1.4547 Steel Corrosion Resistant EN 10028-7 Compliant Blind Flange Slip on Plate Flange

1.4547 steel is a high-alloy austenitic stainless steel, also known under trade names like Superaustenitic stainless or by EN designation X1CrNiMoCuN20-18-7. It is designed for excellent corrosion resistance, especially in chloride-containing and acidic environments such as seawater and chemical processing applications.

Typical chemical composition of 1.4547 (in weight percent, approximate ranges):

• Carbon (C): ≤ 0.02%
• Silicon (Si): ≤ 0.7%
• Manganese (Mn): ≤ 2.0%
• Phosphorus (P): ≤ 0.03%
• Sulfur (S): ≤ 0.01%
• Chromium (Cr): 19.5 – 20.5%
• Nickel (Ni): 17.5 – 18.5%
• Molybdenum (Mo): 6.0 – 6.5%
• Copper (Cu): 0.5 – 1.5%
• Nitrogen (N): 0.18 – 0.25%

For exact values required for design or certification purposes, always refer to the relevant material standard (e.g., EN 10088) or the mill test certificate (MTC) from your steel supplier, as composition can vary slightly by producer within the allowed range.