Manufacturer, Supplier & Exporter of Monel 400 Round Bar

Monel 400 Round Bar is one of the most trusted nickel-copper alloy products used in highly demanding industrial environments due to its excellent corrosion resistance, strength, and thermal stability. Riddhi Siddhi Impex is a leading manufacturer and domestic supplier of Monel 400 Round Bars, offering premium-quality material engineered to meet national and international standards. Known for its outstanding durability and resistance to sea water and acidic environments, this alloy is widely preferred in numerous industrial sectors. With years of expertise, the company ensures that every Monel 400 Round Bar is produced with precision and superior quality control...

Riddhi Siddhi Impex is recognized across India as a prominent supplier of Monel 400 Round Bars, fulfilling bulk and customized requirements for diverse industries. The company supplies these bars to major Indian domestic cities such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, and Rajkot. Their strong supply chain and logistics network ensure timely delivery to cities like Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, and Varanasi. Customers can rely on them for consistent quality, competitive pricing, and excellent service.

Monel 400 Round Bar is widely appreciated for its high strength and exceptional corrosion resistance, especially in marine and chemical processing environments. This alloy contains a high percentage of nickel and copper, making it highly resistant to flowing seawater, organic acids, and alkaline solutions. It performs exceptionally well in high-temperature applications and retains its mechanical properties even under extreme conditions. Industries such as petrochemical, marine engineering, oil refineries, and power generation prefer Monel 400 for its reliability...

Another key advantage of choosing Monel 400 Round Bars from Riddhi Siddhi Impex is their availability in a wide range of sizes, forms, and finishes. Whether customers require hot-rolled, cold-drawn, annealed, polished, or precision-ground bars, the company offers all variations to suit specific project demands. They also provide customized cutting, machining, and finishing services, making the product ideal for both standard and specialized industrial applications...

With extensive coverage in major industrial areas, Riddhi Siddhi Impex supplies Monel 400 Round Bars to regions such as Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, and Mangalore. Their distribution network further includes key Maharashtra and Gujarat hubs such as Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, and Rajpipla. This wide reach ensures seamless supply for small- to large-scale industrial projects.

Monel 400 Round Bar

Specification

Product Name	Monel 400 Round Bar
Manufacturer / Supplier	Riddhi Siddhi Impex
Alloy / UNS	Monel® 400 — UNS N04400
Base Material	Nickel-Copper Alloy (Nickel ~63%, Copper ~28–34%)
Common Standards	Common product specifications & tests (refer to supplier MTRs / order): ASTM / ASME product specs for nickel-copper bars (confirm exact spec per product)
Diameter (typical stocked)	3 mm – 300 mm (commonly 6 mm – 150 mm)
Length	250 mm – 6000 mm (cut-to-length, single/double random)
Forms & Finishes	Hot-rolled, Cold-drawn, Turned, Centerless/Precision ground, Polished
Applications	Marine hardware, seawater valves & fittings, chemical processing, pumps & shafts, heat exchangers, fasteners, instrumentation

Note: values in this page are typical/reference only — always request Mill Test Reports (MTR) from Riddhi Siddhi Impex for guaranteed, heat-specific values.

Chemical Composition (Typical / Reference, wt%)

Element	Typical Content (wt%)
Nickel (Ni)	~ 63
Copper (Cu)	28 – 34
Iron (Fe)	≤ 2.5 (balance)
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 0.5
Carbon (C)	≤ 0.30
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.024

Mechanical Properties (Typical / Annealed)

Property	Typical Value (Reference)
Ultimate Tensile Strength (UTS)	~ 550 – 700 MPa
Yield Strength (0.2% offset)	~ 200 – 350 MPa
Elongation (in 50 mm)	≥ 30% (often 30–50%)
Hardness	Annealed: moderate — see supplier data (Rockwell/Brinell varies by finish)
Density	≈ 8.8 g/cm³
Melting Range	≈ 1270 – 1350 °C (approx.)
Corrosion Resistance	Excellent in seawater, hydrofluoric & sulfuric acids (depends on conditions)

Important — mechanical values vary with temper, diameter and processing. Ask the supplier for MTR / specific test certificates for the lot you purchase.

Dimension Chart (Nominal / Typical Stock)

Nominal Size (mm)	Nominal Size (in)	Typical Finish	Standard Length
3 – 25	~1/8" – 1"	Cold drawn / Ground	250 – 3000 mm
26 – 75	~1" – 3"	Hot rolled / Turned	500 – 6000 mm
76 – 150	~3" – 6"	Hot rolled / Turned	1000 – 6000 mm
151 – 300	~6" – 12"	Forged / Turned (special)	Cut to order

Equivalent Grades / Identifiers

Designation	Equivalent / Notes
UNS	N04400
Common Trade Name	Monel 400 (Monel® is a trade name)
European / Werkstoff	Often referenced under Ni-Cu alloy numbering (confirm exact EN/WN with mill certificates)

Equivalent Standards (Reference)

Standard	Description / Use
ASTM / ASME (various)	Product specifications for nickel-copper bars, rods and forgings (confirm specific ASTM/ASME number per product form with supplier)
ISO / EN	Where applicable, European product standards & testing may be referenced — verify with supplier MTRs
Special / Industry Specs	Marine & chemical industry customers often require additional certification/testing (e.g., PMI, pitting tests) — request when ordering

Other Types / Related Nickel-Copper Products

Type	Description
Monel K-500	Precipitation-hardenable Ni-Cu alloy with higher strength (contains Al, Ti)
Nickel 200 / 201	Commercially pure nickel with different corrosion profile
Cupronickel (Cu-Ni)	Lower-cost copper-nickel alloys for seawater piping and heat exchangers
Nickel Alloys (e.g., Inconel)	Higher Ni-Cr or Ni-Cr-Mo alloys for elevated temperature and oxidation resistance

Monel 400 Round Bar also offers excellent weldability and good mechanical properties across a wide temperature range. Its resistance to stress corrosion cracking makes it suitable for high-pressure and high-stress applications such as pump shafts, heat exchangers, valves, fasteners, and marine fittings. The material is also known for its low magnetic permeability, making it valuable in sensitive applications such as aerospace and precision instrumentation..

Frequently Asked Questions (FAQs)

Q1: What certifications will Riddhi Siddhi Impex supply with Monel 400 round bars?

A1: Reputable suppliers provide Mill Test Reports (MTR) showing chemical analysis, heat/lot number traceability and mechanical test results. Specify any additional inspections or certificates you need (e.g., PMI, ultrasonic, hardness).

Q2: Is Monel 400 weldable and machinable?

A2: Yes — Monel 400 is generally weldable using appropriate procedures and is machinable, although it is tougher than many steels and benefits from correct tooling and speeds. Discuss machining specifics with your supplier/processor.

Q3: What are common applications for Monel 400 round bars?

A3: Typical uses include marine hardware, seawater valves and fittings, pump shafts, heat exchanger tubesheets, chemical process equipment, and fasteners used in corrosive environments.

Q4: Do you supply Monel 400 across India?

A4: Yes — Riddhi Siddhi Impex supplies Monel 400 round bars to major domestic cities and industrial hubs such as Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Ankleshwar, Navsari, Valsad, Rajpipla and more.