Monel 502 Alloy | Nickel-Copper High-Strength Alloy Manufacturer & Supplier
Supplied by Huaxiao-Alloy – Your Trusted Global Alloy Partner
1. Product Overview
Monel 502 Alloy is a high-strength nickel-copper alloy designed for applications demanding exceptional corrosion resistance, high mechanical strength, and excellent performance at elevated temperatures. As part of the Monel family, Monel 502 combines the corrosion resistance of traditional Monel 400 with enhanced tensile strength, making it ideal for marine, chemical, oil & gas, and high-temperature industrial applications.
At Huaxiao-Alloy, we supply Monel 502 in all common forms — including pipes, tubes, sheets, plates, bars, wires, and custom fittings — fully compliant with ASTM B164 / B865, UNS N05502, and DIN equivalents. Our alloy products are factory-processed for long-term durability, tight dimensional tolerances, and international export-ready quality.
This alloy is particularly valued in heat exchangers, turbine components, condensers, seawater pumps, and piping systems where a combination of corrosion resistance and high strength is required.
2. Chemical Composition (Typical %)
| Element | Nickel (Ni) | Copper (Cu) | Iron (Fe) | Manganese (Mn) | Carbon (C) | Silicon (Si) | Sulfur (S) |
|---|---|---|---|---|---|---|---|
| Content (%) | 63 min | 28–34 | 2.5 max | 2.0 max | 0.15 max | 0.5 max | 0.02 max |
Composition Notes:
High nickel content provides superior corrosion resistance.
Copper ensures resistance to seawater and non-oxidizing acids.
Minor elements enhance mechanical strength, machinability, and thermal stability.
3. Mechanical Properties
| Property | Condition | Typical Value |
|---|---|---|
| Tensile Strength | Annealed | 620–780 MPa (90–113 ksi) |
| Yield Strength (0.2% offset) | Annealed | 310–450 MPa (45–65 ksi) |
| Elongation | 50 mm | 30–40% |
| Hardness | Brinell | 150–180 HB |
| Density | — | 8.83 g/cm³ |
| Melting Point | — | 1300–1350°C |
Monel 502 offers higher strength than Monel 400 and 403 while maintaining corrosion resistance, making it suitable for structural and high-pressure marine systems.
4. Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | N05502 |
| ASTM / ASME | B164, B865 |
| DIN | 2.4370 |
| ISO | NiCu30Fe |
| JIS | NW5502 |
| BS | NA 13 |
5. Key Features & Benefits
High Mechanical Strength – Ideal for high-pressure and high-stress applications.
Outstanding Corrosion Resistance – Excellent against seawater, brine, and chemical solutions.
Heat and Oxidation Resistance – Performs well at elevated temperatures up to 500–600°C.
Good Fabrication & Weldability – Suitable for forming, machining, and welding with standard Monel filler metals.
Non-Magnetic & Stable – Maintains properties in cryogenic and high-temperature environments.
Versatile Applications – Suitable for marine, chemical, oil & gas, and high-temperature industrial systems.
Long Service Life – Resistant to stress corrosion cracking, cavitation, and erosion.
6. Available Product Forms
| Product Form | Specification Range | Remarks |
|---|---|---|
| Pipe & Tube | OD 6–219 mm, WT 0.5–12 mm | Seamless or welded, ASTM B865 |
| Sheet & Plate | 0.5–50 mm | Hot/cold rolled, pickled or polished |
| Bar & Rod | 3–200 mm | Round, square, hex |
| Wire | 0.1–10 mm | Coil or spool |
| Coil / Strip | 10–1200 mm width | Precision rolled finish |
| Fittings & Flanges | Custom sizes | Forged or machined |
All products are export-ready, supplied with mill certificates and protective packaging.
7. Typical Applications
Marine & Offshore:
Pump shafts and impellers
Heat exchanger and condenser tubing
Seawater piping and valves
Chemical Processing:
Reactors, tanks, and piping for acids and brines
Evaporators and chemical handling equipment
Oil & Gas:
Tubing, valves, and high-pressure fittings for offshore platforms
Pumps and heat-resistant components
High-Temperature Applications:
Turbine components
Furnace and boiler parts
Heat exchangers operating in aggressive environments
8. Corrosion & Heat Resistance
Monel 502 exhibits superior resistance to:
Seawater and chloride-rich environments
Non-oxidizing acids (HCl, HF, H2SO4)
Alkaline and brine solutions
Stress corrosion cracking and erosion
Oxidation at elevated temperatures
It outperforms stainless steels in aggressive marine and industrial environments while providing enhanced strength at high temperatures.
9. Fabrication & Welding Guidelines
Forming: Cold or hot forming possible; intermediate annealing recommended for heavy deformation.
Machining: Work-hardening alloy; low cutting speeds and sharp tools required.
Welding:
Recommended filler: Monel 60 or ENiCu-7
TIG, MIG, or SMAW welding suitable
No preheating needed; post-weld annealing optional for maximum corrosion resistance
Heat Treatment: Annealing at 870°C (1600°F) followed by air cooling restores ductility and corrosion resistance.
10. Quality Assurance & Certifications
Huaxiao-Alloy ensures Monel 502 products meet international standards:
✅ ISO 9001:2015 certified production
✅ ASTM B164/B865 and UNS N05502 compliance
✅ PMI, hardness, tensile, and hydrostatic testing
✅ EN 10204 3.1 / 3.2 mill certificates
✅ Export-grade packaging
Our factories in Wuxi, Foshan, and Shanghai Baoshan maintain tight tolerances, corrosion-free finishes, and global shipping readiness.
11. Why Choose Huaxiao-Alloy
Comprehensive Alloy Solutions: Monel, Inconel, Hastelloy, and stainless steel.
Factory-Direct Pricing: Cost-effective and export-ready.
Technical Expertise: Material selection, fabrication, and welding guidance.
Fast Global Delivery: Europe, Middle East, Southeast Asia, South America.
International Certifications: ISO, SGS, BV, TUV, ABS, DNV approvals.
Huaxiao-Alloy is a trusted global supplier of Monel 502, providing high-quality alloys for demanding industrial applications.
A: High-strength, corrosion-resistant applications in marine, chemical, oil & gas, and high-temperature industries.
A: Monel 502 offers higher strength and better performance at elevated temperatures while maintaining corrosion resistance.
A: Yes. Standard Monel filler metals and TIG/MIG/SMAW welding are recommended.
A: ASTM B164/B865, UNS N05502, DIN 2.4370, ASME SB164/SB865.
A: No, it is non-magnetic under all operating conditions.
A: Approximately 500–600°C depending on service conditions.
A: Pickled, polished, bright-annealed, or brushed.
A: Yes, Huaxiao-Alloy offers cut-to-size, machined, or custom fittings.
A: Superior chloride and seawater resistance, with higher strength at elevated temperatures.
A: Email [email protected] or submit your specification form online.
Monel 502 Alloy | Nickel-Copper High-Strength Alloy Manufacturer & Supplier
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