What are the specifications of S31603EP grade ultra-clean stainless steel pipe?
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S31603EP grade ultra-clean stainless steel pipe is a high-performance stainless steel pipe designed specifically for the transportation of high-purity fluids. It is widely used in industries with extremely high cleanliness requirements, such as semiconductors, biopharmaceuticals, and food and beverage. Made of S31603 (i.e., 316L), it undergoes electrolytic polishing (EP) treatment, resulting in extremely low surface roughness and excellent corrosion resistance, effectively preventing particle shedding and metal ion precipitation. The main specifications are as follows: 1.Materials and Standards Material: S31603 (i.e., 316L), low-carbon austenitic stainless steel Standards: GB/T14976-2012, ASTM A269/A213, DIN/EN/JIS, etc. Corresponding grades: UNS S31603 or EN 1.4404 2. Chemical composition requirements Carbon (C): ≤0.03% Chromium (Cr): 16.0–18.0% ...