Monel K-500 polished bar
Monel K-500 polished bar is a nickel-copper alloy (with about 63% nickel, around 30% copper, and strengthened by adding aluminum and titanium). It is a precision machining material. It has a smooth and shiny metal surface after being polished.
Monel K-500 polished bar has the excellent corrosion resistance of Monel 400. It also has higher strength and hardness because of age hardening. It is used in areas that need high mechanical properties and a good surface finish.
Monel K-500 polished bar is widely used in marine engineering (ship shafts, seawater pumps and valves), petrochemical industry (acid-resistant valves, downhole tools), aerospace (engine parts), and medical and food equipment (corrosion-resistant instruments). Its high strength, corrosion resistance, and precision surface make it an ideal material for extreme environments and high-standard industries.
Features of Monel K-500 polished bar
Excellent Corrosion Resistance: Monel K-500 polished bar resists chloride stress corrosion cracking in seawater, acidic environments, and high-temperature steam. It has better acid and alkali resistance than ordinary stainless steel.
High Strength and Wear Resistance: After age hardening, Monel K-500 polished bar has a tensile strength of over 1000 MPa. It also keeps good toughness. It is suitable for high-load situations.
Surface Optimization: The polished surface of Monel K-500 polished bar reduces friction. It stops micro-cracks from forming. This improves its fatigue resistance and appearance.
Temperature Adaptability: Monel K-500 polished bar has stable performance from -200°C to 480°C. It is suitable for extreme temperature environments.

Applications of Monel K-500 polished bar
Marine Engineering: Monel K-500 polished bar is used in ship shafts, pump and valve components, and seawater desalination equipment. It resists salt spray corrosion.
Petrochemical Industry: Monel K-500 polished bar is used in downhole tools and valve stems. It can stand H₂S and acidic media.
Aerospace: Monel K-500 polished bar is used in engine fasteners and turbine blades. It meets the needs of being lightweight and strong.
Medical and Food: Monel K-500 polished bar is used in surgical instruments and food processing parts. It meets the standards of being pollution-free and easy to clean.

|
Parameter |
Specification Range |
Unit |
Remarks |
|
Diameter |
5mm ~ 150mm |
mm |
Custom sizes available |
|
Length |
1000mm ~ 6000mm |
mm |
Standard straight bars, customizable |
|
Tolerance |
±0.05mm ~ ±0.1mm (High-precision polish) |
mm |
Adjustable per customer requirements |
|
Surface Finish |
Ra ≤ 0.4μm (Mirror polish) |
μm |
Mechanical or electropolish options |
|
Tensile Strength |
≥1000 MPa |
MPa |
After age-hardening |
|
Yield Strength |
≥700 MPa |
MPa |
|
|
Elongation |
≥20% |
% |
|
|
Hardness |
25 ~ 35 HRC |
HRC |
Adjustable via heat treatment |
|
Density |
8.44 |
g/cm³ |
|
|
Temperature Range |
-200°C ~ +480°C |
°C |
Long-term stable working range |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Monel K-500 polished bar ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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