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Product Overview
Introduction To Monel R405 / Alloy R405 / UNS N04405
MOKSH TUBES & FITTINGS LLP is a leading manufacturer, supplier, exporter, importer, and stockist of MONEL R405 (UNS N04405) products, including Pipes & Tubes, Sheets & Plates, Coils, Round Bars, Forgings, Pipe Fittings, Flanges, Fasteners, Welding Rods, and Custom-Machined Components.
MONEL R405 is a nickel copper alloy similar to Monel 400, but it is specially modified with controlled sulfur content to improve its machinability. This grade is known for excellent resistance to seawater, hydrofluoric acid, sulfuric acid, alkalis, and high-temperature steam. R405 retains high strength and toughness across a wide temperature range and is particularly suitable for automatic screw machines and precision-machined components in marine and chemical environments.
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MONEL® K500 Specifications (UNS N05500)
| Category | Details |
|---|---|
| Grade | MONEL® K500 / Alloy K500 / UNS N05500 |
| Material Type | Precipitation-Hardened Nickel–Copper Alloy |
| Typical Chemical Composition | Ni ≥63%, Cu 27–33%, Al 2.3–3.15%, Ti 0.35–0.85% |
| Available Conditions | Annealed, Solution Treated, Cold Worked |
| Heat Treatment | Aging / Precipitation Hardening, Stress Relieving |
| Testing Offered | Tensile, Hardness, Chemical, Corrosion, NDT on request |
| Certification | EN 10204 3.1 / 3.2 (Mill Test Certificate) |
👉 Aluminum and titanium additions enable age-hardening, giving MONEL® K500 its exceptionally high strength.
Chemical Composition of MONEL® K500
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 27.0 – 33.0 |
| Aluminum (Al) | 2.3 – 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) | 0.25 max |
| Sulfur (S) | 0.01 max |
Technical Composition of MONEL® K500
Physical Properties of MONEL® K500
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ |
| Melting Range | 1315 – 1350 °C |
| Elastic Modulus (Tension) | 179 GPa |
| Modulus of Rigidity | ~65.5 GPa |
| Poisson’s Ratio | 0.32 |
| Magnetic Properties | Non-Magnetic |
Heat Treatment of MONEL® K500
| Process | Temperature Range | Procedure |
|---|---|---|
| Solution Treatment | 980 – 1010 °C | Water quench or air cool |
| Aging / Precipitation Hardening | 675 – 705 °C | Air cool for maximum strength |
| Stress Relieving | 540 – 650 °C | Hold 1–2 hours, air cool |
| Softening (Optional) | 870 – 980 °C | Furnace cool |
| Hot Working Prep | 870 – 980 °C | Uniform heating before forming |
Mechanical Properties of MONEL® K500
| Product Form | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness |
|---|---|---|---|---|
| Rod & Bar (Annealed) | 345 – 552 MPa | 207 – 345 MPa | 60 – 75% | 10 – 20 HRB |
| Cold-Drawn Rod | 379 – 586 MPa | 241 – 379 MPa | 55 – 70% | 15 – 25 HRB |
| Strip (Soft Temper) | 414 – 552 MPa | 276 – 414 MPa | 80 – 95% | ≤20 HRB |
| Tube & Pipe | 414 – 621 MPa | 276 – 448 MPa | 70 – 95% | 12 – 22 HRB |
| Wire (Annealed) | 379 – 517 MPa | 207 – 345 MPa | 80 – 97% | — |
Available Forms & Size Range – MONEL® K500
| Product Form | Size Range / Description |
|---|---|
| Round Bars | 10 mm – 350 mm |
| Flat, Square & Hex Bars | Custom sizes up to 250 mm |
| Sheets & Plates | 1.5 – 100 mm (Width 600 – 2500 mm) |
| Coils & Strips | 0.3 – 8 mm |
| Seamless & Welded Pipes / Tubes | OD 6 – 273 mm, WT 1 – 25 mm |
| Forged Components | Blocks, rings, bushings as per drawing |
International Standards & Equivalent Grades – MONEL® K500
| Standard | Equivalent Grade |
|---|---|
| UNS | N05500 |
| W.Nr (DIN) | 2.4376 |
| ASTM | B127, B164, B165, B564, B725 |
| EN | NiCu30AlTi |
| BS | NA 16 |
| JIS | NW 5500 |
| GOST | МНЖКмц 28-2.5-1.5 |
Products in Monel R405
MONEL Alloy R-405 , (UNS N04405) is a nickel-copper alloy known for its excellent machinability and corrosion resistance. It is typically supplied in rod and bar form, with standard sizes readily available from stock. For specific applications, wire and specialty shapes can also be sourced through custom converters.
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Seamless Pipes
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Welded Pipes (ERW & EFW)
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Tubes (Capillary, U-Bend)
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Sheets & Plates
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Coils & Strips
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Round Bars, Flat Bars, Hex Bars, Square Bars
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Pipe Fittings (Elbows, Tees, Reducers, Caps, Stub Ends)
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Flanges (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
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Fasteners (Bolts, Nuts, Screws, Washers, Studs)
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Custom Fabricated Components
This alloy meets several recognized industry standards, including:
MONEL R-405 is a reliable choice for applications requiring both strength and corrosion resistance, particularly where precision machining is essential.
Uses and Advantages
Improved machinability due to controlled sulfur content
Excellent corrosion resistance in marine and chemical environments
High strength and toughness at both cryogenic and elevated temperatures
Good resistance to hydrofluoric acid and alkaline environments
Cost-effective for precision machining on automated equipment
Applications of Monel R405
Monel R405 is a specialty nickel-copper alloy developed for exceptional machinability while preserving the core corrosion-resistant properties of Monel 400. Its sulfur-enhanced chemistry allows for high-speed machining, making it an ideal choice for components that require tight tolerances, dimensional stability, and long service life. Below are the key applications where Monel R405 excels:
Automatic Screw Machine Components
Monel R405 is the preferred material for high-volume production of precision parts on automatic and CNC screw machines. Typical components include threaded fittings, shafts, bolts, valve stems, nuts, connectors, pump impellers, and inserts.
Chemical & Petrochemical Processing
Widely used for equipment handling hydrofluoric acid, sulfuric acid, alkalis, and other corrosive media. Common applications include process pumps, mixers, heat exchangers, and valve trim components.
Oil & Gas Industry
Monel R405 is ideal for parts used in sour gas (H₂S) environments and high-pressure systems. Applications include drill collars, pump shafts, control valves, downhole tools, and non-magnetic components for directional drilling.
Marine and Offshore Engineering
Used in harsh saltwater and subsea environments. R405 is trusted for shaft sleeves, seawater valves, marine hardware, fasteners, and corrosion-prone mechanical assemblies.
Nuclear and Power Generation
Selected for its corrosion resistance and mechanical reliability in turbine systems, steam systems, and auxiliary nuclear components where radiation and chemical exposure are a concern.
Electrical, Instrumentation & Sensor Housings
Thanks to its excellent conductivity and machinability, R405 is used in terminals, switchgear parts, pressure sensor housings, and grounding elements in corrosive industrial setups.
Defense & Aerospace Applications
Employed for precision-machined fittings, lock nuts, spring components, and fasteners used in naval equipment, submarines, and aircraft exposed to corrosive and extreme mechanical conditions.
Pump & Valve Manufacturing
Preferred for shafts, impellers, seats, bushings, bearings, and guides due to its strength, anti-galling characteristics, and long-term corrosion resistance in service.
Food & Pharmaceutical Equipment
Where non-reactive, corrosion-resistant, and hygienic materials are required for valves, connectors, and transfer components exposed to mild acids or clean-in-place systems.
Monel R405 combines machinability and corrosion resistance like few other materials, making it the optimal choice for mission-critical components in high-performance industries.
WHY CHOOSE US?
MONEL R405 Price (India)
Typical Range: ₹2,400 – ₹3,800 per kg
(Price varies by OD, wall thickness, form, and finish)
Contact us for exact quotation based on size and quantity.
FAQ's
What is Monel R405 and how does it differ from Monel 400?
Monel R405 (UNS N04405) is a nickel-copper alloy that offers the same corrosion resistance and mechanical strength as Monel 400, but with added sulfur content to improve machinability. This modification makes Monel R405 particularly suitable for high-speed automatic screw machines, while still retaining excellent resistance to seawater, acids, alkalis, and high-temperature steam.
What types of Monel R405 products are available at Moksh Tubes & Fittings LLP?
Moksh Tubes & Fittings LLP supplies a wide range of Monel R405 products including seamless and welded pipes, tubes, sheets, plates, coils, round bars, pipe fittings, flanges, fasteners, welding rods, forgings, and custom-machined components. These products are available in both standard and tailor-made dimensions, ensuring reliable performance in marine, oil and gas, chemical, aerospace, and power generation industries.
What are the key benefits of using Monel R405 in industrial applications?
The main advantages of Monel R405 include excellent machinability due to controlled sulfur content, outstanding resistance to seawater and corrosive chemicals, high strength and toughness at both cryogenic and elevated temperatures, and suitability for automated machining processes. These properties make Monel R405 a cost effective and long lasting solution for industries requiring precision components and reliable performance under extreme conditions.
Which industries commonly use Monel R405 alloy products?
Monel R405 is widely used in industries such as marine and offshore engineering, oil and gas exploration, chemical and petrochemical processing, power generation, aerospace, defense, and medical equipment manufacturing. Typical applications include pump shafts, valve stems, fasteners, drill collars, screw machine parts, impellers, turbine components, and electrical sensor housings where machinability and corrosion resistance are equally important.
Why choose Moksh Tubes & Fittings LLP for Monel R405 supply?
Moksh Tubes & Fittings LLP is a leading manufacturer, supplier, and global exporter of Monel R405 products, trusted for its high quality raw materials, precision machining, and customized solutions. With ISO certified processes, quick delivery schedules, and strong global logistics, the company ensures reliable supply for critical industries. Its expertise in Monel alloys and commitment to quality assurance make it the preferred partner for clients worldwide.
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