Monel R-405

Monel R-405
Monel R-405 (UNS N04405) is a free-machining nickel-copper alloy, a modified grade of Monel 400 with controlled sulfur addition for improved chip breaking and machinability. It retains excellent corrosion resistance to seawater, acids, alkalis, and chloride environments, while offering good mechanical strength and ductility. It features stable performance across low to elevated temperatures, good weldability, and resistance to stress corrosion cracking. Ideal for precision machined parts, it balances superior machinability and reliable corrosion performance.
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Product Specification

Equivalent Grade

UNS: N04405

W.Nr.: 2.4361

Chinese Standard: NS3102

Standard

● Sheet/Plate: ASTM B127

Seamless Pipe: ASTM B163

Bar: ASTM B164

Designed specifically for free cutting, complying with free-cutting nickel-copper alloy standards

Alloy TypeNickel-Copper Alloy (Free-Cutting Type, Chromium-Free, Selenium-added to improve machinability)
StandardSheet, Bar, Pipe, Tube, Fittings, Flange, Welding Materials, Forgings, Free-Cutting Bars, Precision Mechanical Parts
Key Properties

● Inherits the excellent corrosion resistance of Monel 400, resistant to seawater, salt solutions and neutral/alkaline media

Selenium-added for excellent machinability, processing efficiency much higher than ordinary Monel alloys

Stable mechanical properties, good strength and toughness, good hot and cold forming performance

Resistant to hydrofluoric acid and fluoride corrosion, no stress corrosion cracking tendency, good weldability

Applicable EnvironmentCorrosion-resistant scenarios requiring precision cutting, offshore engineering, seawater desalination, fluorine chemical industry, oil and gas extraction, shipbuilding, precision mechanical processing
Typical ApplicationsPrecision Mechanical Cutting Parts, Valve Cores, Pump Components, Marine Precision Pipe Fittings, Fluorine Chemical Equipment Accessories, Oil And Gas Pipeline Connectors, Instrumentation Components, etc.


Packaging and Shipping

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Strength Demonstration

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Complete Products

We offer a comprehensive range of steel products for diverse industrial needs

Professional Services

We provide one-stop professional steel services with dedicated technical support

Customization Supported

We support tailored steel customization to match your specific project requirements

Quality Control

We implement strict full-process quality control for all steel products supplied

Fast Delivery

We ensure fast and on-time delivery for all your steel order requirements

After-Sales Service

We offer reliable all-round after-sales service for all steel product purchases

Production and Testing

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FAQ

Q: What is the terms of packing?
A:

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.

Q: Could you provide the samples?
A:

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Q: How could you guarantee your products?
A:

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q: Do you make custom products?
A:

Yes, we could make custom products according to your specific requirements.

Q: Do you accept third-party inspection?
A:

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Q: Can I go to your company to visit?
A:

Of course, we welcome customers from all over the world to visit our factory.

Q: What product information do I need to provide?
A:

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q: What is your delivery time?
A:

For stocks, we could transport the goods to loading port within 7 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Q: Do you have any discounts for large orders?
A:

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

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