1. Q550D steel plate introduction:
Q550D steel plate is a low-alloy high-strength structural steel. Q500D steel plate is not only high-strength steel, it is also low-carbon steel.
Q550D is a kind of D grade steel with a yield strength of 550MPa, the grade of steel is composed of three parts: the Chinese pinyin letter representing the yield strength, the yield strength value, and the quality grade symbol, Q550D wherein: Q - the first letter of the word "yield" of the yield strength of the steel; 550—Yield strength value, unit: MPa; D—The quality grade is D (grades are divided into C, D, E).
Q550D steel plate executive standard: GB T 16270-2009
Q550D Steel Plate Delivery Status: Usually delivered in quenched and tempered condition.
Q550D steel plate smelting method: Q550D steel is smelted by converter or electric furnace, and refined outside the furnace if necessary.
Q550D steel plate flaw detection level: national standard one exploration, national standard two exploration, national standard three exploration;
Q550D steel plate density: 785 cubic meters;
Q550D steel plate manufacturers: Wugang, Shangang, Hanye, Laigang, Xianggang, Xincheng;
2. Chemical composition of Q550D steel plate:
3. Mechanical properties of Q550D steel plate:
Fourth, Q550D steel plate characteristics and advantages:
High strengthQ550D steel plate has high yield strength and tensile strength, and can withstand large pressure and bending force, so it is widely used in occasions that need to withstand heavy loads and impacts.
Good toughnessQ550D steel plate can maintain good toughness in low temperature environment and is not easy to embrittle, which makes it have a good application effect in some cold areas or projects that need to withstand low temperatures.
Good welding performance:Q550D steel plate has good welding performance, easy to process and weld into various structural parts, which greatly improves its practicability.
Corrosion resistanceQ550D steel plate has been specially treated with anti-corrosion, which has good corrosion resistance and can resist the erosion of various corrosive media, thereby prolonging its service life.
5. Q550D steel plate application:
Q550D steel plate is suitable for power towers, all kinds of lifting cranes, heavy trucks, oil derricks, high-temperature fans, large electric shovels, dump trucks and drilling rigs, coal mine hydraulic supports, steel structures, etc.
6. Common specifications and sizes of Q550D steel plate:
Q550D steel plate size introduction (thickness * width * length in mm).
Q550D steel plate; 10*2000-2400*8000-13000
Q550D steel plate; 12*2000-2500*9000-10000
Q550D steel plate; 15*2000-2400*8000-9000
Q550D steel plate; 16*2000-2500*8500-10000
Q550D steel plate; 20*2000-2500*9600-10000
Q550D steel plate; 25*2000-2300*8500-11000
Q550D steel plate; 30*2000-2400*8500-10000
Q550D steel plate; 40*2000-2500*8000-14000
Q550D steel plate; 45*2000-2500*8000-10000
Q550D steel plate; 50*2000-2400*9000-10000
Q550D steel plate; 55*2000-3000*8500-10000
Q550D steel plate; 60*2000-2500*8500-12000
Q550D steel plate; 65*2000-2700*8500-13000
Q550D steel plate; 70*2000-2600*8500-11500
The above dimensions can be negotiated according to the drawings of cutting and deep processing technical service introduction