Q550D steel plate chemical composition and hydrogen steel plate experimental analysis

Q550D steel plate chemical composition and hydrogen steel plate experimental analysis

1. Introduction to
Q550D steel plate 1. Q550D is a grade steel with a yield strength of 550mpa. It is a high strength low alloy steel, and Q550D steel plate is a high strength steel plate with low weld crack susceptibility.
2. The grade of Q550D steel plate indicates the first letter of the word "yield" in Chinese pinyin of the yield strength of "Q" steel; "550": the yield strength of the steel plate is 500, in MPa; "D": indicates that the quality grade of the steel plate is D (grades are divided into C, D, E).
3. Q550D steel plate implementation standard: implement GB/T 16270-2009 GB/T1591-2008 standard.
4. Q550D steel plate delivery status: the steel plate is delivered in a quenched and tempered state, and the delivery status can also be specified according to technical requirements.
5. Q550D steel plate thickness direction performance requirements: Z15, Z25, Z35.
6. Q550D steel plate flaw detection requirements: one probe, two probe, three probe.
7, Q550D steel plate density: 7.85 / cubic meter.
8. Q550D steel plate weight adjustment formula: thickness * width * length * density.
9. Conventional size of Q550D steel plate: 8-260mm*1600-2500mm*8000-12000mm
 

 

Chemical composition

Tabulation: Depu Steel Date: 2024-01-18

C	Si	Mn	P	S	Alt
≤0.18	≤0.55	1.0-1.60	≤0.030	≤0.030	≥0.015

Note:
(1) The data comes from the network and is for reference
only
Q550D steel plate application range
Q550D steel plate is mainly used for the production of hydropower station pressure steel pipes, construction machinery, railway vehicles, bridges, high-rise and long-span buildings with high weldability requirements, Q550D is used in manufacturing plants, general construction and all kinds of construction machinery, such as mining and various engineering construction with drilling rigs, electric shovels, electric wheel dump trucks, mining cars, excavators, loaders, bulldozers, all kinds of cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts.