Monel Pipes and Tubes
The use of Monel pipes and tubes is chosen in cases when a project requires a higher level of durability and corrosion resistance in comparison with the standard nickel alloys or stainless steel. The engineers working in the marine, oil, gas, and chemical processing settings have known that Monel 400 pipes and tubes have performed well in seawater systems, heat exchangers, or corrosive chemical lines, whereas Monel K500 pipes offer higher mechanical strength needed in rotating machinery, pump shafts, and pressure-driven systems.
Being a trusted Monel pipe supplier and manufacturer, Stellar Alloys Steel Pipes and Tubes is guided by a technical and quality-focused business principle in dealing with high-nickel alloys. We provide Monel 400 pipe, Monel K500 pipe, Monel 400 tube, and Monel K500 tube in seamless and welded versions manufactured to ASTM B165, ASTM B725, and similar specifications. Material test reports and dimensional checks and optional third-party inspection support each batch and guarantee consistent performance in the contradictory, corrosive, and changing service conditions.
Our documentation is clear and makes procurement teams and OEM buyers willing to work with us based on the consistency of delivery schedules and advice on how to size and select the grade. As to whether it is seawater exposure, chemical media, or high-pressure duty, our technical staff assists in determining the appropriate Monel seamless pipe or Monel welded pipe configuration to provide long-time operational integrity.
Table of Contents
- Monel Alloys 400 vs K500: Key Differences at a Glance (Comparison Table)
- Technical Specifications of Monel 400 and Monel K500 Pipes and Tubes
- Additional Types of Monel 400 and Monel K500 Pipes and Tubes
- Equivalent Grades for Monel 400 and Monel K500 Pipes and Tubes
- Chemical Composition of Monel 400 and Monel K500 Pipes and Tubes
- Mechanical Properties of Monel 400 and Monel K500 Pipes and Tubes
- Key Physical Characteristics of Monel 400 Pipes and Tubes
- Core Physical Attributes of Monel K500 Pipes and Tubes
- Why Choose Stellar Alloys Steel Pipes and Tubes as Your Trusted Monel Pipe Manufacturer and Supplier
- Latest Price List of Monel 400 and Monel K500 Pipes and Tubes
- Frequently Asked Questions About Monel 400 and K500 Pipes and Tubes
Monel 400 Monel K500 Pipes and Tubes | UNS N04400 UNS N05500 Seamless and Welded Pipe Supplier, ASTM B165 B725 Monel Alloy Tubing Exporter in India
Monel 400 and Monel K 500 pipes and tubes find application in the situations where the components are supposed to be strong and resistant to corrosion in highly stressful environments with variable temperatures, as well as with exposure to aggressive media. Stellar Alloys Steel Pipes and Tubes, as a manufacturer of Monel pipes and Monel tubes a supplier and stockist, offers the materials that are appropriately applicable in demanding use in marine engineering, chemical plants, refineries, offshore platforms, and heat exchanger systems. Monel 400 Pipes (UNS N04400) exhibit stability with rapidly flowing seawater, steam and neutral or mildly acidic solutions, and Monel K500 Pipes (UNS N05500) are more mechanically strong and hard enough to be a dependable pump shaft, valve part and rotating apparatus.
We also have Monel seamless pipe, Monel welded pipe, Alloy 400 tubing and K500 tubing, which are all produced under ASTM B165 and ASTM B725. These standards help to maintain dimensional accuracy in every individual pipe, thereby providing both high-temperature and low-temperature service with a consistent performance. Monel alloys maintain strength at temperatures below zero degrees and do not crack when exposed to stressful conditions in the environment of high pressure; that is why they are widely used in the marine sphere and corrosive processing lines.
Material test reports and complete traceability are provided with every batch to aid in quality assurance needs. Being a reliable stockist in monel pipes and monel tubes, we assist procurement teams in choosing the right grade or size and schedule to suit the specifications of the project. Do you need well-established corrosion resistance, temperature stability or increased tensile strength? Our technical experts can help you to determine the best Monel 400 or Monel K500 product that will be used in the long run in industry.
Material Grades of Monel Pipes and Monel Tubes
Monel Alloys 400 vs K500: Key Differences at a Glance (Comparison Table)
Despite the fact that the Monel 400 and Monel K500 share an excellent resistance to reducing media, sea and stress-corrosion cracking, their mechanical properties and subsequent applications are polar opposites of each other. Your choice of material, high standard of strength and the anti-galling will be the key considerations; Monel K500 will be superior in these aspects due to the ability to age harden. The essence of the differences between these two workhorse nickel-copper alloys, used in piping and tubing, is presented in the following table.
Feature | Monel 400 (UNS N04400) | Monel K500 (UNS N05500) |
Alloy Type | Solid Solution (Single Phase) | Age-Hardenable (Precipitation-Hardened) |
Key Additives | Primarily Nickel (63% min) and Copper (28-34%) | Ni, Cu, plus Aluminum & Titanium |
Yield Strength (Typical) | Moderate (~280 MPa) | High (~790 MPa) |
Hardness | Relatively Soft (More Ductile) | Very Hard (High Wear Resistance) |
Weldability | Excellent | Good, but requires post-weld heat treatment |
Key Usage | Heat Exchangers, Process Piping, Valves, Chemical Storage | Pump Shafts, Impellers, Fasteners, Springs, Oil Well Tools |
Technical Specifications of Monel 400 and Monel K500 Pipes and Tubes
Our range of monel pipes and monel tubes is manufactured to meet stringent international standards, ensuring excellent strength, corrosion resistance, and reliability in marine, chemical, and high-performance industrial applications.
Specification | Details |
Standards – Seamless Pipes & Tubes | ASTM B165, B163 ASME SB165, SB163 |
Standards – Welded Pipes & Tubes | ASTM B725 ASME SB725, SB730 |
Pipe Size | Seamless: ½″ to 10″ Welded: 1″ to 48″ |
Tube Size | 4 mm to 219 mm OD Wall Thickness: 0.5 mm to 20 mm |
Available Schedules | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH120, SCH140, SCH160, XXS |
Manufacturing Types | Seamless ERW Welded Fabricated Pipes |
Available Forms | Round Pipes/Tubes Square Pipes/Tubes Rectangular Pipes/Tubes Coiled Tubes U-Bend Tubes Pancake Coils Hydraulic Tubes |
Length Options | Single Random Double Random Custom Cut Length |
End Finishes | Plain End Beveled End Threaded |
End Protection | Plastic Caps Protective Covers |
Inspection & Test Reports | MTC as per EN 10204 3.1 Chemical & Mechanical Test Reports PMI Test Report Visual Inspection Report Third-Party Inspection (TPI) NABL Lab Reports NDT Reports (RT, UT, PT, MT) |
Packing | Wooden Boxes Plastic Bags Steel Strips Bundled Export-Safe Packing |
Specials | Custom sizes, wall thicknesses and specifications available on request |
Additional Types of Monel 400 and Monel K500 Pipes and Tubes
MONEL 400/K500 SEAMLESS PIPES
MONEL 400/K500 SEAMLESS TUBES
MONEL 400/K500 WELDED PIPES
MONEL 400/K500 WELDED TUBES
MONEL ALLOY ERW PIPES
400/K500 MONEL ERW TUBES
Equivalent Grades for Monel 400 and Monel K500 Pipes and Tubes
The following international equivalents help in identifying compatible material standards for monel pipes and monel tubes, ensuring easy substitution and compliance across global engineering specifications.
| STANDARD | UNS | WNR. | EN | JIS | GOST | AFNOR | BS |
| Monel 400 | N04400 | 2.4360 | NiCu30Fe | NW 4400 | МНЖМц 28-2,5-1,5 | NU-30M | NA 13 |
| Monel K500 | N05500 | 2.4375 | – | – | – | – | – |
Chemical Composition of Monel 400 and Monel K500 Pipes and Tubes
These alloys are primarily nickel-copper based, giving monel pipes and monel tubes exceptional corrosion resistance and mechanical strength in harsh environments.
| Grade | Ni | Fe | C | Mn | Si | Cu | Al | Ti | S |
| K500 | 63.0 min | 05 – 2 | 0.25 max | 1.5 max | 0.5 max | 27.0 – 33.0 | 2.3 – 3.15 | 0.35 – 0.85 | 0.010 max |
| 400 | 63.0- 70.00 max | 2.50 max | 0.3 max | 2.00 max | 0.50 max | Remainder | – | – | 0.024 max |
Mechanical Properties of Monel 400 and Monel K500 Pipes and Tubes
The excellent tensile strength and toughness of these alloys make monel pipes and monel tubes ideal for marine, chemical, and high-pressure applications.
| Grade | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness (HRb) |
| 400 | 75 to 90 | 25 to 50 | 60 to 35 | 60 to 80 |
| K500 | Psi – 1,60,000 , MPa – 1100 | Psi – 1,15,000 , MPa – 790 | 20 % | – |
Key Physical Characteristics of Monel 400 Pipes and Tubes
Monel 400 offers excellent thermal conductivity and resistance to seawater corrosion, making it widely used in heat exchangers and marine service.
| Property | Value |
| Density @ Room Temperature | 0.318 lb/in3 |
| Elastic Modulus @ 70°F (Tension) | 26.0 × 106 psi |
| Specific Heat @ 70°F | 0.102 Btu/lb/°F |
| Melting Point | 2370°F to 2460°F |
| Thermal Conductivity @ 70°F | 151 Btu·in/h/ft2/°F |
| Electrical Resistivity @ 70°F | 0.511 µΩ·m |
Core Physical Attributes of Monel K500 Pipes and Tubes
Monel K500 combines corrosion resistance with added strength from age-hardening, making these monel pipes and monel tubes suitable for shafts, fasteners, and high-load components.
| Property | Value |
| Density (Kg.m-1) | 84.3 |
| Magnetic Permeability (20°C) | <1.005 |
| Curie Temperature (°C) | -90 |
| Young’s Modulus (N/mm2) | 179 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 418 |
| Specific Electrical Resistance, 20°C (?O.m) | 0.62 |
| tdermal conductivity,20°C (W.m-1.°K-1) | 17.5 |
| Mean coefficient of tdermal expansion, 20-100°C (°K-1) | 13.4 x 10-6 |
Monel 400 Pipe Dimensions Schedule and Wall Thickness
NPS (Nominal Size) | Outside Diameter (in.) | Sch 10S | Sch 40S / STD | Sch 80S / E.H. | Sch 160 |
1/8″ | 0.405 | 0.049 | 0.068 | 0.095 | – |
1/4″ | 0.540 | 0.065 | 0.088 | 0.119 | – |
3/8″ | 0.675 | 0.065 | 0.091 | 0.126 | – |
1/2″ | 0.840 | 0.083 | 0.109 | 0.147 | 0.187 |
3/4″ | 1.050 | 0.083 | 0.113 | 0.154 | 0.218 |
1″ | 1.315 | 0.109 | 0.133 | 0.179 | 0.250 |
1¼” | 1.660 | 0.109 | 0.140 | 0.191 | 0.250 |
1½” | 1.900 | 0.109 | 0.145 | 0.200 | 0.281 |
2″ | 2.375 | 0.109 | 0.154 | 0.218 | 0.343 |
2½” | 2.875 | 0.120 | 0.203 | 0.276 | 0.375 |
3″ | 3.500 | 0.120 | 0.216 | 0.300 | 0.437 |
4″ | 4.500 | 0.120 | 0.237 | 0.337 | 0.531 |
5″ | 5.563 | 0.134 | 0.258 | 0.375 | 0.625 |
6″ | 6.625 | 0.134 | 0.280 | 0.432 | 0.718 |
8″ | 8.625 | 0.148 | 0.322 | 0.500 | 0.906 |
10″ | 10.750 | 0.165 | 0.365 | 0.593 | 1.125 |
12″ | 12.750 | 0.180 | 0.406 | 0.687 | 1.312 |
14″ | 14.000 | 0.188–0.250 | 0.437 | 0.750 | 1.406 |
16″ | 16.000 | 0.188–0.250 | 0.500 | 0.843 | 1.593 |
18″ | 18.000 | 0.188–0.250 | 0.562 | 0.937 | 1.781 |
Pressure Capability of Monel 400 (UNS N04400) Pipes
Pipe OD (in.) | 0.028″ | 0.035″ | 0.049″ | 0.065″ | 0.083″ | 0.095″ | 0.109″ | 0.120″ |
1/8″ | 7900 | 10100 | – | – | – | – | – | – |
1/4″ | 3700 | 4800 | 7000 | 9500 | – | – | – | – |
5/16″ | – | 3700 | 5400 | 7300 | – | – | – | – |
3/8″ | – | 3100 | 4400 | 6100 | – | – | – | – |
1/2″ | – | 2300 | 3200 | 4400 | – | – | – | – |
3/4″ | – | – | 2200 | 3000 | 4000 | 4600 | – | – |
1″ | – | – | – | 2200 | 2900 | 3400 | 3900 | 4300 |
ASTM B165 Monel 400 Pipe – Standard Supply Range
Product Type | Outside Diameter Range | Wall Thickness | Standard Length |
NB Size Pipes (Stock) | 1/8″ to 8″ | SCH 5 to SCH 160 | Up to 6 m |
Seamless Pipes (Custom) | 5 mm to 203.2 mm | As specified | Up to 6 m |
Welded Pipes | 5 mm to 1219.2 mm | 1.0 mm to 15 mm | Up to 6 m |
ASTM B725 Monel 400 Welded Pipe – Available IPS Sizes & Schedules
IPS Size | OD (in.) | Available Schedules |
1/8″ | 0.405 | SCH 40, 80 |
1/4″ | 0.540 | SCH 10, 40, 80 |
3/8″ | 0.675 | SCH 10, 40, 80 |
1/2″ | 0.840 | SCH 5, 10, 40, 80, 160, XXH |
3/4″ | 1.050 | SCH 10, 40, 80, 160, XXH |
1″ | 1.315 | SCH 5, 10, 40, 80, 160, XXH |
1¼” | 1.660 | SCH 10, 40, 80, 160, XXH |
1½” | 1.900 | SCH 10, 40, 80, 160, XXH |
2″ | 2.375 | SCH 10, 40, 80, 160, XXH |
2½” | 2.875 | SCH 10, 40, 80, 160, XXH |
3″ | 3.500 | SCH 10, 40, 80, 160, XXH |
3½” | 4.000 | SCH 10, 40, 80, 160, XXH |
4″ | 4.500 | SCH 10, 40, 80, 160, XXH |
5″ | 5.563 | SCH 10, 40, 80, 160, XXH |
6″ | 6.625 | SCH 5, 10, 40, 80, 120, 160, XXH |
8″ | 8.625 | SCH 5, 10, 40, 80, 120, 160, XXH |
10″ | 10.750 | SCH 10, 20, 40, 80 |
12″ | 12.750 | SCH 10, 20, 40, 80 |
14″ | 14.000 | SCH 10, SCH 40 |
16″ | 16.000 | SCH 10, SCH 40 |
18″ | 18.000 | SCH 40 |
Monel 400 Pipe Dimensions Schedule and Wall Thickness
NPS (Nominal Size) | Outside Diameter (in.) | Sch 10S | Sch 40S / STD | Sch 80S / E.H. | Sch 160 |
1/8″ | 0.405 | 0.049 | 0.068 | 0.095 | – |
1/4″ | 0.540 | 0.065 | 0.088 | 0.119 | – |
3/8″ | 0.675 | 0.065 | 0.091 | 0.126 | – |
1/2″ | 0.840 | 0.083 | 0.109 | 0.147 | 0.187 |
3/4″ | 1.050 | 0.083 | 0.113 | 0.154 | 0.218 |
1″ | 1.315 | 0.109 | 0.133 | 0.179 | 0.250 |
1¼” | 1.660 | 0.109 | 0.140 | 0.191 | 0.250 |
1½” | 1.900 | 0.109 | 0.145 | 0.200 | 0.281 |
2″ | 2.375 | 0.109 | 0.154 | 0.218 | 0.343 |
2½” | 2.875 | 0.120 | 0.203 | 0.276 | 0.375 |
3″ | 3.500 | 0.120 | 0.216 | 0.300 | 0.437 |
4″ | 4.500 | 0.120 | 0.237 | 0.337 | 0.531 |
5″ | 5.563 | 0.134 | 0.258 | 0.375 | 0.625 |
6″ | 6.625 | 0.134 | 0.280 | 0.432 | 0.718 |
8″ | 8.625 | 0.148 | 0.322 | 0.500 | 0.906 |
10″ | 10.750 | 0.165 | 0.365 | 0.593 | 1.125 |
12″ | 12.750 | 0.180 | 0.406 | 0.687 | 1.312 |
14″ | 14.000 | 0.188–0.250 | 0.437 | 0.750 | 1.406 |
16″ | 16.000 | 0.188–0.250 | 0.500 | 0.843 | 1.593 |
18″ | 18.000 | 0.188–0.250 | 0.562 | 0.937 | 1.781 |
Pressure Capability of Monel 400 (UNS N04400) Pipes
Pipe OD (in.) | 0.028″ | 0.035″ | 0.049″ | 0.065″ | 0.083″ | 0.095″ | 0.109″ | 0.120″ |
1/8″ | 7900 | 10100 | – | – | – | – | – | – |
1/4″ | 3700 | 4800 | 7000 | 9500 | – | – | – | – |
5/16″ | – | 3700 | 5400 | 7300 | – | – | – | – |
3/8″ | – | 3100 | 4400 | 6100 | – | – | – | – |
1/2″ | – | 2300 | 3200 | 4400 | – | – | – | – |
3/4″ | – | – | 2200 | 3000 | 4000 | 4600 | – | – |
1″ | – | – | – | 2200 | 2900 | 3400 | 3900 | 4300 |
ASTM B165 Monel 400 Pipe Standard Supply Range
Product Type | Outside Diameter Range | Wall Thickness | Standard Length |
NB Size Pipes (Stock) | 1/8″ to 8″ | SCH 5 to SCH 160 | Up to 6 m |
Seamless Pipes (Custom) | 5 mm to 203.2 mm | As specified | Up to 6 m |
Welded Pipes | 5 mm to 1219.2 mm | 1.0 mm to 15 mm | Up to 6 m |
ASTM B725 Monel 400 Welded Pipe Available IPS Sizes & Schedules
IPS Size | OD (in.) | Available Schedules |
1/8″ | 0.405 | SCH 40, 80 |
1/4″ | 0.540 | SCH 10, 40, 80 |
3/8″ | 0.675 | SCH 10, 40, 80 |
1/2″ | 0.840 | SCH 5, 10, 40, 80, 160, XXH |
3/4″ | 1.050 | SCH 10, 40, 80, 160, XXH |
1″ | 1.315 | SCH 5, 10, 40, 80, 160, XXH |
1¼” | 1.660 | SCH 10, 40, 80, 160, XXH |
1½” | 1.900 | SCH 10, 40, 80, 160, XXH |
2″ | 2.375 | SCH 10, 40, 80, 160, XXH |
2½” | 2.875 | SCH 10, 40, 80, 160, XXH |
3″ | 3.500 | SCH 10, 40, 80, 160, XXH |
3½” | 4.000 | SCH 10, 40, 80, 160, XXH |
4″ | 4.500 | SCH 10, 40, 80, 160, XXH |
5″ | 5.563 | SCH 10, 40, 80, 160, XXH |
6″ | 6.625 | SCH 5, 10, 40, 80, 120, 160, XXH |
8″ | 8.625 | SCH 5, 10, 40, 80, 120, 160, XXH |
10″ | 10.750 | SCH 10, 20, 40, 80 |
12″ | 12.750 | SCH 10, 20, 40, 80 |
14″ | 14.000 | SCH 10, SCH 40 |
16″ | 16.000 | SCH 10, SCH 40 |
18″ | 18.000 | SCH 40 |
Why Choose Stellar Alloys Steel Pipes and Tubes as Your Trusted Monel Pipe Manufacturer and Supplier?
Choosing the right Monel pipe manufacturer and supplier is critical to projects where consistent performance, corrosion resistance, and long-term reliability are non-negotiable. Stellar Alloys Steel Pipes and Tubes assists procurement teams and engineers with certified Monel 400 pipe and Monel K500 pipe to meet the demanding requirements of marine, chemical processing, oil and gas, and high-pressure industrial systems. Our staff is fully aware of the standards ASTM B165, ASTM B725, ASME SB730, and other relevant DIN specifications to ensure that every Monel seamless pipe and Monel welded pipe meets the correct dimensional and mechanical criteria.
Every lot is delivered with complete material test reports, heat number traceability, and optional third-party inspection for buyer confidence in the chemical composition, mechanical strength, and long-term reliability of the material supplied. Our customers depend on our capability in providing precise sizing, dependable inventory status, and technical clarity in choosing between Monel 400 and monel K500 for heat exchanger, pump, condenser, and pressure-bound piping system applications.
Engineers turn to Stellar Alloys Steel Pipes and Tubes because we couple application knowledge with practical sourcing support, helping to determine suitable grades, wall thicknesses and custom cut lengths. For applications where reliability and continuance of a project are crucial, our Monel 400 and Monel K500 pipes offer the quality, consistency, and performance required by critical operations.
Latest Price List of Monel 400 and Monel K500 Pipes and Tubes
Stellar Alloys Steel Pipes and Tubes manufactures Monel 400 Pipes, Monel K500 Pipes, Monel 400 Tubes, and Monel K500 Tubes in seamless and welded conditions, at reasonable prices to consumers countrywide in India. We charge certified material, tough testing and good delivery schedules. Operating purchasing departments that deal with the high-pressure pipe or alloy 400 and K500 related applications use us to provide the right size and current market rates.
ASTM B165 Monel 400 Seamless Pipes, ASTM B725 Welded Pipes, DIN 2.4360 ERW Tubing, and DIN 2.4375 Seamless Tubes, our team could provide you with the latest price list according to the number of units, the range of sizes and the project conditions. We are exporting quality material and offer full documentation, such as MTRs and optional third-party inspection.
To get the present prices of Monel pipe and tube, just submit your need and our technical sales people will get back to you with more information depending on your application.
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Frequently Asked Questions About Monel 400 and K500 Pipes and Tubes
Monel 400 and Monel K500 pipes are used in marine systems and heat exchangers, chemical processing lines, pump shafts, valve components, and high pressure fluid handling. The resistance to the seawater, acids and alkalis enables them to suit challenging service conditions.
Monel 400 and K500 tubes are available in different sizes, depending on the wall thickness, grade, seamless or welded tubing. The prices are different depending on the world price of nickel and quantity of projects. Buyers are able to demand the newest price list to have the right prices.
Monel K500 is indeed much stronger than most grades of stainless steel and provides good performance under mechanical stress. Monel 400 offers better corrosion resistance particularly in sea water and acidic conditions.
Monel is more costly as it has a high percentage of nickel and has an outstanding corrosion resistance and mechanical strength. Its hardiness lowers maintenance expense in the long run particularly in marine and chemical.
Monel 400 offers, in addition, excellent corrosion resistance compared to Monel K500 which is far stronger courtesy of age hardening. High load components are designed with K500 pipes and heat exchangers, condensers and marine piping with 400 pipes.
Yes, Monel 400 and K500 are some of the most suitable products in the seawater flow lines, pump systems, and offshore equipment. They have resistance to stress corrosion cracking and biofouling hence they are best suited in long term marine applications.
Yes, Monel 400 and Monel K500 are seamless, welded, ERW and fabricated. High pressure systems are fitted with seamless pipes whereas heat exchangers and other general engineering applications are fitted with welded tubes.