Monel 400 Round Bar is a nickel-copper alloy bar selected for components requiring corrosion resistance, mechanical strength and dependable performance in demanding service. Identified as UNS N04400 and also known as Alloy 400, it is used for marine hardware, chemical-processing components, pump and valve parts, shafts, fasteners and heat-exchanger equipment. Virami Steel is a trusted Monel 400 Round Bar supplier and exporter in Mumbai, India, serving industrial, OEM, EPC and project requirements. Buyers can specify grade, diameter, length, condition, finish and inspection requirements when requesting a quotation so the offered material can be matched to the intended application and applicable specification.
Monel 400 Round Bar is a solid-solution nickel-copper alloy product identified as UNS N04400 and W.Nr. 2.4360 / 2.4361. The alloy combines useful mechanical strength and toughness with resistance to many corrosive environments, including conditions encountered in marine and chemical-processing service. Unlike precipitation-hardening nickel alloys, Alloy 400 is strengthened mainly through cold working rather than age hardening.
In round-bar form, the material is commonly machined or fabricated into shafts, fasteners, valve parts, pump components, fittings and other engineered items. Selection should consider the actual process medium, temperature, mechanical loading, product condition and governing material specification rather than corrosion resistance alone.
For procurement, the material designation, applicable standard, product form and required condition should be stated clearly. ASTM B164 covers nickel-copper alloy rod and bar including UNS N04400 in hot-worked and cold-worked conditions.
| Specification | Monel 400 Round Bar Details |
|---|---|
| Grade | Monel 400 / Alloy 400 |
| UNS | N04400 |
| Werkstoff | 2.4360 / 2.4361 |
| Applicable ASTM Standard | ASTM B164 for rod and bar |
| Product Form | Round Bar / Rod |
| Manufacturing Condition | Hot-worked or cold-worked as applicable |
| Diameter / Size Range | Available in custom diameters and sizes as per project requirements; confirm availability with Virami Steel. |
| Length | Available in standard and custom lengths as per buyer and project requirements. |
| Surface Finish | Cold Drawn or Belt Polished |
| Supply Condition | Cold Drawn or Belt Polished Condition |
| Testing / Certification | Material Test Certificate (MTC) with applicable quality reports and certificates |
The limiting composition of Monel Alloy 400 is controlled around nickel and copper with restricted additions of iron, manganese, carbon, silicon and sulfur.
| Element | Typical / Specified Content (%) |
|---|---|
| Nickel + Cobalt | 63.0 min. |
| Copper | 28.0–34.0 |
| Iron | 2.5 max. |
| Manganese | 2.0 max. |
| Carbon | 0.30 max. |
| Silicon | 0.50 max. |
| Sulfur | 0.024 max. |
This nickel-copper chemistry provides characteristic resistance to many marine and process environments while retaining useful toughness and strength for machined and fabricated components.
Mechanical properties vary with bar size, working method and condition. The values below are representative published ranges for rod and bar, not universal purchase limits for every diameter or temper.
| Property | Annealed Rod / Bar | Hot-Finished Rod / Bar |
|---|---|---|
| Tensile Strength | 517–620 MPa | 552–758 MPa |
| Yield Strength, 0.2% Offset | 172–345 MPa | 276–690 MPa |
| Elongation | 35–60% | 30–60% |
| Density | 8.80 g/cm³ | 8.80 g/cm³ |
| Melting Range | 1300–1350°C | 1300–1350°C |
| Modulus of Elasticity, Tension | Approx. 179 GPa | Approx. 179 GPa |
Cold-drawn or stress-relieved material may show different strength, elongation and hardness. Final acceptance values should be taken from the applicable standard, ordered condition and certified test documentation.
Monel 400 bar requirements should be specified by diameter, overall length, dimensional tolerance, surface condition and required metallurgical condition. Depending on sourcing needs, round bar may be requested in hot-worked, cold-worked, annealed, forged, bright, peeled, polished, centreless-ground or cut-to-length forms; actual availability should be confirmed with Virami Steel before ordering.
For machined components, buyers should also state tolerance, straightness, machining allowance or surface-finish requirements. Where a project specification applies, include the ASTM designation, inspection criteria and documentation at the enquiry stage to avoid ambiguity during material selection and quotation.
Monel 400 Round Bar is used where a component needs the combined benefit of corrosion resistance, toughness and usable mechanical strength. In marine systems, it may be machined into pump shafts, propeller-related shaft components, fasteners, fittings and hardware exposed to seawater or salt-laden conditions. Pump and valve manufacturers use Alloy 400 for stems, shafts, trim and other wetted components where material compatibility is suitable.
Chemical and process-equipment fabricators use UNS N04400 bar for machined parts associated with process vessels, piping systems, heat exchangers and fluid-handling equipment. It is also used for bolting, industrial shafts, fittings and general engineered parts exposed to corrosive service. In oil, gas and refinery projects, the grade may be specified for selected components after evaluating process chemistry, temperature, pressure and project material requirements. Application suitability should always be confirmed against actual service conditions.
Users include marine and shipbuilding companies, chemical and petrochemical plants, pump and valve manufacturers, heat-exchanger fabricators, oil and gas contractors, refinery-equipment manufacturers, water-treatment and desalination projects, power and process industries, OEMs, EPC contractors and general engineering companies. Procurement teams typically select the grade according to corrosion exposure, design load, machining requirements, dimensions and applicable project standards.
Industrial buyers should define inspection and documentation requirements before placing an order. Important controls for Monel 400 bar can include material identification and traceability, chemical verification, tensile testing, dimensional inspection, surface examination and heat-number correlation with mill documentation. ASTM B164 requires chemical and mechanical conformity for covered rod and bar products, with testing dependent on specification requirements.
Any requirement for a material test certificate, specific inspection level, supplementary testing, third-party inspection or purchaser witness should be stated in the enquiry. Virami Steel’s availability for specific documentation or inspection services should be confirmed for the individual order.
Virami Steel is based in Mumbai and lists Monel bars within its round-bar product range, supporting enquiries from industrial buyers in India and overseas markets. As a Monel 400 Round Bar supplier in India, the company can be approached for standard purchasing requirements and project-specific enquiries where dimensions, quantity, condition and documentation are clearly defined.
Buyers seeking a Monel 400 Round Bar Manufacturer in India or a sourcing partner for OEM and EPC requirements should provide the complete technical purchase description rather than only the grade name. Export enquiries should also state destination, packing expectations, inspection requirements and applicable project specifications so commercial and technical details can be reviewed before supply confirmation.
Send us your required grade or UNS designation, ASTM specification, diameter, length, quantity, finish or condition, testing and documentation requirements, and delivery destination.
