Nickel Alloys Monel K500 Blind Flanges

Nickel Alloys Monel K500 Blind Flanges are solid disk pipe flanges used to close off the end of a piping system or vessel nozzle. Zeron Fasteners manufactures and supplies these vital high-strength components from the precipitation-hardenable nickel-copper alloy Monel K500 (UNS N05500). The primary function of this product is to provide a complete, reliable shut-off for pipeline isolation, maintenance, or testing. The solid nature of the flange must handle the full pressure of the system, demanding the highest level of mechanical strength and integrity. Monel K500 is specifically utilized for its superior strength (due to age-hardening) and exceptional resistance to corrosion in high-chloride environments and aggressive chemicals. Crucially, the material is compliant with NACE MR0175 standards, ensuring resistance to Sulfide Stress Corrosion Cracking (SSCC). The primary application of these Monel K500 Blind Flanges is in high-pressure testing sections, temporary pipeline terminations, and closing off critical pump or valve nozzles in offshore, marine, and chemical industries.

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Monel K500 Blind Flanges

Nickel Alloys Monel K500 Blind Flanges Chemical Composition

Element Content (%)
Nickel (Ni) 63.0 min
Copper (Cu) 27.0–33.0
Aluminum (Al) 2.30–3.15
Iron (Fe) 2.0 max
Manganese (Mn) 1.5 max
Titanium (Ti) 0.35–0.85
Carbon (C) 0.25 max

Nickel Alloys Monel K500 Blind Flanges Mechanical Properties

Property Value (Age-Hardened)
Tensile Strength (min) 1100 MPa (160 ksi)
Yield Strength (0.2% Offset min) 760 MPa (110 ksi)
Elongation in 4D (min) 20%
Hardness (Brinell typ.) 265-320 HB

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