asme b16.5 nickel alloy welding neck flanges class 600 SW flange Monel K500 WERKSTOFF NR. 2.4361 flange
Monel K500, UNS N05500 (QQ-N-286), is a precipitation hardenable nickel-copper alloy that combines the corrosion resistance of Monel Alloy 400 with higher strength (more than 2x stronger) and hardness.
Monel K500 flanges are popular in acid wells because of their resistance to acid environments. Specified ASTM B564 UNS N05500 blind flanges mention parameters such as grain size and mechanical parameters such as tensile strength, yield strength, and also elongation properties. In addition, UNS N04400 (QQ-N-281), a nickel-copper alloy, has high strength and excellent corrosion resistance in various media such as seawater, hydrofluoric acid, sulfuric acid and alkali. Monel 400 is commonly used in marine engineering, chemical and hydrocarbon processing applications.