Monel 500 Flat Bars
Monel 500 (K-500 / UNS N05500) flat bars are high-performance nickel-copper-based alloy products designed for applications that demand exceptional corrosion resistance combined with elevated strength. Manufactured, stocked and exported by suppliers such as Rose Metal Industries, these flat bars are supplied in a variety of finishes (hot-rolled, cold-rolled, bright/turned, pickled and passivated) and are stocked to serve domestic markets across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), Andaman & Nicobar Islands as well as global customers. Their non-magnetic character, attractive surface finishes and long service life make them suitable for both marine and industrial installations..
Chemically, Monel 500 flat bars typically contain about 63–70% nickel and 27–33% copper, with controlled additions of aluminium (≈2.3–3.15%) and titanium (≈0.35–0.85%) which enable precipitation (age) hardening. Small amounts of iron, manganese and silicon are permitted while carbon and sulfur are kept to low limits. This combination yields an alloy that preserves the corrosion resistance of Monel 400 but can be heat treated to achieve much higher tensile strength and hardness, making it more suitable where mechanical loading and wear resistance matter..
In the aged/precipitation-hardened condition, Monel 500 flat bars show typical tensile strengths roughly in the 930–1,100 MPa range and 0.2% offset yield strengths around ~690 MPa, with elongation commonly 15–25% depending on section thickness and heat treatment. Hardness in the aged state commonly falls in the mid-Rockwell C range (approx. 28–40 HRC) depending on processing. The alloy’s density (~8.44 g/cm³), melting range (~1,315–1,350 °C), and resistance to stress-corrosion cracking and chloride attack make it attractive for demanding environments..
Standard specifications for Monel 500 flat bars typically reference UNS N05500 and relevant standards such as ASTM B865 / ASME SB865 for bars and related forms; suppliers like Rose Metal Industries can provide material to customer-specified standards, issue Mill Test Certificates (MTCs), and arrange PMI or third-party inspection on request. Flat bar dimension ranges commonly stocked span thin strip/flat bar sizes (for example 3–12 mm thick by various widths) up to heavy structural flats (e.g., 150 mm+ thickness and wide widths), with custom cut-to-length services available to meet fabrication or machining needs.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Alloy | Monel 500 / Monel K-500 (UNS N05500, Werkstoff 2.4375) |
| Standards | ASTM B865 / ASME SB865 (bars/rods), AMS 4676, QQ-N-286, applicable ASTM/ASME/BS/DIN |
| Forms | Flat bars, sheets, plates, round bars, hex bars, forgings |
| Temper | Annealed (soft) / Aged (precipitation-hardened) / Cold-worked |
| Surface Finish | Hot-rolled, mill finish, pickled, bright-polished, ground |
| Testing & Certification | Dimensional, tensile, hardness, PMI, MTC (EN 10204 3.1 available), third-party inspection |
Chemical Composition (Typical Limits)
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 63.0 | 70.0 |
| Copper (Cu) | 27.0 | 33.0 |
| Aluminium (Al) | 2.30 | 3.15 |
| Titanium (Ti) | 0.35 | 0.85 |
| Iron (Fe) | — | 2.0 |
| Manganese (Mn) | — | 1.5 |
| Silicon (Si) | — | 0.5 |
| Carbon (C) | — | 0.25 (max) |
| Sulfur (S) | — | 0.01 (max) |
Mechanical Properties (Typical / Aged Condition)
| Property | Typical Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | ~930 – 1100 MPa | Varies with aging and section |
| Yield Strength (0.2% offset) | ~690 MPa | Approx. typical in aged condition |
| Elongation | ~15 – 25% | Depends on thickness and temper |
| Hardness | ~30 – 40 HRC | In aged/hardened condition |
| Density | 8.44 g/cm³ | — |
| Melting Range | ~1315 – 1350 °C | — |
Equivalent Grades & Designations
| Designation | Reference |
|---|---|
| UNS | N05500 |
| Werkstoff No. | 2.4375 |
| Common Specs | ASTM B865, AMS 4676, QQ-N-286 |
Dimension Chart — Flat Bars (Typical Stock)
| Thickness (mm) | Width (mm) | Lengths (mm) | Remarks |
|---|---|---|---|
| 3 – 6 | 20 – 100 | 1000 / 2000 / 3000 | Thin flat bars for machining & fabrication |
| 8 – 12 | 20 – 200 | 2000 / 3000 | Common engineering sizes |
| 16 – 25 | 50 – 300 | 2000 / 3000 / cut | Structural & heavy components |
| 30 – 75 | 100 – 500 | Mill / cut to size | Heavy sections / fabricated parts |
| Custom | Custom | Cut-to-length | Available on request |
Applications
- Valve bodies, flanges, and valve seats for marine and chemical service
- Pump components (impeller shrouds, wear strips), shafts and couplings
- Fasteners, studs and high-strength machined parts
- Heat exchanger tubesheets, baffles and corrosion-resistant structural members
- Oil & gas downhole tools, springs and sour-gas exposed equipment
- Specialty manufacturing: aerospace, nuclear and chemical processing equipment
Typical applications for Monel 500 flat bars include pump and valve components, shafts, valve seats and stems, fasteners, springs and structural parts used in offshore platforms, seawater handling systems, chemical processing equipment, oil & gas installations (including sour-gas service), heat exchangers and condensers. The ability to combine machinability, high mechanical strength and corrosion resistance makes Monel 500 flat bars a popular choice for manufacturers and fabricators serving marine, petrochemical, chemical and power industries.
For procurement needs, Rose Metal Industries and similar stockists emphasize availability in multiple finishes and lengths, quality documentation (MTC, EN 10204), and export capability to global markets. They commonly market Monel 500 flat bars with SEO and regional keywords to reach buyers in Chennai, Coimbatore, Visakhapatnam, Bengaluru, Hyderabad, Port Blair and other industrial centres across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry and the Andaman & Nicobar Islands — ensuring local supply chains and international project support..
Frequently Asked Questions (FAQ)
Q1: What is Monel 500 and how does it differ from Monel 400?
A: Monel 500 (K-500 / UNS N05500) is an age-hardenable nickel-copper alloy containing aluminium and titanium for precipitation hardening. Compared to Monel 400, Monel 500 attains significantly higher strength and hardness after aging while maintaining excellent corrosion resistance.
Q2: Do you provide mill test certificates (MTC) and inspection reports?
A: Yes — Rose Metal Industries issues MTCs (EN 10204 3.1), can arrange third-party inspection, and provide PMI/chemical analysis reports on request.
Q3: Which standards apply for Monel 500 flat bars?
A: Typical standards include ASTM B865 / ASME SB865 for bars/rods, AMS 4676, QQ-N-286 and customer-specified international standards. Final selection depends on product form and application.
Q4: Can you supply custom sizes, finish and temper?
A: Yes — we supply custom thicknesses, widths, cut-to-length services, aged or annealed condition, and surface finishes (pickled, bright, polished) as per project requirements.
Q5: Do you supply across South India and islands?
A: Yes — Rose Metal Industries supplies Monel 500 flat bars across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, Andaman & Nicobar Islands and exports globally.