Q355 A572GR50 C Kanal

Toplina obrada proces od Q355 čelik
Žarenje: Annealing involves grijanje Q355 čelik to a temperatura iznad it kritično temperatura i držanje at to temperatura for a specifično vrijeme, then slowly hlađenje it. The process helps refine the microstructure, eliminate internal stress, i improve machinability and duktilnost.

Gašenje i temperiranje: Gašenje involves brzo hlađenje od Q355 čelik od visoke temperature do soba temperatura, obično using voda ili ulje. Ovo proces proizvodi a tvrdo, lomljiva struktura zvana martensite. The steel is then tempered by podgrijavanje it to a specifično temperatura and držanje it za a certain iznos of time to reduce lomljivost i increase toughness while maintaining the the željed hardness level.
Isothermal quenching: Isothermal quenching is a heat treatment process that involves quenching Q355 steel to a temperature just above the martensitic starting temperature and holding it at that temperature for an extended period of time. This process results in a structure called bainite, which has both high strength and good ductility.

ASTM A572 Gr.50 čelik is an American standard High strength Low alloy (HSLA) struktural čelik. It has a minimum yield strength of 345 MPa (50 ksi) and is common used in struktural primjene takav as konstrukcija i mostovi. On the other hand, Q355 steel is a Chinese standard low-alloy high-strength constructal steel. Although they have similar strength levels, the chemical composition and mechanical properties may differ.

Channel steel is a carbon struktural čelik used in konstrukcija and strojevi, is a complex section of the section steel, it section shape is groove-shape. Channel steel is head used in building structure, curtain wall engineering, mehanički equipment and vehicle proizvodnja. In use, it is required to have better zavarivanje, zakivanje i sveobuhvatno mehaničko svojstva. The raw material billet for produking channel steel is carbon bonded steel or low alloy steel billet with carbon content not exceeding 0}.25%. The finished channel steel is delivered by hot working, normalizing or hot rolling.

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