Zeron Fastners
Nickel Alloys Monel K500 Stud Bolts
Nickel Alloys Monel K500 Stud Bolts are high-performance threaded fasteners manufactured from the precipitation-hardenable nickel-copper alloy Monel K500 (UNS N05500). Zeron Fasteners specializes in supplying and manufacturing these superior high-strength studs, which are primarily used for flange bolting in the most aggressive industrial environments. This product uniquely combines the excellent corrosion resistance of Monel 400 with the enhanced strength and hardness achieved through age-hardening (due to additions of aluminum and titanium). Crucially, Monel K500 offers exceptional resistance to sour gas environments (Sulfide Stress Corrosion Cracking or SSCC), making it compliant with NACE MR0175 standards for oil and gas applications. The primary application of these Monel K500 Stud Bolts is in deep-well pumping equipment, critical offshore platform connections, chemical reactors, pump and valve shafts, and flanged piping systems requiring maximum pressure integrity and corrosion immunity.
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Nickel Alloys Monel K500 Stud Bolts 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 Stud Bolts 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 |