Monel Alloy R-405 Introduction to Characteristics and Execution Standards

Monel Alloy R-405 Introduction to Characteristics and Execution Standards

Common Trade Names: Monel R405; Alloy R405; Nickel 405; Monel 405; Alloy 405.

Monel nickel-copper alloy R-405 (UNS N04405) is the free-machining grade of alloy 400. Its greater sulfur content enhances machinability. It has essentially the same corrosion resistance and physical properties as alloy 400, but a slightly different range of mechanical properties. Alloy R-405 is used chiefly for automatic screw machine stock and is not generally recommended for other applications

Available Product Forms: Round bar, hexagon and wire;

Specifications:MONEL Alloy R-405 is designated UNS N04405;

Bar and Rod: ASME SB-164, ASTM B-164, Federal QQN-281, SAE AMS 4674 & 7234, Military MIL-N-894, NACE MR-01-75.

Monel Alloy R-405Chemical Composition

Limiting Chemical Composition, %  by Weight  

Nickel (plus Cobalt).....................................................63.0 min.

Carbon..........................................................................0.3max.

Manganese...................................................................2.0 max.

Iron................................................................................2.5max.

Sulfur.......................................................................0.025-0.060;

Silicon...........................................................................0.5max.

Copper......................................................................28.0 -34.0.