Vanadium is a weak deoxidizer. Adding vanadium into BV grade A ferry steel plate steel can reduce the adverse effects of carbon and nitrogen, effectively improve the strength, but sometimes also increase the tendency of welding hardening, vanadium is also a commonly used trace alloy element.
In March, the daily output of key iron and steel enterprises decreased on a month on month basis. In terms of enterprise inventory, in late March, the key statistics showed that the BV grade A ferry steel plate steel inventory of iron and steel enterprises was 18.067 million tons, a decrease of 3.342 million tons or 15.6% compared with the highest inventory in early March, and an increase of 8.534 million tons or 89.5% compared with the beginning of the year.
The weight of seamless steel pipe is only 1 / 5 of that of square steel. Seamless steel pipe corrosion resistance acid, alkali, salt and atmospheric environment corrosion, high temperature resistance, good impact and fatigue resistance, do not need regular maintenance. The effective service life of product BV grade A ferry steel plate more than 15 years.
For plates the thickness limitations are: S355G2+N, S355G5+M, - up to and including 20 mm S355G3+N, S355G6+M - up to and including 40 mm S355G7+N, S355G8+N, S355G9+N, S355G10+N - up to and including 150 mm S355G7+M, S355G8+M up to and including 100 mm S420G1+Q, S420G1+M, S420G2+Q, S420G2+M - up to and including 100 mm S460G1+Q, S460G1+M, S460G2+Q, S460G2+M - up to and including 100 mm.
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