Monel Tubes Manufactured
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Midland Alloys Inc. is a trusted Indian manufacturer and global supplier of stainless steel pipes, offering a specialized range of Monel Tubes for critical industrial use. Available in grades like Monel 400 and Monel K500, these nickel-copper alloy tubes deliver strong performance in corrosive and high-stress environments. Monel 400 normally consists of approximately 63% nickel and 29% copper with traces of iron, manganese, and other elements, and possesses superior resistance to seawater, hydrofluoric acid and alkalis. Monel 400 improves mechanical properties by adding aluminium and titanium so that hardness and tensile strength can be increased through age-hardening. Monel tubes are a dependable option for energy, chemical and marine applications due to their unique mechanical strength, and outstanding resistance to corrosion. Depending on the grade and form, these tubes usually have tensile strengths between 480, and 620 MPa and elongations at least 35%. As an ISO certified company, we maintain a wide inventory of Monel Seamless Tubes, Welded Tubes and Capillary Tubing, supporting both standard and custom specifications. We make sure that our products meet all the required tests, such as mill test certificates, third-party inspection, and adherence to ASTM B163, B165, and B730.
Benefits of Monel Tubes
Monel Tubes offer consistent performance in the harsh environmental conditions. Their nickel-copper composition provides strength and durability where other alloys are defeated.
Monel tubes can withstand seawater corrosion, alkalis and hydrofluoric acid
- Maintains its mechanical strength over a broad temperature range.
- Excellent elongation and high tensile strength for structural integrity
- Long service life with reduced maintenance in aggressive environments
- Excellent stress corrosion cracking and pitting resistance
- Non-magnetic even at sub-zero temperatures (for Monel 400)
- Perfect for high-velocity and high-pressure fluid flow systems
- Cost-effective in highly corrosive industrial environments
Monel Tubes Specifications
Seamless Tube OD : 1/8 -12" NPS
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
ASTM B163 / ASME SB163, ASTM B730 / ASME SB730
Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Square, Rectangular, Round, etc.
Single Random, Double Random, Cut to length
Screwed, Beveled, Threaded, Plain
SCH XS, SCH 40, SCH 80S, SCH 5, SCH 80, SCH XXS, SCH 160, SCH10, All Schedules
No. 2B - Mill finish/ Matte finish, No.8 - Mirror finish, No. 4 - Brushed finish, Bright, Annealing, Polished, Mirror
Contact us today to discuss how Monel Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| Designation | C% | Co% | Cr% | Mo% | Ni% | V% | W% | Ai% | Cu% | Nb/Cb Ta% | Ti% | Fe% | Sonstige Autres-Other % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Monel 400 | 0.12 | – | – | – | 65.0 | – | – | – | 32.0 | – | – | 1.5 | Mn 1.0 |
| Monel K 500 | 0.13 | – | – | – | 64.0 | – | – | 2.8 | 30.0 | – | 0.6 | 1.0 | Mn 0.8 |
| STANDARD | UNS | EN | AFNOR | WERKSTOFF NR. Equivalents | GOST | JIS | BS |
|---|---|---|---|---|---|---|---|
| Alloy K500 | N05500 | – | – | 2.4375 | – | – | – |
| Alloy 400 | N04400 | NiCu30Fe | NU-30M | 2.4360 | МНЖМц 28-2,5-1,5 | NW 4400 | NA 13 |
Monel Tube Grades We Offer
Difference Between Monel Tubes and Inconel Tubes
Though Monel and Inconel both fall in the category of high-performance nickel alloys, they differ in their composition as well as application. Monel Tubes are nickel-copper alloys primarily designed for excellent corrosion resistance in marine and chemical settings, particularly where acids and alkalis are present. On the other hand, nickel-chromium-based Inconel tubes, like those composed of Inconel 600 or 625, are designed to withstand oxidation at high temperatures, which makes them perfect for use in heat-treatment, and aerospace settings. In mechanical terms, Inconel performs well in processes involving high heat and oxidation, while Monel provides superior corrosion resistance in seawater. Compared to Inconel, which maintains its strength even at high temperatures, Monel tubes are also more ductile and easy to work with at room temperature.
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing (Cold Rolling)
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Applications of Monel Tubes
Monel Tubes find applications in various industries, that require corrosion resistance, strength and reliability over the long term. In marine applications, these tubes are utilized in seawater systems, desalination facilities, and ship construction as it is resistant to saltwater. Monel tubing finds application in heat exchangers, reactors and pipelines dealing with corrosive chemicals in the chemical and petrochemical industries. In oil and gas, Monel is employed in instrumentation systems, risers, and offshore platforms. Power generation plants, especially nuclear and fossil fuel stations, use Monel for condenser tubing and boiler feed lines. Aerospace and defense sectors use Monel in fuel systems and critical engine components. Pharmaceutical and food industries benefit from Monel’s cleanability and corrosion resistance in process equipment.
Why Midland Alloys Inc. for Monel Tubes
Midland Alloys Inc. is a leading Indian manufacturer and international exporter of Monel tubes. We ensure that each tube is manufactured with strict adherence to ISO compliance and ASTM, ASME, and EN standards. Our precision process ensures accurate dimensions, mechanical integrity, and reliable performance in harsh conditions. Custom features include beveled ends, a distinct wall thickness, cut-to-length sizing, and surface treatments like electropolishing. Each tube is internally tested, certified by the mill, and third-party tested according to client requirements. We provide both bulk and project orders, ensuring timely delivery along with complete documentation support. Our staff helps with export compliance, packing and logistics for more than 30 nations. Tubes are manufactured as per ASTM/ASME standards, including ASTM B163, B165 and B730. Each delivery includes Mill Test Certificates (MTCs) verifying chemical and mechanical properties for full traceability.
FAQS
Yes. Applications where precise dimensional control is essential, such as hydraulic sensors, laboratory diagnostics and high-accuracy flow control, use monel capillary tubing.
ASTM B730 Monel Tubes have enhanced corrosion resistance and a smoother ID finish to reduce risk of contamination in ultra-pure and biotech processes.
Yes. Monel Instrument Tubing is used in offshore structures and subsea platforms due to its ability to resist pressure, brine and salt spray.
