AMS 4640 Nickel Aluminum Bronze Manufacturer, Supplier & Exporter
AMS 4640 Nickel Aluminium Bronze Manufacturer in India, AMS 4640 Nickel Aluminium Bronze Round Bars Supplier, Nickel Aluminium Bronze Instrumentation Fittings Manufacturer, AMS 4640 C63000 Nickel Aluminium Bronze Tube Sheets Supplier, AMS 4540 Nickel Aluminium Bronze Forged Elbow Exporter, AMS 4640 Nickel Aluminium Bronze Machined Components Manufacturer
AMS 4640 Nickel Aluminum Bronze is a high-strength copper-based alloy engineered to deliver exceptional performance in demanding industrial environments. Known for its excellent corrosion resistance, particularly in seawater and marine atmospheres, this alloy offers superior durability, wear resistance, and outstanding mechanical properties. The presence of nickel and aluminum enhances its strength while providing excellent resistance to cavitation, erosion, and stress corrosion cracking, making it an ideal choice for critical applications in marine, offshore, oil & gas, power generation, and heavy engineering industries. AMS 4640 also exhibits good thermal stability and reliable performance under high-load conditions, ensuring long service life with minimal maintenance.
AMS 4640 Nickel Aluminum Bronze (C63000)
Cunimet Alloys Pvt. Ltd. is a trusted manufacturer and supplier of premium-quality AMS 4640 Nickel Aluminum Bronze products, delivering materials that meet stringent international standards and customer specifications. With advanced manufacturing capabilities and strict quality control processes, the company ensures precision, consistency, and reliability in every product. We manufacture AMS 4640 in a wide range of shapes, including bars and rods, tube sheets, and precision machined components such as instrumentation fittings, flanges, forged elbows, tees, rings, and circles. Each product is carefully engineered to support high-performance applications across diverse industries.
For inquiries, quotations, or technical assistance, contact Cunimet Alloys Pvt. Ltd. at sales@cunimetalloys.com, where our team is committed to providing responsive service and tailored material solutions.
Uses of AMS 4640 Nickel Aluminum Bronze:
- Marine Hardware: Widely used for propeller shafts, ship fittings, pump components, and seawater valves due to its excellent resistance to saltwater corrosion.
- Oil & Gas Industry: Ideal for valve stems, connectors, and pressure-handling components where strength and corrosion resistance are critical.
- Aerospace Applications: Utilized in landing gear components, bushings, and structural parts that require high strength and fatigue resistance.
- Power Generation: Suitable for turbine components, bearings, and wear plates because of its superior durability and resistance to erosion.
- Chemical Processing: Used in pumps, heat exchangers, and piping systems exposed to aggressive chemicals.
- Heavy Engineering: Preferred for gears, worm wheels, and industrial machinery parts that demand high load-bearing capacity.
- Instrumentation Fittings: Reliable for precision components where dimensional stability and long service life are essential.
- Forged Components: Commonly manufactured into flanges, elbows, tees, rings, and circles for critical industrial assemblies.
AMS 4640 Nickel Aluminium Bronze Rods Stockist in India, AMS 4640 Nickel Aluminium Bronze Flanges Stockist, UNS C63000 AMS 4640 Nickel Aluminium Bronze Forged Tee Manufacturer, AMS 4640 Nickel Aluminium Bronze Fittings Manufacturer, AMS 4640 Nickel Aluminium Bronze Forged Ring Exporter, and AMS 4640 Nickel Aluminium Bronze Forged Circle Manufacturer in India.
| Product Form | Size Range |
|---|---|
| AMS 4640 Nickel Aluminium Bronze Bars & Rods | Round, Square & Hex from Ø6 mm to Ø300 mm |
| AMS 4640 Nickel Aluminium Bronze Tube Sheets | Thickness: 10 mm to 300 mm Diameter: Up to 3000 mm |
| AMS 4640 Nickel Aluminium Bronze Instrumentation Fittings | 1/8” to 2” (As per drawings & applicable standards) |
| AMS 4640 Nickel Aluminium Bronze Flanges | ½” to 24” (Class 150 to 2500 / PN 10 to PN 420) |
| AMS 4640 Nickel Aluminium Bronze Forged Elbows & Tees | ½” to 24” (Seamless / Forged Construction) |
| AMS 4640 Nickel Aluminium Bronze Forged Rings | Outside Diameter up to 2500 mm Thickness up to 300 mm |
| AMS 4640 Nickel Aluminium Bronze Forged Circles | Diameter up to 2500 mm Thickness up to 300 mm |
| Custom sizes, tolerances, and finishes are available as per customer drawings and specifications. | |
| UNS Number | C63000 / AMS 4640 |
| Standards | ASTM B150, ASTM B124 |
| British Standard | BS 2874 CA104 (Nickel Aluminium Bronze – equivalent) |
| European Standard | EN 12163 / EN 12165 CW307G (Nickel Aluminium Bronze – equivalent) |
| German Standard | DIN EN 12163 CuAl10Ni5Fe4 |
| ISO (Chemical Designation) | CuAl10Ni5Fe4 |
| Common Names | Nickel Aluminium Bronze, NAB, CuAl10Ni5Fe4, Marine Bronze |
| Element | Cu | Sn | Zn | Fe | Ni | Al | Mn | Si |
|---|---|---|---|---|---|---|---|---|
| Min (%) | Remainder | — | — | 2.0 | 4.0 | 9.0 | — | — |
| Max (%) | Remainder | 0.20 | 0.30 | 4.0 | 5.5 | 11.0 | 1.5 | 0.25 |
| Product Form / Section | Tensile Strength (Min) | Yield Strength (Min) | Elongation (Min) |
|---|---|---|---|
| Rod – up to 25 mm | 760 MPa (110 ksi) | 470 MPa (68 ksi) | 10 % |
| Rod – 25 to 50 mm | 760 MPa (110 ksi) | 415 MPa (60 ksi) | 10 % |
| Rod – 50 to 80 mm | 725 MPa (105 ksi) | 380 MPa (55 ksi) | 10 % |
| Rod – 80 to 125 mm | 690 MPa (100 ksi) | 345 MPa (50 ksi) | 10 % |
| Rod – above 125 mm | 620 MPa (90 ksi) | 275 MPa (40 ksi) | 15 % |
| Forgings | 620 MPa (90 ksi) | 295 MPa (42.5 ksi) | 10 % |
| Density | 7.58 g/cm³ |
| Specific Gravity | 7.58 |
| Melting Range | 1060 – 1075 °C |
| Electrical Resistivity | 19.28 µΩ·cm at 20 °C |
| Electrical Conductivity | 7 % IACS (0.041 MS/cm) |
| Thermal Conductivity | 39.1 W/m·K at 20 °C |
| Coefficient of Thermal Expansion | 16.2 × 10⁻⁶ /°C (20 – 300 °C) |
| Specific Heat Capacity | 377.1 J/kg·K |
| Modulus of Elasticity (Tension) | 121,000 MPa |
| Modulus of Rigidity | 44,130 MPa |
| Category | Process / Property | Capability / Rating |
|---|---|---|
| Different General Capabilities | Hot Working | 75 – Very Good |
| Cold Working | 20 – Satisfactory | |
| Free Cutting | 40 – Moderate | |
| Corrosion Resistance | Excellent | |
| Welding and Brazing Capabilities | Brazing – Soft | Not Recommended |
| Brazing – Strong | Satisfactory | |
| Welding – Oxy-acetylene | Not Recommended | |
| Welding – Gas-shielded arc | Good | |
| Welding – Coated metal-arc | Good | |
| Welding – Carbon arc | Satisfactory | |
| Welding – Resistance | Good |
| Standard | Equivalent Specification |
|---|---|
| AMS | AMS 4640 |
| UNS | C63000 |
| ASTM | ASTM B150, ASTM B124, ASTM B171, ASTM B283 |
| ASME | ASME SB150, ASME SB124 |
| SAE | SAE J463 |
| Military Specification | QQ-C-465B |
| AMS 4640 Nickel Aluminium Bronze Male Connector | AMS 4640 Nickel Aluminium Bronze Male Connector |
| AMS 4640 Nickel Aluminium Bronze Bulk Head Male Connector | AMS 4640 Nickel Aluminium Bronze Male Elbow |
| AMS 4640 Nickel Aluminium Bronze 45 Deg Male Elbow | AMS 4640 Nickel Aluminium Bronze Male Branch Tee |
| AMS 4640 Nickel Aluminium Bronze Male Run Tee | AMS 4640 Nickel Aluminium Bronze Female Connector |
| AMS 4640 Nickel Aluminium Bronze Bulkhead Female Connector | AMS 4640 Nickel Aluminium Bronze Female Elbow |
| AMS 4640 Nickel Aluminium Bronze Female Run Tee | AMS 4640 Nickel Aluminium Bronze Female Branch Tee |
| AMS 4640 Nickel Aluminium Bronze Union | AMS 4640 Nickel Aluminium Bronze Reducer Union |
| AMS 4640 Nickel Aluminium Bronze Bulkhead Union | AMS 4640 Nickel Aluminium Bronze Union Elbow |
| AMS 4640 Nickel Aluminium Bronze Union Tee | AMS 4640 Nickel Aluminium Bronze Union Cross |
| AMS 4640 Nickel Aluminium Bronze Reducer | AMS 4640 Nickel Aluminium Bronze Bulkhead Reducer |
| AMS 4640 Nickel Aluminium Bronze Port Connector Tube Fittings | AMS 4640 Nickel Aluminium Bronze Male Adapter |
| AMS 4640 Nickel Aluminium Bronze Female Adapter | AMS 4640 Nickel Aluminium Bronze Tube End Cap |
| AMS 4640 Nickel Aluminium Bronze Plug (Port Ends) (TP) | AMS 4640 Nickel Aluminium Bronze Tube Socket Weld Union |
| AMS 4640 Nickel Aluminium Bronze Male Pipe Weld Connector | AMS 4640 Nickel Aluminium Bronze Tube Socket Weld Elbow |
| AMS 4640 Nickel Aluminium Bronze Male Pipe Weld Elbow | AMS 4640 Nickel Aluminium Bronze Back Ferrule |
| AMS 4640 Nickel Aluminium Bronze Front Ferrule |
| AMS 4640 Nickel Aluminum Bronze Threaded Hex Bushing |
| AMS 4640 Nickel Aluminum Bronze Threaded Union |
| AMS 4640 Nickel Aluminum Bronze Threaded Tee |
| AMS 4640 Nickel Aluminum Bronze Threaded 90 Degree Elbow |
| AMS 4640 Nickel Aluminum Bronze Threaded 90 Deg Street Elbow |
| AMS 4640 Nickel Aluminum Bronze Threaded Reducing Coupling |
| AMS 4640 Nickel Aluminum Bronze Threaded Coupling |
| AMS 4640 Nickel Aluminum Bronze Threaded Square Head Cored Plug |
| AMS 4640 Nickel Aluminum Bronze Threaded Reducing Tee |
| AMS 4640 Nickel Aluminum Bronze Threaded Reducing Tee |
| AMS 4640 Nickel Aluminum Bronze Threaded 45 Degree Elbow |
| AMS 4640 Nickel Aluminum Bronze Threaded 45 Deg Street Elbow |
| AMS 4640 Nickel Aluminum Bronze Threaded 90 Deg Reducing Elbow |
| AMS 4640 Nickel Aluminum Bronze Threaded Bull Head Tee |
| AMS 4640 Nickel Aluminum Bronze Threaded Cross |















Exporting AMS 4640 Nickel Aluminum Bronze Worldwide
AMS 4640 Nickel Aluminum Bronze Supplier Across India
We supply AMS 4640 Nickel Aluminum Bronze to cities including Mumbai, Delhi, Kolkata, Chennai, Bengaluru, Hyderabad, Ahmedabad, Pune, Surat, Jaipur, Kanpur, Lucknow, Nagpur, Ghaziabad, Indore, Coimbatore, Kochi, Patna, Kozhikode, Bhopal, Thrissur, Vadodara, Agra, Malappuram, Thiruvananthapuram, Kannur, Ludhiana, Nashik, Vijayawada, Madurai, Varanasi, Meerut, Faridabad, Rajkot, Jamshedpur, Srinagar, Jabalpur, Asansol, Vasai-Virar City, Allahabad, Dhanbad, Aurangabad, Amritsar, Jodhpur, Ranchi, Raipur, Kollam, Gwalior, Durg-Bhilainagar, Chandigarh, and Tiruchirappalli.
