Zeron Fastners
Nickel Alloys Monel K500 Nuts
Nickel Alloys Monel K500 Nuts are high-performance threaded fasteners manufactured from the precipitation-hardenable nickel-copper alloy Monel K500 (UNS N05500). Zeron Fasteners specializes in supplying these superior high-strength nuts, which are specifically engineered to match the extreme tensile loads of Monel K500 bolts and stud bolts. This product inherits the excellent corrosion resistance of Monel 400 but adds significantly greater mechanical strength and hardness, making it ideal for highly stressed applications. The material's critical features include resistance to sour gas environments (Sulfide Stress Corrosion Cracking or SSCC), adherence to NACE MR0175 standards, and a notable property of being non-magnetic down to -101°C. The primary application of these Monel K500 Nuts is in flanged connections in deep-well petroleum and natural gas production, pump and propeller shafts, marine fixtures, and in chemical processing equipment where maximum joint integrity and long-term corrosion immunity under high stress are mandatory.
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Nickel Alloys Monel K500 Nuts 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 Nuts 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 |