This alloy is known for its simple core alloy mechanism featuring two different groups of microstructures called austenites and ferrites accordingly. Many household as well as industrial grade appliances have been lined with the Duplex Stainless Steel alloy parts and components, mainly due to its easy availability and durability that holds well among all the structures and different working parts of a system. Duplex Steel comes in variances of grades which contain different constituent materials, and works accordingly in varying temperature degrees as specified. The alloy has been forged in accordance to all international standards laid down by the committees concerned devising regulations. Increase in quantities of chromium and molybdenum enhances its resistance against corrosion and pitting, enabling the use of this alloy in chemical prevalent areas.
Forged fittings made using Duplex Steel alloy are capable of being used in high pressure areas where, flowing steam and alkaline supply can easily corrode ordinary metals and cut its functional life short but, this is not the case when it comes to Duplex Stainless Steel forged fittings which are crafted in compliance with various different standards, concerned with the dimension and native material used in the forged fittings. Duplex Steel is semi-hardened due to the 50-50 austenite/ferrite microstructure which makes machining easier. Specification :
1/2"NB TO 4"NB IN
ASTM A182 / ASME SA182
ANSI/ASME B16.11 & BS3799, etc.
UNS S31803, S32205, S2205, S32550, S32750, S32760.