Monel Welded Pipes Manufacturer & Supplier in India
Monel Welded Pipes are premium nickel-copper alloy welded pipes that are used due to their excellent corrosion resistance towards seawater, acids, alkalis and severe industrial media. Being a reliable supplier of ASTM B725 Welded Monel Pipe in India, we offer supreme quality welded pipes that are made from certified raw materials and tested in adherence to worldwide quality standards. Our range comprises of ASTM B725 UNS N04400 welded pipe, large diameter welded pipe, custom length tubes and fabricate pipe assemblies which are fit for use in Marine, chemical process industry, Offshore and also used in power generation and Oil & Gas industries. We possess an abundant stock and have been providing corrosion resistant nickel alloys to global clients worldwide for years; thus ensure performance, size precision and on-time delivery.
What are Monel Welded Pipes?
Monel Welded pipes, a nickel-copper alloy pipe produced by rolling the Monel alloy plates or strips, then using superior welding technology to weld the seam. The Monel Welded pipes have high resistance to sea water, hydrofluoric acid, sulfuric acid, alkalis, and high temperature. ASTM B725 Monel 400 Welded Pipes have extensive applications on marine, chemical, oil & gas and heat exchanger industries
ASTM B725 UNS N04400 Welded Pipe – Product Overview
The welded pipes produced from nickel and nickel alloys is covered under ASTM B725 specification. One of the most utilized nickel alloy is Monel Alloy 400 (UNS N04400) because of its great mechanical strength and excellent corrosion resistance qualities.
We, the Monel Alloy 400 UNS N04400 Pipe & Tube supplier have designed this welded pipes according to various international specifications that offer highest durability and longer service life.
Key Features
- Excellent resistance to seawater and brine
- High mechanical strength across a wide temperature range
- Superior resistance to hydrofluoric acid
- Good weldability and fabrication characteristics
- Outstanding resistance to chloride stress corrosion cracking
- Long service life in aggressive industrial environments
- Suitable for high-pressure and high-temperature applications
Types of Monel Welded Pipes We Supply
We offer a comprehensive range of Monel welded piping products to meet varying industrial requirements.
Monel ERW Pipes
Manufactured using electric resistance welding technology, these pipes provide excellent dimensional accuracy and cost-effective performance. We are recognized among reliable Monel ERW Pipe suppliers serving domestic and international industries.
ASTM B725 Welded Pipes
Manufactured in accordance with ASTM standards and suitable for high-performance industrial applications.
Large Diameter Monel Welded Pipe
Available in custom diameters and wall thicknesses for offshore, marine, petrochemical, and infrastructure projects requiring high flow capacities.
Monel Welded Tubes
Precision-engineered tubes for condensers, heat exchangers, instrumentation, and process piping systems.
Custom Fabricated Monel Pipes
Available in cut lengths, polished finishes, beveled ends, and project-specific dimensions.
ERW (Electric Resistance Welded) Monel Pipe
EFW (Electric Fusion Welded) Monel Pipe
Spiral Weld Monel Pipe
SAW (Submerged Arc Welded) Monel Pipe
Benefits of Using Welded Nickel Alloy Pipe
Industrial facilities prefer welded nickel alloy pipe because of its combination of durability, strength, and corrosion resistance.
Excellent Corrosion Resistance
Monel alloys perform exceptionally well in seawater, acidic environments, and chemical processing systems.
Superior Mechanical Strength
The alloy maintains structural integrity under high pressure and elevated temperatures.
Long Service Life
Reduced maintenance requirements help lower operational costs and increase equipment reliability.
Easy Fabrication
Monel welded pipes can be fabricated, welded, and machined efficiently, making them suitable for custom engineering applications.
Cost-Effective Alternative
For many applications, welded pipes offer a more economical solution compared to seamless alternatives while maintaining comparable performance.
Applications of Monel Welded Pipes
Because of their excellent corrosion resistance and mechanical properties, Monel welded pipes are used in a wide range of industries.
Marine Industry
Monel’s exceptional seawater resistance makes it ideal for:
- Shipbuilding
- Marine piping systems
- Seawater desalination plants
- Offshore platforms
Oil & Gas Industry
Widely used for:
- Offshore processing facilities
- Subsea piping systems
- Refinery process lines
- Sour gas environments
Chemical Processing
Suitable for:
- Acid handling systems
- Chemical reactors
- Storage tanks
- Process piping networks
Power Generation
Used in:
- Heat exchangers
- Condensers
- Boiler systems
- Cooling water circuits
Aerospace Industry
Applied in:
- Fuel systems
- Hydraulic lines
- High-performance engineering systems
Schedule Chart for Monel Welded Pipes
| Schedule | Wall Thickness (mm) | Wall Thickness (inches) |
| 5S | 1.65 | 0.065 |
| 10S | 2.11 | 0.083 |
| 40S | 3.05 | 0.120 |
| 80S | 5.49 | 0.216 |
| 160 | 7.11 | 0.280 |
| XXH | 9.53 | 0.375 |
Mechanical Properties Chart for Monel Pipes
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| Monel 400 | 550-750 | 240-520 | 35 min | 150 max |
| Monel K-500 | 860-1100 | 485-620 | 20 min | 270 max |
Specifications Chart for Monel Pipes
| Specification | Standard |
| ASTM B165 | Seamless Monel Pipes |
| ASTM B725 | Welded Monel Pipes (ERW, EFW, SAW) |
| ASTM B730 | Welded Monel Spiral Welded Pipe |
Chemical Composition Chart for Monel Pipes
| Element | Monel 400 Composition (%) | Monel K-500 Composition (%) |
| Nickel (Ni) | 63.0-70.0 | 63.0 min |
| Copper (Cu) | Remainder | 27.0-33.0 |
| Iron (Fe) | 1.0-2.5 | 2.0 max |
| Manganese (Mn) | 1.0 max | 1.5 max |
| Carbon (C) | 0.3 max | 0.25 max |
| Silicon (Si) | 0.5 max | 0.5 max |
| Sulfur (S) | 0.024 max | 0.010 max |
Manufacturing Process of Monel Welded Pipes
Monel Welded Pipes are fabricated using finest quality Monel 400 (UNS N04400) coils or sheets. The raw material is then shaped into a tube and expertly welded using high technology welding processes ensuring perfect uniform welding. The pipes are finally subjected to heat treatment, sizing and finishing as per the required dimensions and mechanical properties and are then subject to a wide range of quality testing and checks before being marked, packed and shipped.
Process Flow
Raw Material Selection → Forming → Welding → Heat Treatment → Finishing → Testing & Inspection → Packaging & Dispatch
Monel pipe grades
Frequently Asked Questions (AEO Optimized)
Is ASTM B725 UNS N04400 welded pipe suitable for seawater applications?
Yes. Monel 400 offers outstanding resistance to seawater corrosion, making it one of the most preferred materials for marine applications.
What is the difference between Monel welded pipe and Monel seamless pipe?
Welded pipes are produced by welding rolled plates or strips, while seamless pipes are manufactured without a welded seam. Welded pipes generally provide a more economical solution for many industrial applications.
What industries commonly use Monel welded pipes?
Marine, offshore, chemical processing, oil & gas, power generation, and aerospace industries commonly use Monel welded pipes.
Can large diameter Monel welded pipe be supplied?
Yes. Large diameter Monel welded pipes are available in customized dimensions according to project specifications.
Are Monel ERW pipes corrosion resistant?
Yes. Monel ERW pipes offer excellent resistance to seawater, acids, alkalis, and various corrosive chemicals
Request a Quote for Monel Welded Pipes
Searching for a trustworthy Monel Alloy 400 UNS N04400 Pipe & Tube Supplier? We have large diameters of Monel welded pipe, custom nickel alloy piping systems for all industries. We also carry ASTM B725 UNS N04400 welded pipe, custom designed for all applications.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality monel welded pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
