Who sale the ship construction use A131 AH32 structural steel

LNG ships are called "super-refrigerated vehicles on the sea", and their service environment is at a very low temperature of minus 163 degrees Celsius. This requires that the steel for LNG storage tanks must have low temperature resistance, often using Invar steel or 9Ni steel. At present, a complete series of nickel steels such as 0.5Ni steel, 2.5Ni steel, 3.5Ni steel, 5Ni steel, and 9Ni steel have been formed in the field of low-temperature steel. China has also developed relatively mature 3.5Ni steel and 5Ni steel. And 9Ni steel, and successfully used in the construction of low-temperature transport ships.

Medium plate ship construction use A131 AH32 structural steel products size: 5.5*2250*11550, 5*2200*10100, 5*1500*4500, 6*1750*13000, 5*2700*12050, 5*2700*12050, 6*1800*5500, 6*1550*6000, 9*2000*6000, 5.5*2600*10100, 5*2500*11000, 7*1800*10450, 6*3080*6000, 9*2000*9000, 5.5*2600*11850, 6*3320*5000, 9*1760*7800, 6*3370*4100, 9*2400*9800, 7*1970*7050, 6*3240*5400, 9*1800*10000, 6*3380*4800, 7*2120*6400 and 9*2400*8500.

According to the latest statistics of alacero, the consumption of finished steel ship construction use A131 AH32 structural steel products in Latin America in 2019 was 64.2 million tons, down 5% from 67.6 million tons in 2018. The decline in steel consumption in the region reflects the economic contraction of Latin American countries, especially the three major economies: Mexico, Argentina and Brazil.

The characteristic of niobium in ship construction use A131 AH32 structural steel etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.