Monel 400 Round Bars Supplier & Exporter

Aurum Overseas supplies high-performance Monel 400 Round Bars engineered for resistance to rapidly flowing seawater, hydrofluoric acid, and deaerated sulfuric acid environments. Solid-solution hardened with nickel and copper, our bar stock provides mechanical toughness and fatigue resistance from sub-zero cryogenic conditions up to 1000°F (538°C).

Monel 400 UNS N04400 round bars for marine propeller shafts and seawater piping

As a prominent Monel 400 Round Bars Supplier, we stock certified ASTM B164 Monel 400 Round Bars, ASTM A276 Monel 400 Round Bars, and ASTM A479 Monel 400 Round Bars accompanied by EN 10204 3.1 MTCs. We offer precision centerless ground bright bars, hot-rolled bar stock, heavy forged rounds, and custom cut-to-length solutions for prompt global delivery.

Serving as a trusted Monel 400 Round Bars Exporter, we supply critical marine and chemical production projects across North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands, Norway), the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman), and Asia-Pacific (Singapore, Malaysia, Australia).

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Technical Specifications

Technical Parameter	Monel 400
Material Designation	Monel 400 / Alloy 400
UNS Number	UNS N04400
Werkstoff Number	2.4360
Manufacturing Standards	ASTM B164, ASTM A276, ASTM A479, ASME SB164, BS 3076 NA13
Diameter Capability	3 mm to 500 mm (1/8" to 20" NB)
Length Specifications	3 Meters, 6 Meters, Cut-to-Length
Dimensional Tolerances	ISO h8, h9, h10, h11, DIN 1013
Delivery Conditions	Annealed, Cold Drawn, Hot Worked, Stress Relieved

Mechanical Properties & Chemical Composition

Equivalent Grades of Monel 400 Bars

Standard	Werkstoff Nr.	UNS	JIS	EN
Monel 400	2.4360	N04400	NW 4400	NiCu30Fe

Chemical Composition of ASTM B164 Monel 400 Round Bars

Chemical Element	Composition Range (%)
Nickel (Ni)	63.0 min
Copper (Cu)	28.0 – 34.0
Iron (Fe)	1.0 – 2.5
Manganese (Mn)	2.0 max
Carbon (C)	0.3 max
Silicon (Si)	0.5 max
Aluminum (Al)	0.50 max
Sulfur (S)	0.02 max

Mechanical Properties of UNS N04400 Round Bars

Property	Value
Ultimate Tensile Strength	550 MPa (80,000 Psi) min
Yield Strength (0.2% Offset)	240 MPa (35,000 Psi) min
Elongation (%)	40% min
Density	8.8 g/cm³
Melting Point	1350 °C (2460 °F)

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Types of Monel 400 Round Bars

Aurum Overseas supplies ASTM B164, ASTM A276 and ASTM A479 Monel 400 Round Bars in precision bright and heavy forged conditions for marine and chemical service.

Monel 400 Bright Bars

Monel 400 Forged Bars

Key Advantages of UNS N04400 Round Bars

Seawater & Marine Defense

High nickel-copper composition (63% Ni, 28–34% Cu) prevents biofouling, cavitation, and erosion in high-velocity marine currents.

Hydrofluoric Acid Resistance

Exceptional immunity to hydrofluoric acid across all concentrations up to boiling points, plus non-oxidizing hydrochloric and sulfuric acid streams.

Zero Stress Cracking

Pure nickel-copper matrix eliminates chloride-induced stress corrosion cracking common in standard stainless steels.

Cryogenic Toughness

Retains high ductility, toughness, and mechanical strength without brittle failure under extreme sub-zero temperatures.

Key Applications of Monel 400 Round Bars

Industry Sector	Typical Components	Operating Conditions
Marine Engineering	Propeller shafts, rudder stocks, pump impellers, and marine fasteners	High-velocity seawater exposure, brackish tidal waters, and bio-fouling risks
Chemical Processing	Hydrofluoric acid (HF) alkylation shafts, reboilers, and neutralizer valves	Hot hydrofluoric acid streams, organic chemicals, and deaerated sulfuric acid
Oil & Gas Extraction	Wellhead components, downhole tools, and riser equipment	Chloride-laden brine solutions, hydrogen sulfide gas, and deep-well environments
Power Generation	Boiler feedwater heaters, steam generator tubing, and deaerator rods	High-pressure feed water, elevated temperatures, and thermal cycling
Salt Production	Evaporator bodies, salt shafting, and brine heater shafts	Concentrated sodium chloride brines and slurry flows

Quality Testing & Inspection

Every batch of ASTM A479 Monel 400 Round Bars supplied by Aurum Overseas undergoes strict quality verification:

Positive Material Identification (PMI): XRF analysis verifies exact ratios of nickel (63% min) and copper (28–34%).
Mechanical Tensile Testing: Confirms yield strength, ultimate tensile strength, and 40% minimum elongation limits per ASTM B164.
Ultrasonic Volumetric Testing: Full internal scanning per ASTM A388 checks for subsurface voids or forging inclusions.
Dimensional Inspection: Laser micrometer checks confirm strict compliance with target ISO diameter tolerances.

Global Export Markets

As an established Monel 400 Round Bars Exporter, Aurum Overseas supplies fully certified UNS N04400 Round Bars to global marine and chemical engineering centers: