Hot dip galvanizing-free steel for photovoltaic bracket

• Main Authors: HE XIAOBO, GUAN LIUHUI, SUN TUO, LI YONG, WEI XIAN, ZHANG ZHENSHEN, WANG HAIYAN, WANG ZHONGQI, GAO RUI, XIA ZHISHENG, WANG XINZHI, ZHANG LINGZHI, SUN YUQIANG, WANG XIANGSONG, KONG DENAN, LI ZHIGUANG, DENG HANGZHOU, CHEN DONGZHI
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2018
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention belongs to the technical field of new materials, and particularly relates to hot dip galvanizing-free steel for photovoltaic brackets. The steel for the photovoltaic brackets is Al-killed fine-grained steel, and comprises 0.20-0.50 wt% of Cu, 0.40-1.00 wt% of Cr, 0.05-0.50 wt% of Ni, 0.010-0.110 wt% of P, 0.050-0.120 wt% of C, 0.15-0.50 wt% of Si, 0.30-1.20 wt% of Mn, no more than 0.020 wt% of S, no more than 0.040 wt% of Ti, no more than 0.050 wt% of Nb and the balance Fe. According to the hot dip galvanizing-free steel for the photovoltaic brackets, the problems of severe pollution and high production cost of existing photovoltaic brackets made of hot-dip galvanized steel sheets are solved. 本发明属于新材料技术领域，特别涉及种免热镀锌的光伏支架用钢。所述光伏支架用钢为铝镇静细晶粒钢，其化学成分组成如下：Cu 0.20-0.50wt%、Cr 0.40-1.00wt%、Ni 0.05-0.50wt%、P 0.010-0.110wt%、C 0.050-0.120wt%、Si 0.15-0.50wt%、Mn 0.30-1.20wt%、S≤0.020wt%、Ti≤0.040wt%、Nb≤0.050wt%，其余为Fe。本发明可以解决现有光伏支架采用热镀锌钢板而产生的污染大、生产成本高的问题。