Nickel Alloys Alloy K500 Round Bar Overview
Zeon Exports supplies Nickel Alloy K500 (Monel, UNS N05500) round bars, an age-hardenable nickel-copper alloy combining Monel 400's corrosion resistance with roughly triple the yield strength for marine, oil & gas and aerospace applications.
Nickel Alloy K500 (Monel) Round Bar is machined into pump and propeller shafts, valve trim, springs and fasteners where high strength and seawater 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.
- 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 Round Bar
Nickel Alloy K500 (Monel) Round Bar is produced to internationally recognized bar specifications.
| Field | Detail |
|---|---|
| Material/Grade | Nickel Alloy K500 (Monel) |
| UNS | N05500 |
| DIN/Werkstoff Number | 2.4375 |
| Standards | ASTM B865 |
| Form | Round Bar |
| Finish | Hot rolled, turned, ground (as specified) |
| 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 Round Bar
Typical minimum mechanical properties for age-hardened UNS N05500 bar; 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 Round Bar retains Alloy 400's corrosion profile while adding significant strength.
- Seawater resistance: excellent resistance to seawater and marine atmospheres, ideal for propeller and pump shafts.
- 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 for instrumentation near magnetic-sensitive equipment.
Heat Resistance of Nickel Alloy K500 (Monel)
Nickel Alloy K500 round bar maintains its strength up to roughly 649°C (1,200°F) and stays 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 Round Bar
Beyond corrosion and heat performance, Monel K-500 round bar offers these additional properties.
- Roughly triple the yield strength of Alloy 400
- Good galling and wear resistance versus austenitic bolting
- Age hardened after cold working for maximum strength
- Good toughness maintained into low sub-zero temperatures
Benefits of Nickel Alloys Alloy K500 Round Bar
Choosing Monel K-500 round bar 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 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 Round Bar
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Frequently Asked Questions About Nickel Alloys Alloy K500 Round Bar
Common questions about Nickel Alloy K500 (Monel) Round Bar, 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: What standards apply to Alloy K500 round bar?
Ans. Round bar is manufactured to ASTM B865, certified to EN 10204 3.1 mill test certificates.
Q3: Is Alloy K500 magnetic?
Ans. No, Alloy K500 is virtually non-magnetic, remaining so down to about -101°C (-150°F).
Q4: 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.
Q5: Is Alloy K500 suitable for seawater service?
Ans. Yes, Alloy K500 has excellent resistance to seawater, widely used for propeller and pump shafts.
Q6: How does K500 differ from Alloy 400?
Ans. K500 adds aluminum and titanium for age hardening, giving roughly triple the yield strength of Alloy 400 while keeping similar corrosion resistance.
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, round bars are available cut-to-size and in custom dimensions on request for bulk industrial orders.
