Welding ASTM A709 carbon steel plate sheet steel equivalent grades

ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates are structural quality carbon steel plates just as ASTM A709 carbon steel plate sheet. ASTM A573 steel gardes are in three tensile strength ranges intended primarily for structural applications at atmospheric temperatures for which improved toughness is required.

Sulfur is a very harmful element in ASTM A709 carbon steel plate sheet steel. The presence of sulfur will increase the hot brittleness of steel, reduce the various mechanical properties of ASTM A709 carbon steel plate sheet steel, and reduce the weldability, impact toughness, fatigue resistance and corrosion resistance of steel.

Medium thick steel plate refers to the steel plate with a thickness of not less than 3 mm but less than 20 mm. It can be produced by reversible hot rolling medium and heavy plate mill, and its thin products can also be processed by cold rolling mill. ASTM A709 carbon steel plate sheet, Medium thick steel plates are mainly used in boilers, shipbuilding, railway cars, automobiles, containers, military industry, national defense, construction, bridges and containers.

The unloading of Australian coal has ceased, and the quota for imported coal has been reduced. The domestic coal supply gap has gradually emerged. In the case of high inventories of power plants, there are hidden concerns about subsequent coal transfer channels. At present, there has been an increase in the number of ships that have completed the formalities of anchoring ships at Qin Port and Huanghua Port, indicating that a new round of procurement will kick off, prompting traders to continue to raise prices.