... , extractors etc., which made of carbon & alloy steel, stainless steel. The pressure vessels, columns, reactors, towers, heat ... material such as special material (Monel, Inconel, Incoloy, Hastelloy, etc.), stainless steel ( duplex stainless, UNS31803, SAF2205, SAF2507, etc. ), ... 316, 316L, etc. ), and their cladding steels, carbon steel and other alloys (16MnDR, 09MnNiDR, 15MnVR, 15CrMoR, 20MnMoNb, ...