Monel 400

Monel 400 is a solid-solution alloy made mainly of nickel and copper, with small amounts of iron, manganese, carbon, silicon and sulfur. The nickel (plus cobalt) content is at least 63%, which gives strong corrosion resistance, and toughness. Copper makes up 28–34%, adding strength and better resistance to seawater and acids. If the nickel content becomes too low, the alloy loses its resistance to extreme circumstances. If there is insufficient copper, it cannot withstand marine or chemical environments. Other trace elements, even in small percentages, affect hardness, workability, and wear resistance. Parag Metals, one of the leading Monel 400 suppliers, provides this alloy in various forms with reliable quality standards to industries worldwide.

This alloy combines high strength and outstanding corrosion resistance in a variety of environments. Tensile strength in the annealed condition ranges between 517-620 MPa (75-90 ksi), while yield strength is between 172-345 MPa (25-50 ksi). With a modulus of elasticity of about 179 GPa, Monel 400 holds its shape well under stress. The Poisson’s ratio of 0.32 shows that it stretches uniformly without losing stability. These values highlight why Monel 400 mechanical properties make it dependable in demanding marine, chemical, and engineering uses. Its toughness remains steady even at sub-zero temperatures, which makes it stand out compared to many other alloys.

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Monel 400 Sheet, Monel 400 Plate, Monel 400 Coils, Monel 400 Rods, Monel 400 Wires Suppliers in Mumbai, India.

Alloy 400 can be hot or cold worked, welded, and machined with ease. Heat treatment does not harden it, but can improve ductility and stress relief when needed. The alloy machines at a slower rate than steel, but it still produces smooth finishes with the right tools. It can be annealed at around 870°C (1600°F), giving better formability during processing. Monel 400 specifications cover a wide range of uses, where its balance of workability and strength makes it a trusted material choice.

Monel 400 finds use in marine and chemical processing industries where corrosion is the main challenge. Common applications include valves, pumps, propeller shafts, springs, marine fasteners, electronic components, chemical equipment, gasoline and fresh water tanks, crude petroleum stills, boiler feedwater heaters, heat exchangers, and deaerating heaters. It is supplied in different forms to suit varied needs, like sheets and plates for structural use, and round bars for precision components and machined parts. These forms ensure that alloy 400 can be formed for a wide range of applications, from heavy-duty vessels to precision-engineered components. For consistent performance across industries, choose Monel 400 from reliable suppliers with proven expertise.

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Monel 400 Specification

This table shows the Monel 400 ASTM standard along with grades, forms, and conditions. Knowing these details helps buyers and engineers select the right material for their projects with confidence.

Product	Monel 400
Equivalents	Alloy 400, UNS N04400, W.Nr. 2.4360
Items	Pipe, Tubes, Tubing, Fittings, Flanges, Valves, Fasteners, Sheet, Square Bar, Threaded Bar, Plate, Hexagon Bar, Fasteners and Fixings, Round Bar, Flat Bar, Rebar, Angle, Tube & Pipe, Wire
Size	1/4″ – 60″
Pipe Type	Seamless, Welded, ERW, Fabricated, Custom Size Pipes
Specifications	ASTM, ASME, DIN, GOST, JIS
Fittings Type	Butt Weld, Screwed & Socket Weld, Flanges, Instrumentation
Other Fittings	Elbows, Tees, Reducers, Caps, Stub Ends, Flanges (ANSI, Table E, D and H), Nuts, Bolts, Screws, Threaded Bars

Inconel Alloy 400 Chemical Composition

This table shows the monel 400 chemical composition, including the exact percentage of each element. Understanding this composition explains why the alloy has high resistance, longevity, and dependable performance in harsh conditions.

Element	Min%	Max%
Ni	63	–
Al	2.3	3.15
C	–	0.18
Fe	–	2.4
Mn	–	1.5
Si	–	0.5
Ti	0.35	0.85
S	–	0.01
Cu	27	33

Monel 400 Mechanical Properties

The Monel 400 mechanical properties such as strength and elasticity values. These details help in choosing the alloy for applications that demand toughness and stability under stress.

Tensile Strength, min.	Yield Strength, min.	Elongation, min.	Hardness, min.
1100 MPa / 160 ksi	790 MPa / 115 ksi	20%	300 HB

Monel 400 Physical Properties

This table covers Monel 400 density along with other basic physical values. Knowing these properties supports better design choices where weight, heat, and conductivity are critical factors.