
The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of ASTM A515 pressure vessel steel sheet nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of ASTM A515 pressure vessel steel sheet steel, can be used as an alloying element of low alloy steel.
Flat ASTM A515 pressure vessel steel sheet steel plate, with a small thickness of the plate. Low carbon equivalent, to adapt to automatic submerged arc welding, plasma welding and other ASTM A515 pressure vessel steel sheet welding process requirements.
At the same time of doing well in ASTM A515 pressure vessel steel sheet production and operation, Yunnan company focused on completing the four phases of technical transformation construction projects, realizing industrial upgrading, improving equipment level, and laying a good foundation for the future development of the company. In the ASTM A515 pressure vessel steel sheet technological transformation project, pollution control facilities have been built synchronously, and a large number of comprehensive utilization projects, such as comprehensive sewage treatment and recycling project, blast furnace gas waste heat and residual pressure power generation, have been invested and constructed.
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