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t45 steel tube

The epitome of strength and endurance, the T45 steel tube holds an esteemed spot within the expansive realm of high-strength seamless steel pipes. Highly regarded for its extraordinary caliber of quality, this steel tube is routinely chosen for fabrication of components requiring considerable durability and significant diameter in the machinery industry. Popular materials utilized for said purpose include 45#, 1045 and beyond. Boasting an impressive array of versatile applications, the T45 steel tube can be found in a number of other sectors such as the petroleum world, chemical production businesses, and boiler manufacturing.

45# steel, the prototype of T45 tubes, is an average sort of structural carbon steel. Its carbon portion makes up 0.42 to 0.50%, its manganese, silicon, and chromium each 0.17 to 0.37%, molybdenum 0.012 to 0.025%, whereas sulfur and phosphorus range from 0.024% to 0.041%, which accumulates a carbon equivalent Ceq of 0.47 to 0.55%. The metallurgical strengths are as follows: not less than 225Mpa yield strength, not less than 410Mpa tensile strength, more than 24% elongation, over 34J impact energy, the peak Brinell hardness is 187 or lower.

T45 steel tube stands out for its ability to create large-diameter, machinable components with superior strength, making it a frequent choice for the machinery manufacturing sector. In addition, it is beneficial when fabricating ring forgings and sleeve forgings. Petroleum applications of this steel tube include fabricating drill pipes, casings and tubing, while the chemical industry utilizes it for the production of heat exchangers, reaction kettles, and towers. Finally, its strong nature makes it an optimal selection for crafting high-pressure and ultra-high-pressure boilers in the field of boiler making.

Incorporating a high strength and good plasticity, T45 steel tube is quite machinable and weldable, when subjected to the process of normalizing or annealing. Unfortunately, due to its high carbon content and hardenability, over-treatment of 45# steel may occur, and therefore, this alloy is not recommendable for carburizing and surface hardening treatments. Consequently, during heat treatment of T45 steel tube it is important to guarantee the protection of its surface as it is prone to oxidation.


Post time: 2023-06-25

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