Polycarbonate Plastic Sheets. Polycarbonate sheet is as clear as glass and 250 times stronger. It's also 30 times stronger than acrylic sheet - offering a margin of safety that no other clear glazing material can beat. With its inherent design flexibility, polycarbonate can be cut or cold-formed on site during installation without the pre ... Nitronic 50 Round Bar. If you need Nitronic 50 Round Bar for your manufacturing process, let Houston-based Specialty Steel Supply deliver the goods. We are one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels in the United States. Nitronic 60 Stainless Steel is used for the valve seat, and valve bushing All Stainless Steel hardware Mating weld flanges are 304L Three lower ports and two top ports for easy install (air ports (5): M10 x 1.0 thread), no need to rotate the actuator top at all, plugs included for unused ports Ultra compact design fits in very tight spaces NITRONIC 60® (Alloy 218) (UNS S21800) Cr 17, Mn 8, Ni 8.5, Si 4, N 0.13, C 0.10, Fe Bal. High Performance Alloys stocks and produces this grade in the following forms: Bar, wire, sheet, plate, coil, fasteners and forgings. My customer wants to minimize magnetic permeability for a small diameter shaft. He has chosen Nitronic 40 and is getting good results. Apparently, Nitronic 40 is a trademarked material of AK Steel. The "generic" equivlaent of Nitronic 40 is 21-6-9. I would gain some supply flexibility if I could also use 21-6-9. Is there a difference in these ... China Nitronic 50 Plate manufacturers - Select 2019 high quality Nitronic 50 Plate products in best price from certified Chinese Plate manufacturers, Aluminum Plate suppliers, wholesalers and factory on Made-in-China.com Metallographic Stainless Steel Etchants Etching stainless steels can be somewhat difficult due to the anti-corrosive nature of stainless steel.