Preparation and performance of stainless steel clad carbon steel as grounding grid
- DOI
- 10.2991/imst-16.2016.52How to use a DOI?
- Keywords
- ground mat; grounding resistance; stainless steel clad steel.
- Abstract
To address the serious corrosion of carbon steel and large grounding resistance of stainless steel in substation grounding grid, in this work, 304 stainless steel (X5CrNi18-9, ISO 15510: 2014) pipe was clad over Q235 carbon steel rod (S235B, ISO 630-2: 2011) to produce stainless steel clad steel as grounding grid material through cold drawing and hot rolling method respectively. The results showed that stainless steel clad steel assembled by cold drawing had a stainless steel skin with uniform thickness, and the stainless steel skin was clad over the carbon steel rod in a physical combination way with contact spaces, and the bonding strength is merely 0.3kg/cm2. Stainless steel clad steel assembled by hot rolling had a stainless steel skin with nonuniform thickness, the skin layer made of 6mm thick stainless steel has the minimum thickness larger than 1.24mm, and the bonding between stainless steel skin and carbon steel rod was found to be metallurgical combination. As regards grounding resistance, it was 1.36 times and 0.76 times that of Q235 carbon steel for assembled rod by cold drawing and hot rolling respectively. It can be concluded that the hot rolling type stainless steel clad steel is a desirable material meeting the discharge requirement of substation grounding grid well.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Bing Zhang AU - Lajun Feng AU - Aijun Yan AU - Xiaohuan Zhang PY - 2016/11 DA - 2016/11 TI - Preparation and performance of stainless steel clad carbon steel as grounding grid BT - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016) PB - Atlantis Press SP - 353 EP - 358 SN - 1951-6851 UR - https://doi.org/10.2991/imst-16.2016.52 DO - 10.2991/imst-16.2016.52 ID - Zhang2016/11 ER -