Duplex steel UNS S32205 / S31803: what you need to know

1.4462-check what a steel grade and get it closer

The stainless steel 1.4462 is a type of stainless steel, which retains all its properties when working in moderately aggressive environments such as chloride or acids. In addition, it is very important that this species is a duplex with two-phase commit. Its most important feature is the resistance to stress corrosion cracking and to intergranular corrosion. In addition, the characteristic is its ferritic-austenitic structure, which is very resistant to high temperatures. Resistance to intergranular corrosion, cracking and pitting corrosion is a very important advantage of this grade.

F51, F60 – what is symbols?

Steel F51, F60 belongs to the Group of very corrosion-resistant steels that have increased resistance to abrasive wear and erosion. Stainless steel has the highest resistance at a temperature of 100 °C for calcium chloride in a concentration of 40%. In contrast, the lithium chloride at concentrations of 33% at 120 ° c for sodium chloride at concentrations up to 28% of the show resistance at a temperature of 155 °C.

Steels S32205, S31803 and their comparison, which is what you need to know before choosing this material

S32205, S31803 steels are very often used in the paper, power, petrochemical, mining, aerospace, shipbuilding and chemical industries. The main mechanical properties of duplex 1.4462 steels are, above all, their great flexibility and tensile strength from 650 – 850 MPa. The steel retains its yield strength of 450 MPa during processing. In machining, the steel extends by 25 %. The hardness of this stainless steel grade S32205, S31803 is 200 GPa. If the steel operates at higher temperatures, it has a lower yield strength and lower elasticity.
It is available in the form of round, square, rolled, peeled and drawn bars. In addition, it is also supplied in the form of freely forged bars and forgings, cold-rolled and hot-rolled sheets, seamless tubes, capillary tubes and hot-rolled sleeves. This steel grade S32205 is used for the production of fans, installations necessary in the petrochemical and processing industry, installations other than edge installations, pressurised tanks, rotors, tanks, press rollers, machine parts and equipment intended for the paper industry. High corrosion resistance, durability, ease of machining, and wide application in many branches of the modern industry makes this material really very valuable and worthy of attention.