Zeron Fastners
Nickel Alloys Monel K500 Slip-On Flanges
Nickel Alloys Monel K500 Slip-On Flanges (SO Flanges) are widely used pipe flanges known for their ease of installation and lower manufacturing cost. Zeron Fasteners manufactures and supplies these components from the high-quality, precipitation-hardenable nickel-copper alloy Monel K500 (UNS N05500). The product is designed to slip over the pipe and is then secured by welding both inside and outside the flange bore. Monel K500 is chosen for this application due to its superior strength and exceptional corrosion resistance in high-chloride, seawater, and aggressive chemical environments. The material complies with NACE MR0175 standards for resistance to Sulfide Stress Corrosion Cracking (SSCC). The primary application of these Monel K500 Slip-On Flanges is in non-critical to moderately severe service piping, including fire water systems, low-pressure process lines, and general industrial applications in sour gas and marine facilities.
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Nickel Alloys Monel K500 Slip-On 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 Slip-On 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 |