sa573 grade 70 high strength structural steel welding

The sa573 grade 70 high strength structural steel steel making furnace can only be used as primary refining, and the refining needs to be completed in the refining equipment outside the furnace, which is also called secondary refining. It is mainly through decarburization, desulfuration, denitrification and dephosphorization to improve the cleanness of the steel, to establish a chromium molybdenum low alloy steel with good oxidation resistance and high temperature strength, to remove unwanted harmful impurities from the steel, and to improve the sa573 grade 70 high strength structural steel internal quality of the steel.

Composition characteristics of sa573 grade 70 high strength structural steel product: (1) Low carbon: Due to high requirements for toughness, weldability and cold formability, its carbon content does not exceed 0.20%. 2) Add manganese-based alloying elements. 3) Adding auxiliary elements such as niobium, titanium or vanadium: a small amount of niobium, titanium or vanadium forms fine carbides or carbonitrides in the steel, which is beneficial to obtain fine ferrite grains and improve the strength and toughness of the steel.

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Our company has its own steel plate manufacturing plant, processing plant and steel pipe plant. We can machine the steel according to the sa573 grade 70 high strength structural steel customer's requirements and meet the customer's requirements. If you want to ask any questions about steel products, please contact us directly. Our customer service staff will give you a detailed answer. If you want to purchase sa573 grade 70 high strength structural steel steel products, please tell me your specific needs, we have professional business personnel to communicate with you.