Monel K-500 Supplier | Bar, Tube, Plate - Hangbo Alloy
Date: 2024年10月24日 Categories: All Products、Monel Views: 1425
Excerpt:
Monel K-500 (UNS N05500) supplier — ASTM B865. Age-hardenable Ni-Cu alloy with 3× strength of Monel 400. Used in pump shafts, propeller shafts, marine springs. Non-magnetic.
Hangbo Alloy Group provides a premium range of nickel-copper alloys, including Monel K-500 round bars, seamless pipes, forged components, and high-strength wire. Below is a comprehensive overview of Monel Alloy K-500:
Detailed Introduction to Monel Alloy K-500
MONEL® alloy K-500 (UNS N05500 / W.Nr. 2.4375) is a unique nickel-copper alloy that merges the exceptional corrosion resistance of Monel 400 with significantly enhanced strength and hardness. This performance boost is achieved through the addition of aluminum and titanium, followed by a controlled age-hardening process (precipitation hardening) which creates Ni3(Ti, Al) precipitates throughout the matrix.
Key Standards: ASTM B865 (Rod and Bar), SAE AMS 4676 (Rod and Bar), QQ-N-286.
Chemical Composition of Monel K-500 (UNS N05500)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 27.0 - 33.0 |
| Aluminum (Al) | 2.30 - 3.15 |
| Titanium (Ti) | 0.35 - 0.85 |
| Iron (Fe) | 2.0 max |
| Manganese (Mn) | 1.5 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.18 max |
Mechanical Properties of Aged Monel K-500
| Property | Value (Typical Aged) |
|---|---|
| Tensile Strength | 965 - 1310 MPa (140-190 ksi) |
| Yield Strength (0.2% Offset) | 690 - 1034 MPa (100-150 ksi) |
| Elongation | 20% - 30% |
| Hardness (Rockwell C) | 27 - 38 HRC |
Material Characteristics
- High Strength & Hardness: Achieved through age hardening, making it suitable for high-load applications where Monel 400 is insufficient.
- Non-Magnetic: Virtually non-magnetic down to very low temperatures, ideal for electronic and downhole instrumentation.
- Cryogenic Stability: Outstanding mechanical properties at sub-zero temperatures with no ductile-to-brittle transformation.
- Dimensional Stability: Exceptional stability in both long-time and cyclic tests, used in high-precision devices like gyros.
Common Applications of Monel K-500
- Marine Engineering: Chains, cables, fasteners, springs, and pump shafts for seawater service.
- Oil & Gas: Drill collars, instruments, safety lifts, and valves for sour-gas environments.
- Chemical Processing: Pump and valve components handling corrosive media.
- Pulp & Paper: Doctor blades and scrapers in paper production.
Pros & Cons of Alloy K-500
| Pros | Cons |
|---|---|
| Superior strength-to-weight ratio compared to Monel 400. | More susceptible to stress-corrosion cracking in certain aged conditions. |
| Excellent resistance to flowing seawater. | Aging process adds complexity and cost to production. |
| Non-magnetic behavior across wide temperature ranges. | Selectively oxidized surfaces may require pickling to restore non-magnetism. |
Frequently Asked Questions (FAQ)
Q: What is the main difference between Monel K-500 and Monel 400?
A: Monel K-500 is age-hardenable, providing approximately three times the yield strength and double the tensile strength of Monel 400 while maintaining similar corrosion resistance.
Q: Is Monel K-500 resistant to sour gas?
A: Yes, it shows excellent resistance in hydrogen sulfide (H2S) environments, making it a standard choice for downhole tools and oil well equipment.
Internal Links:
Explore more specialized alloys:
Monel 400 (UNS N04400) - Marine Engineering Standard
Inconel 718 (UNS N07718) - High Strength Superalloy
Production Process
Our Monel K-500 is produced using **VIM (Vacuum Induction Melting) + ESR (Electroslag Refining)** or VAR (Vacuum Arc Remelting) to ensure peak purity and uniform distribution of strengthening elements. Precise thermal processing is applied to achieve the required age-hardened state.
Testing & Inspection
- PMI Testing: Positive Material Identification to verify chemical composition.
- Magnetic Permeability: Verification of non-magnetic properties.
- Mechanical Testing: Tensile, yield, and hardness testing in the aged condition.
- NDT Inspection: Ultrasonic and dye penetrant testing for structural integrity.
Quality Control
We maintain a rigorous quality management system with end-to-end traceability. All products comply with **ASTM B865, AMS 4676, and NACE MR0175** standards, supported by comprehensive material test certificates.
Market Pain Points & Solutions
- Supply Consistency: We maintain deep stocks of Monel K-500 billets to bypass long mill lead times.
- Application Precision: Our technical team assists in selecting the optimal aging temper for specific pressure and corrosion requirements.
Deep Application Insights
- Oilfield Tooling: Used in MWD (Measurement While Drilling) tools where non-magnetic properties are vital for directional sensors.
- Aerospace: Applied in gyroscope components due to its unmatched dimensional stability.
Product Forms & Standards Comparison
| Product Form | Main Standard | Typical Range |
|---|---|---|
| Round Bar | ASTM B865 | Φ5mm - Φ400mm |
| Seamless Tube | ASTM B165/B163 | OD 6.35mm - 219mm |
| Plate/Sheet | ASTM B127 | T 0.5mm - 40mm |
