Nickel Alloys Alloy K500 Fasteners Overview
Zeon Exports supplies Nickel Alloy K500 (Monel, UNS N05500) fasteners – bolts, nuts and studs – an age-hardenable nickel-copper alloy combining Monel 400's corrosion resistance with roughly triple the yield strength for marine and oil & gas bolted joints.
Nickel Alloy K500 (Monel) Fasteners secure bolted connections in seawater and chemical process equipment where high strength and corrosion resistance are both required. Precipitation hardened through aluminum and titanium additions, it retains the corrosion resistance of Alloy 400 while offering roughly triple the yield strength and double the tensile strength, resisting galling in marine bolted joints.
- Age-hardened via aluminum and titanium for very high strength
- Non-magnetic to as low as -101°C (-150°F)
- EN 10204 3.1 certified, export-ready worldwide
Quick Specifications of Nickel Alloys Alloy K500 Fasteners
Nickel Alloy K500 (Monel) Fasteners are produced to internationally recognized bolting specifications.
| Field | Detail |
|---|---|
| Material/Grade | Nickel Alloy K500 (Monel) |
| UNS | N05500 |
| DIN/Werkstoff Number | 2.4375 |
| Standards | ASTM B865 |
| Form | Bolts, Nuts, Studs |
| Finish | As specified (confirm on order) |
| Heat Treatment | Age Hardened (Precipitation Hardened) |
| Certification | EN 10204 3.1 |
Equivalent Grades of Alloy K500
Alloy K500 (Monel K-500) is recognized under several international designations below.
| UNS | DIN/Werkstoff Number | Common Trade Name | ASTM/ASME Standard |
|---|---|---|---|
| N05500 | 2.4375 | Monel K-500 | ASTM B865 |
Chemical Composition of Alloy K500
Composition per ASTM B865 for UNS N05500; exact limits can vary slightly by specification and heat.
| Element | Composition (%) |
|---|---|
| Nickel (Ni), min | 63.0 |
| Copper (Cu) | 27.0 – 33.0 |
| Aluminum (Al) | 2.30 – 3.15 |
| Titanium (Ti) | 0.35 – 0.85 |
| Iron (Fe), max | 2.0 |
| Manganese (Mn), max | 1.5 |
| Silicon (Si), max | 0.50 |
Physical Properties of Nickel Alloy K500 (Monel)
Physical properties for Monel K-500, confirmed against manufacturer data.
| Property | Value |
|---|---|
| Density | 8.44 g/cm3 |
| Melting Range | 1315 – 1350°C |
| Magnetic Behaviour | Non-magnetic to about -101°C (-150°F) |
Mechanical Properties of Nickel Alloys Alloy K500 Fasteners
Typical minimum mechanical properties for age-hardened UNS N05500; exact ASTM B865 minimums vary by size and condition – confirm on order.
| Property | Minimum Value |
|---|---|
| Tensile Strength | 1000 MPa (145 ksi) |
| Yield Strength (0.2% offset) | 690 MPa (100 ksi) |
| Elongation | 20% |
| Hardness | 25 – 35 HRC (typical) |
| Condition | Age Hardened |
Corrosion Resistance of Nickel Alloy K500 (Monel)
- Nickel Alloy K500 Fasteners retain Alloy 400's corrosion profile while adding significant strength.
- Seawater resistance: excellent resistance to seawater and marine atmospheres, widely used in marine bolting.
- Acid resistance: strong resistance to hydrofluoric acid and reducing acids, inherited from the base Alloy 400 chemistry.
- Non-magnetic: remains virtually non-magnetic down to -101°C, useful near magnetic-sensitive equipment.
Heat Resistance of Nickel Alloy K500 (Monel)
Nickel Alloy K500 fasteners maintain their strength up to roughly 649°C (1,200°F) and stay ductile and tough at low sub-zero temperatures. Always confirm exact service limits against the governing standard and application before specifying.
Key Properties of Nickel Alloys Alloy K500 Fasteners
Beyond corrosion and heat performance, Monel K-500 fasteners offer these additional properties.
- Roughly triple the yield strength of Alloy 400
- Excellent galling and wear resistance for marine bolted joints
- Age hardened after cold working for maximum strength
- Good toughness maintained into low sub-zero temperatures
Benefits of Nickel Alloys Alloy K500 Fasteners
Choosing Monel K-500 fasteners from Zeon Exports delivers measurable advantages for your project.
- High strength combined with proven Monel-family corrosion resistance
- Full MTC 3.1 documentation for project QA/QC requirements
- Multiple sizes, threads and finishes to match exact project specs
- Reliable bulk supply with consistent ready stock
- Competitive export pricing for large industrial orders
- Fast dispatch to global project sites and ports
Related Products
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Request a Quote for Nickel Alloys Alloy K500 Fasteners
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Call: +91 98205 33105
Email: info@zeonexports.com
Website: www.zeonexports.com
Address: A-7/9, Saboo Building, Ardeshir Dady Cross Lane, Cawasji Patel Tank Road, Mumbai – 400004
Frequently Asked Questions About Nickel Alloys Alloy K500 Fasteners
Common questions about Nickel Alloy K500 (Monel) Fasteners, answered below.
Q1: What is Nickel Alloy K500 (Monel)?
Ans. Monel K-500 (UNS N05500) is an age-hardenable nickel-copper alloy with roughly triple the yield strength of Alloy 400.
Q2: Which fastener types are available in Alloy K500?
Ans. We supply bolts, nuts and studs manufactured to ASTM B865 across standard thread sizes and lengths.
Q3: What standards do Alloy K500 fasteners meet?
Ans. Fasteners are manufactured to ASTM B865, certified to EN 10204 3.1 mill test certificates.
Q4: Is Alloy K500 magnetic?
Ans. No, Alloy K500 is virtually non-magnetic, remaining so down to about -101°C (-150°F).
Q5: What is the maximum service temperature?
Ans. Alloy K500 maintains its strength up to roughly 649°C (1,200°F); confirm exact limits against your design code.
Q6: Is Alloy K500 suitable for seawater service?
Ans. Yes, Alloy K500 has excellent resistance to seawater, widely used in marine bolting applications.
Q7: What certification is provided with orders?
Ans. Every order ships with EN 10204 3.1 mill test certificates confirming grade, heat and dimensions.
Q8: Does Zeon Exports supply custom sizes?
Ans. Yes, fasteners are available in custom thread sizes and lengths on request for bulk industrial orders.



