RE: As promised earlier ...20 May 2019 22:35
Part 2
What we can see from the data is what we have is an environment where consumption is ahead of production. Vanadium prices at $15 have very strong support level but what we saw January through March saw the price rise from $15 to about $17 on the back of a tight market situation, before we saw the price suddenly start to collapse again. In late March it became apparent that the Chinese steel mills were not ignoring the new standard as evidenced by rising imports of niobium which is the substitute for vanadium in some cases in this application. Significant increase in niobium imports led to a second industry rumour. Obviously the standard was not being avoided or ignored or there would not have been an increase in niobium imports, but the high import levels of niobium in January led some people to believe that niobium would completely replace vanadium in high strength rebar.
It's clearly my view that this speculation is incorrect, metallurgically that's an impossible outcome and I think that this misconception pushed the price down to the point we have now. If we very briefly look at metallurgy, both niobium and vanadium impart higher strength on steel but they do it through very different metallurgical mechanisms. Vanadium is very predictable, it's very easy and it is the best solution for this application. In some cases, if we have the right metallurgical understanding, if we have a reheat furnace with the ability to get the billets up to 1200c, if we have a high powered rolling mill and if we are producing rebar smaller than 25 mm diameter it is theoretically possible to use niobium rather than vanadium. The use of niobium requires a controlled rolling practice that leads to higher energy useage, lower throughput through the mill and will result in higher quality issues, but it can be done in some cases.
So what we really need to understand is what's going on in terms of niobium and vanadium consumption in China. If we look at the latest data available it will suggest that in grade 3 rebar 38% of the rebar is 25mm in diameter or larger and therefore can not be produced with niobium due to the metallurgical limitations. It's also the case that grade 4 and grade 5 high strength rebar in China must use vanadium. There's no question about it. So the new standard has in effect done two things. It's eliminated loopholes that allowed people to send quench and tempered steel into this market advertised as grade 3. Quench and tempered steel does not meet the standard for elongation and it will not perform well in seismic activity. When this use of illegal quench and tempered steel was discovered a research project by the Chinese Iron and Steel research institute was initiated. It was discovered that there were some steel mills sending quench and tempered steel into the market and calling it grade 3 rebar. The revision of the standard is designed to solve that problem.