Flaw detection of A573 Grade 65 carbon structural steel

EN10025-2 S355K2 is a non-alloy steel quality with 355Mpa minimum yield strength when thickness ≤16mm.
It takes low temperature impact testing at -20℃ with minimum energy 40J. For the advantage of S355K2 steel plate, A573 Grade 65 carbon structural steel, it offers good weldability with conventional welding processes. In addition to their good mechanical properties, structural steels also have very acceptable toughness values. S355K2 steel plates are widely used in low temperature surroundings such as ice river, deep oceans.

How to prevent A573 Grade 65 carbon structural steel, steel plate cutting cracks? 1. Preheat the steel plate before cutting, and the preheating temperature depends on the quality grade and thickness of the steel plate. However, it needs to be heated evenly. 2. The cutting speed is reduced appropriately, but its reliability is not as good as preheating. It is suggested to preheat the cutting belt with flame gun cavitation several times before cutting, and the preheating temperature should reach about 180℃.

The cold working performance of A573 Grade 65 carbon structural steel and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of A573 Grade 65 carbon structural steel and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.

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