Horizon metal and alloys are a trusted Monel Alloy K-500 Nut Bolt Manufacturer in India, offering a comprehensive range of premium-quality Monel K-500 fasteners designed for demanding industrial applications. Our product portfolio includes Monel Alloy K-500 hex bolts, heavy hex bolts, stud bolts, threaded rods, socket head cap screws, hex nuts, heavy hex nuts, washers, U-bolts, eye bolts, and custom-engineered fasteners manufactured in accordance with international quality standards.
Monel Alloy K-500 (UNS N05500) is a precipitation-hardenable nickel-copper alloy that combines the outstanding corrosion resistance of Monel Alloy 400 with significantly higher strength and hardness. It exhibits exceptional resistance to seawater, alkalis, hydrofluoric acid, and a wide range of corrosive environments, making it the preferred material for marine engineering, offshore platforms, chemical processing, oil & gas, power generation, aerospace, and defence industries.
Our Monel K-500 fasteners are manufactured using high-quality raw materials and advanced production techniques to ensure dimensional accuracy, excellent mechanical performance, and long service life. Every product undergoes strict quality inspection and is supplied with Mill Test Certificates (MTC), ensuring complete material traceability and compliance with ASTM, ASME, DIN, ISO, and BS standards.
As a leading Monel Alloy K-500 fastener manufacturer and exporter, we serve customers across India, the Middle East, Europe, North America, Southeast Asia, Africa, and other global markets by delivering high-performance fastening solutions with competitive pricing and timely delivery.
Monel Alloy K-500 is a solid-solution nickel-copper alloy containing approximately 63% nickel and 28–34% copper. It offers outstanding corrosion resistance in both reducing and neutral environments while maintaining excellent mechanical strength over a wide temperature range. Due to its superior resistance to seawater and chemical corrosion, Monel Alloy 500 is extensively used for manufacturing industrial fasteners for critical applications.
We manufacture and supply a complete range of Monel Alloy K-500 Fasteners, including:
Specification | Details |
Product Name | Monel Alloy K-500 Nut Bolt |
Material Grade | Monel Alloy K-500 |
UNS Number | UNS N05500 |
Werkstoff No. | 2.4375 |
ASTM Standards | ASTM F467 / ASTM F468 |
ASME Standards | ASME SF467 / ASME SF468 |
Bolt Size | M3 to M100 |
Imperial Size | 1/8″ to 4″ |
Length | Up to 5000 mm |
Thread Type | Metric, UNC, UNF, BSW, BSF |
Form | Bolt, Nut, Screw, Washer, Stud Bolt, Threaded Rod, U-Bolt |
Manufacturing Process | Hot Forged, Cold Forged, CNC Machin |
Surface Finish | Natural, Bright, PTFE Coated, Black Oxide, Zinc Plated, Hot Dip Galvanized |
Packaging | Wooden Boxes, Cartons, Pallets, Export Worthy Packing |
Inspection | Third Party Inspection Available |
Test Certificate | EN 10204 3.1 / Mill Test Certificate |
Standards & Grades
Our Monel Alloy 500 fasteners are manufactured in accordance with internationally recognized standards:
Available thread standards include Metric, UNC, UNF, BSW, BSF, and customized threads.




| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 63.00 min |
| Copper (Cu) | 27.00 – 33.00 |
| Aluminium (Al) | 2.30 – 3.15 |
| Titanium (Ti) | 0.35 – 0.85 |
| Iron (Fe) | 2.00 max |
| Manganese (Mn) | 1.50 max |
| Carbon (C) | 0.25 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.01 max |
| Property | Value |
|---|---|
| Tensile Strength | 965 MPa (Min) |
| Yield Strength (0.2% Offset) | 690 MPa (Min) |
| Elongation | 20% (Min) |
| Hardness | 27–35 HRC |
| Density | 8.44 g/cm³ |
| Modulus of Elasticity | 179 GPa |
| Poisson’s Ratio | 0.32 |
| Melting Range | 1288–1343°C |
| Electrical Resistivity | 615 nΩ·m |
| Thermal Conductivity | 17.3 W/m·K |
| Specific Heat | 420 J/kg·K |
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ |
| Melting Range | 1288–1343°C |
| Modulus of Elasticity | 179 GPa |
| Thermal Conductivity | 17.3 W/m·K |
| Electrical Resistivity | 615 nΩ·m |
| Magnetic Permeability | < 1.001 |
| Specific Heat | 420 J/kg·K |
| Thermal Expansion (20–100°C) | 13.7 µm/m·°C |
Our Monel Alloy K-500 fasteners are manufactured in both metric and imperial dimensions to meet international standards.
| Specification | Available Range |
|---|---|
| Bolt Diameter | M3 to M100 |
| Imperial Diameter | 1/8″ to 4″ |
| Bolt Length | 6 mm to 5000 mm |
| Stud Bolt Length | Up to 5000 mm |
| Thread Standard | Metric, UNC, UNF, BSW, BSF |
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Positive Material Identification (PMI)
Chemical Composition Analysis
Tensile Testing
Yield Strength Testing
Hardness Testing
Impact Testing
Dimensional Inspection
Thread Gauge Inspection
Surface Finish Inspection
Ultrasonic Testing (When Required)
Dye Penetrant Testing (DPT)
Third-Party Inspection
Mill Test Certificates (EN 10204 3.1), laboratory reports, and inspection certificates are supplied upon request.
Monel Alloy K-500 is a precipitation-hardened nickel-copper alloy that offers exceptional corrosion resistance, high tensile strength, and excellent durability in marine and chemical environments.
2. What is the UNS designation for Monel Alloy K-500?
The UNS designation for Monel Alloy K-500 is UNS N05500.
3. Which standards do your Monel Alloy K-500 fasteners comply with?
Our fasteners are manufactured according to ASTM F467, ASTM F468, ASME SF467, ASME SF468, DIN, ISO, ANSI, and BS standards.
4. What types of Monel Alloy K-500 fasteners do you manufacture?
We manufacture hex bolts, heavy hex bolts, stud bolts, threaded rods, hex nuts, heavy hex nuts, socket head cap screws, U-bolts, eye bolts, anchor bolts, machine screws, set screws, and washers.
5. What industries use Monel Alloy K-500 fasteners?
Marine, offshore, oil & gas, petrochemical, aerospace, defence, desalination, chemical processing, power generation, pharmaceutical, and heavy engineering industries.
6. Are custom sizes available?
Yes. We manufacture Monel Alloy K-500 fasteners according to customer drawings, international standards, and custom specifications.
7. What thread types are available?
Metric, UNC, UNF, BSW, BSF, BSP, and customized thread profiles.
8. Do you provide Mill Test Certificates?
Yes. Every shipment can be supplied with EN 10204 3.1 Mill Test Certificates, PMI reports, and third-party inspection certificates upon request.
9. Do you export Monel Alloy K-500 fasteners worldwide?
Yes. We export to the USA, Canada, Europe, the Middle East, Southeast Asia, Africa, Australia, and South America.
10. What are the advantages of Monel Alloy K-500 over Monel 400?
Monel Alloy K-500 provides significantly higher tensile strength, yield strength, hardness, wear resistance, and fatigue resistance while maintaining excellent corrosion resistance.
comitted to delivering premium-quality fasteners that meet international standards and exceed customer expectations.
We specialize in manufacturing high-quality fasteners that cater to diverse industries, including oil & gas, petrochemical, marine, power generation, aerospace, and construction.
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