high-weatherability steel
phosphorus-bearing steel
industrial trial production
mechanical property
