grade 09cupcrni-a weldability

Vanadium mainly exists in the form of carbide in grade 09cupcrni-a and so on steel. Its main function is to refine the structure and grain size of steel and reduce the strength and toughness of steel. When the solid solution is dissolved at high temperature, the hardenability is increased; conversely, if it is in the form of carbide, the hardenability is reduced. Vanadium increases the tempering stability of quenched steel and produces secondary hardening effect. The vanadium content in steel, except high speed tool steel, is generally less than 0.5%.

Titanium microalloying is an element of grade 09cupcrni-a strengthening complex with carbon and nitrogen. The addition of micro amount of titanium in the steel can fix almost all nitrogen and part carbon in the steel, so as to eliminate the strain aging phenomenon and improve the aging impact performance of the steel. At the same time, it can refine the grains and change the morphology of the compounds. According to the atomic weight ratio of Ti and N in grade 09cupcrni-a tin formula (Ti = 3.4n), the content of Ti in steel should be controlled between 0.015 and 0.025%. Generally, the amount of ferrotitanium added to each ton of steel is 1kg.

In March, the daily output of key iron and steel enterprises fell on a month on month basis, while the overall inventory of grade 09cupcrni-a and so on steel materials was lower but still at a high level. In terms of production, in March, according to the key statistics, the cumulative average daily output of pig iron, crude steel and steel for iron and steel enterprises was 1.824 million tons, 1.695 million tons and 1.766 million tons respectively, down 2.1%, 3.1% and 1.7% on a month on month basis.

grade 09cupcrni-a, Weathering steel plate is a common material in the industrial field, such as some bridge construction, highway and railway construction and automobile manufacturing, you can see the application of weathering steel plate. At the same time, the performance characteristics of weathering steel plates are relatively good, and the variability is also a major feature worthy of praise.