S690QL low alloy steel plate product ladle analysis

S690QL low alloy steel plate, Q690CF steel plate, also known as CF (CrackFree) steel in the world, is a kind of steel with low carbon equivalent, low PCM value and excellent welding function. It is generally believed that there is no crack in welding without preheating or under low preheating conditions. In order to further improve Q690CF steel strength, TMCP and microalloying skills are also required.

Medium and heavy plate is widely used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and other fields. The surface quality of medium and heavy plate mainly refers to its surface smoothness, surface defects, etc., which is one of the main quality indexes of medium and heavy plate. The surface quality of S690QL low alloy steel plate, medium and heavy plate not only affects the appearance of the products, but also reduces the corrosion resistance, wear resistance, fatigue limit and other properties of the steel plate.

BBN STEEL supply various size of plate product S690QL low alloy steel plate Size stock: 16*1555*11400, 12.7*3316*10500, 12.7*2438.4*12192, 23*2330*11300, 12.7*2518*11380, 6.5*2450*12500, 18*1860*12000, 12.7*2515*12000, 9*2440*12500, 15.1*1550*10400, 12*2680*12000, 12*2520*12000, 18*2020*12000, 11*2365*12000, 14*3470*12000, 12.7*2518*11380, 18*1700*12000, 9.2*2530*12000, 12*2680*12000, 68*2350*7500.

Manganese is used to deoxidize and remove sulfur in steel when making steel. It is an beneficial element in S690QL low alloy steel plate steel. Manganese has a strong ability to deoxidize and remove sulfur, it can eliminate or reduce the hot brittleness caused by oxygen and sulfur, and improve the strength and hardness of S690QL low alloy steel plate steel.