Chemical composition and mechanical properties of quenched and tempered high-strength steel WQ890D

Chemical composition and mechanical properties of quenched and tempered high-strength steel WQ890D

1. WQ890D grade analysis: WQ890D is a high-strength structural steel, the front W represents Wugang, where "Q" means yield, "890" is the yield value, "D" represents the grade, should be other grades: WQ890D, S890Q;
2. Heat treatment delivery status: quenched and tempered; Executive standard: WYJ.
The delivery state is quenched and tempered (quenched and tempered), because the delivery state is quenched and tempered, also called quenched and tempered high-strength steel. 3. Size, shape, weight and allowable deviation: The
size, shape, weight and allowable deviation of the steel plate shall comply with the provisions of GB/T709.
4. Inspection rules for steel plates:
Steel plates should be rolled one by one to test the mechanical and technological properties.
How to detect flaws: Ultrasonic flaw detection Wugang WQ890D steel plate can be ultrasonic flaw detection one by one, and the flaw
detection standards and qualification levels are specified in the contract. 5. Wugang WQ890D steel plate quality certification:
5.1 The surface quality of the steel plate is implemented according to GB3274-88.
5.2. The packaging, marking and quality certificate of the steel plate shall be implemented in accordance with the provisions of GB247.
5.3. Other unfinished matters shall comply with the provisions of GB3274-88 and GB/T16270-1996 standards.
 
 

Chemical composition

Tabulation: Depu Steel Date: 2024-01-18

C	Si	Mn	P	S	Cr	Ni	Mo	Cu
≤0.18	≤0.5	≤1.50	≤0.02	≤0.01	≤0.9	≤1.2	≤0.6	≤0.6

Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of


GB/T222Q890D quenched and tempered high-strength steel is suitable for manufacturing steel structural parts such as coal mine hydraulic supports, heavy vehicles, and construction machinery that require good welding performance. For example, drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts used in mining and various engineering construction are designed with low-carbon equivalent components for quenched and tempered high-strength steel, which has good welding performance; Shot blasting treatment before quenching of the steel plate, heating of radiant tube in the quenching furnace, control of non-oxidation atmosphere and other measures make the steel plate have good surface quality; The design of the special roller table for the quenching machine, the partition water supply and cooling, etc., the mechanical properties of the high-quality steel plate are uniform, and it has a good plate shape.