Monel 400 Seamless Tubes Manufacturer and Supplier Thailand
Monel 400 Seamless Tubes is a high-strength, corrosion-resistant tubing made from a nickel-copper alloy known as Monel 400. It is produced without any welded joints, ensuring superior structural integrity and leak-proof performance. At Thaida, we manufacture and supply top-grade Monel 400 seamless tubes across Thailand, delivering custom sizes and specifications to meet diverse industrial requirements. These tubes offer excellent mechanical strength and thermal stability, making them ideal for demanding applications such as oil & gas processing, heat exchangers, and marine engineering. Manufactured with international standards, our Monel tubes are trusted for their durability and consistent performance, even at temperatures ranging from sub-zero to 550°C.
What Is Monel 400 Seamless Tubes?
Monel 400 Seamless Tubes are made from a solid-solution nickel-copper alloy with no welded joints. These tubes maintain high integrity, offering exceptional performance in various challenging environments. Alloy 400 seamless tubing, resists corrosion in seawater, hydrofluoric acid and other harsh chemicals. Manufactured in accordance with ASTM B163 standards and meets rigorous industry requirements. The seamless form ensures stability across a wide temperature range, maintaining its mechanical properties even in both cryogenic and high-temperature environments.
Key Features Monel 400 Seamless Tubing
High Strength and Durability
Monel 400 seamless tubes are highly resistant to stress and maintain strength even in challenging environments.
Corrosion Resistance
The alloy provides outstanding resistance to corrosion, particularly in seawater and harsh chemical environments.
Temperature Resistance
These tubes maintain their mechanical properties over a wide temperature range, ensuring reliable performance in both high and low temperatures.
Cost-Effectiveness
Monel 400 tubes provide excellent value for money by reducing the need for frequent replacements.
Seamless Construction
The seamless design eliminates welded joints, providing superior integrity, uniform strength and reduced risk of failure.
Easy Fabrication
These tubes are easily fabricated, allowing for custom shapes and sizes while maintaining structural integrity.
Compliance with Standards
Manufactured to meet ASTM B165 standards, ensuring quality and consistency across all products.
Why Choose Thaida For Monel Seamless 400 Tubes?
Competitive Pricing
Global Exports Expertise
Large Inventory & Fast Dispatch
Custom Sizes & Finishes
Industry Certifications & Compliance
Advanced Production Technology
After-Sales Support, Service- Technical Support
In-House Testing & Full Traceability
Specification Of Monel 400 Seamless Tubes
The following table includes specifications of monel 400 seamless tubes, covering size range, outer diameter, thickness, surface finish and schedule.
| Standards | ASME SB163 / ASTM B163 |
|---|---|
| Size | 3.35 mm OD To 101.6 mm OD |
| Wall Thickness | 0.020" – 0.220" (special wall thicknesses available) |
| Length | Single Random, Double Random, Standard & Cut Length Tubes |
| Form | Round |
| End | Plain End, Beveled End, Threaded Tubes |
UNS N04400 Monel 400 Seamless Tubes Chemical Composition Guide
The chemical composition table shows the elemental breakdown for Monel seamless tube, including carbon, chromium, and nickel.
| Grade | Ni | C | Al | Mn | Si | Fe | Cu | S |
|---|---|---|---|---|---|---|---|---|
| Monel 400 | 63.0 min | 0.3 max | 0.50 max | 2.0 max | 0.5 max | 1.0 – 2.5 | 28.0 – 34.0 | 0.02 max |
DIN 17750 Monel 400 Seamless Tubes – Full Mechanical Property Chart
This table highlights the mechanical properties of monel seamless tubes, including tensile and yield strength, elongation and hardness.
| Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|
| 8.8 g/cm³ | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 40 % |
400 Monel Seamless Tubes Equivalent Grades
The equivalent grades table provides a comparison of monel 400 seamless tubes with other materials and their corresponding properties.
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | JIS | GOST | BS | EN |
|---|---|---|---|---|---|---|---|
| Monel 400 | N04400 | 2.4360 | NU-30M | NW 4400 | МНЖМц 28-2,5-1,5 | NA 13 | NiCu30Fe |
Schedule List of UNS N04400 Tubing
The schedule list details the different schedules available for these tubing, including dimensions and wall thickness.
| 1/8" IPS(.405"O. D.) | 3 1/2" IPS( 4.000"O. D.) |
|---|---|
| SCH 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/4" IPS(.540"O. D.) | 4" IPS(4.500"O. D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 3/8" IPS(.675"O. D.) | 5" IPS( 5.563"O. D.) |
| SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
| 1/2" IPS(.840"O. D.) | 6" IPS(6.625"O. D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 3/4" IPS(1.050"O. D.) | 8 ” IPS(8.625"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
| 1" IPS:(1.315′O. D.) | 10" IPS(10.750"O. D.) |
| SCH 5, 10, 40, 80, 160, XXH | SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
| 1-1/4" IPS(1.660"O. D.) | 12" IPS(12.750"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
| 1-1/2" IPS(1.900"O. D.) | 14" IPS(14.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH10 (.188), SCH40 (.375) |
| 2" IPS(2.375"O. D.) | 16" IPS(16.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH10(.188), SCH40(.375) |
| 2 1/2" IPS(2.875"O. D.) | 18" IPS (18.000"O. D.) |
| SCH 10, 40, 80, 160, XXH | SCH-40 (.375) |
| 3" IPS( 3.500"O. D.) | |
| SCH 5, 10, 40, 80, 160, XXH |
Alloy UNS N04400 Seamless Tubes Pressure Class
The thermal and structural performance of monel seamless tube, with properties such as wall thickness, OD, and working pressure.
| Pipe O.D. (in.) |
Wall Thickness of Pipes/Tube (inches) | |||||||
|---|---|---|---|---|---|---|---|---|
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (psig) | ||||||||
| 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 | |||
| Pipe OD | Wall Thickness (Inches) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| .010 | .012 | .016 | .020 | .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| 1/16 | 6,422 | 7,872 | 10,768 | 13,484 | ||||||||
| 1/8 | 6,422 | 9,325 | 11,823 | |||||||||
| 3/16 | 4,081 | 5,935 | 7,630 | 11,005 | ||||||||
| 1/4 | 4,305 | 5,518 | 8,053 | 10,946 | ||||||||
| 3/8 | 3,530 | 5,107 | 7,029 | |||||||||
| 1/2 | 2,595 | 3,721 | 5,078 | 6,699 | ||||||||
| 5/8 | 2,051 | 2,927 | 3,970 | 5,200 | 6,056 | |||||||
| 3/4 | 1,696 | 2,412 | 3,259 | 4,249 | 4,933 | 5,755 | 6,422 | |||||
| 7/8 | 1,446 | 2,051 | 2,764 | 3,592 | 4,161 | 4,842 | 5,391 | |||||
| 1 | 5,040 | 7,140 | 9,595 | 12,445 | 14,390 | 16,715 | 18,585 | |||||
| Pipe OD | Wall Thickness (Inches) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5 | 0.6 | 0.7 | 0.8 | 1.0 | 1.2 | 1.5 | 1.6 | 1.8 | 2.0 | 2.2 | 2.5 | 3.0 | |
| 3 | 464 | 567 | 672 | 775 | 965 | ||||||||
| 4 | 335 | 411 | 491 | 567 | 723 | 873 | |||||||
| 6 | 310 | 360 | 464 | 567 | 723 | 775 | |||||||
| 8 | 227 | 262 | 335 | 411 | 528 | 567 | |||||||
| 10 | 206 | 262 | 320 | 411 | 442 | ||||||||
| 12 | 169 | 215 | 262 | 335 | 360 | 411 | 464 | ||||||
| 14 | 182 | 222 | 282 | 303 | 345 | 389 | 433 | 500 | 612 | ||||
| 16 | 158 | 192 | 244 | 262 | 298 | 335 | 372 | 430 | 528 | ||||
| 18 | 140 | 169 | 215 | 230 | 262 | 294 | 326 | 377 | 464 | ||||
| 22 | 113 | 137 | 173 | 186 | 211 | 236 | 262 | 301 | 369 | ||||
| 25 | 99 | 120 | 152 | 162 | 184 | 206 | 228 | 262 | 320 | ||||
Testing & Inspection of Monel Alloy Seamless 400 Tubes
This table covers the testing and inspection processes conducted for monel 400 seamless tubes, ensuring quality control and compliance with industry standards.
| Test / Inspection | Test / Inspection |
|---|---|
| Mechanical Testing (Tensile, Elongation, Reduction of Area) | Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177 |
| Micro Test | Radiography Test |
| Intergranular Corrosion (IGC) Test | Impact Test |
| Macro Test | Dye Penetrant Test (DP Test) |
| Positive Material Identification – PMI Testing | Hydrostatic Test |
| Chemical Analysis – Spectro Analysis | Hydrogen-Induced Cracking (HIC) Test |
| Hardness Test | Ultrasonic Test (UT) |
| Pitting Resistance Test | Eddy Current Testing |
| Flaring Test | Bend Test |
| Flattening Test | — |
Monel 400 Seamless Tubes Manufacturing Process
Five main steps involved in the Monel 400 tubes manufacturing process, each contributing to the product’s final quality.
1. Raw Material Selection
High-quality Monel billets and strips are carefully selected for superior strength and corrosion resistance.
2. Tubes Formation
The selected raw material is formed into tubes using seamless extrusion methods, depending on the application.
3. Heat Treatment
Tubes undergo required controlled heat treatment to enhance mechanical properties and relieve internal stresses.
4. Cold Working and Finishing
After heat treatment, tubes are cold-worked for better surface finish, dimensional accuracy and improved strength.
5. Quality Control and Testing
Every tube is thoroughly inspected and tested to ensure it meets international quality standards for performance and reliability.
Specific Applications of 400 Monel Seamless Tubes
Monel 400 seamless tube is used in the marine industry for seawater systems, heat exchangers, and saltwater piping due to their exceptional resistance to corrosion and biofouling. These tubes are widely installed in offshore platforms, shipbuilding, and desalination plants where continuous exposure to harsh saline environments demands durable, corrosion-resistant materials.
Marine & Shipbuilding
Oil and Gas Industry
Chemical and Petrochemical Industry
Power Generation & Heat Exchange
Desalination Equipment
Food and Beverage Industry
Pulp & Paper Mill Equipment
Aerospace & Defense
Construction Industry
FAQ
What industries use Monel 400 Seamless Tubes?
What industries use Monel 400 Seamless Tubes?
Monel 400 tubes are widely used in chemical processing, marine engineering, oil and gas, power plants, and desalination units. They are ideal for seawater piping, cooling systems, and other environments where corrosion resistance is critical.
What is Monel 400 tube used for?
What is Monel 400 tube used for?
Monel 400 tubes are used in heat exchangers, condensers, seawater piping, chemical reactors, and marine hardware. They perform well in corrosive liquids and high-pressure systems, ensuring long-term reliability.
Why are Monel 400 Seamless Tubes preferred over stainless steel?
Why are Monel 400 Seamless Tubes preferred over stainless steel?
Monel 400 offers superior corrosion resistance in seawater, acids, and alkalis compared to stainless steel. It also maintains strength under high temperature and pressure, making it more durable in harsh environments.
What is the composition of Monel 400 tube?
What is the composition of Monel 400 tube?
Monel 400 contains roughly 63% nickel, 28–34% copper, with small amounts of iron, manganese, and carbon. This composition provides excellent corrosion resistance, toughness, and long service life.
Can Thaida supply customized Monel 400 Seamless Tubes?
Can Thaida supply customized Monel 400 Seamless Tubes?
Yes, Monel 400 tubes can be supplied in custom lengths, diameters, and specifications. This ensures they meet specific project needs for pressure, temperature, and flow requirements.
What are the benefits of using Monel 400 tube?
What are the benefits of using Monel 400 tube?
Monel 400 tubes provide strong corrosion resistance, high mechanical strength, and long durability. They resist pitting, crevice corrosion, and stress cracking, reducing maintenance and downtime.
Why are seamless Monel 400 Tubes preferred over welded tubes?
Why are seamless Monel 400 Tubes preferred over welded tubes?
Seamless tubes have no weld seam, making them stronger and safer under high pressure. They provide smoother fluid flow, reduce leak risk, and offer reliable performance in critical systems.