You mean Chinese steel, which is terrible, barely passable junk?
Yes, great for mission critical stuff.
And that's what Chinese steel does. Fail.
They've only been able to make ball point pens, with a proper round steel ball, for a decade!
Anshan Iron and Steel: https://www.steelorbis.com/steel-news/latest-news/ansteel-co...
Panzhihua Iron and Steel: https://news.metal.com/newscontent/101439663/The-exclusive-s...
Baotou Iron and Steel: http://innermongolia.chinadaily.com.cn/baotou/2020-01/03/c_4...
Wuhan Iron and Steel: https://www.marketscreener.com/quote/stock/WUHAN-IRON-AND-ST...
Handan Iron and Steel: https://www.gneesteel.com/news/industry-news/hbis-successful...
Sounds like a dangerous railway, then.