S355J2 material introduction
First, S355J2 steel plate introduction
S355J2 is a low-alloy high-strength structural steel plate, and the implementation standard of S355J2 steel plate is EN10025 special technical conditions.
Second, S355J2 steel plate performance index introduction
S355J2 steel plate has its own; High strength, high toughness, fatigue resistance, impact resistance, corrosion resistance, welding, easy processing and other steel plate comprehensive quality.
Iii. Introduction of S355J2 steel plate delivery status
S355J2 steel plate is delivered in controlled tie state by default, and can be delivered in normalizing + tempering and normalizing state according to different needs
S355J2 steel plate thickness inspection can be 'NB1, NB2, NB3'
S355J2 steel plate thickness extension can be made 'z15, z25, z35'
What is the use of steel plate thickness inspection?
Answer; Detect cracks or defects in metal materials or components. The commonly used inspection methods are: X-ray inspection, ultrasonic inspection, magnetic particle inspection, penetration inspection, eddy current inspection, gamma ray inspection, fluorescent inspection, color inspection and so on. Physical testing is non-destructive testing without chemical changes.
Non-destructive testing is a test means to check the surface and internal quality of the inspected part without damaging the working condition of the workpiece or raw material.
A: Under the premise of not damaging the material matrix, the detection of cracks or lack of metal materials or components has higher stress requirements, mainly to ensure that the steel plate with higher stress directions such as high Bridges, as well as steel with special stress directions such as rail. For unqualified steel plates, there are certain internal defects in the steel plate, which will crack and expand during welding. There are internal cracks with more serious internal defects, and the steel plate is first damaged in the heart of the steel plate by the force, and then extends to the entire thickness direction.
The density of S355J2 steel plate is 7.85 cubic meters
S355J2 steel plate because of its own has a variety of high-quality performance, but also by the manufacturing industry consistent love and recognition, later because of social recognition, the frequent use of manufacturing and manufacturers continue to optimize and upgrade the material gradually S355J2 steel plate has become one of the most commonly used steel plate in China.
