Monel Tubes Manufacturer and Supplier in Thailand

A Monel tube is a type of metal tubing made from a nickel-copper alloy known as Monel, which offers outstanding resistance to corrosion, especially in seawater and chemical environments. At Thaida, a trusted Monel tube manufacturer based in Chon Buri, Thailand, we specialize in producing top-quality Monel tubes that meet international standards. These tubes are highly durable, strong, and suitable for high-pressure and high-temperature applications. Our tubes, available in grades like Monel 400 and Monel K500, are widely used in marine, chemical, and aerospace industries for their reliable performance in extreme conditions.

What Is Monel Tubes?

Monel tube is a high-performance tubing, a corrosion-resistant nickel-copper alloy typically composed of around 63% nickel, 30% copper, and small amounts of iron and manganese. Known for its excellent toughness, strength, and resistance to oxidation, Monel tubing is available in both seamless and welded forms. It retains its mechanical properties across a wide temperature range, making it suitable for extreme conditions. They have superior corrosion resistance, especially in marine and chemical environments, along with high strength and durability. Common grades like Monel 400 and Monel K500 offer varying levels of hardness and performance. Monel tubes adhere to global standards such as  ASTM B163 further ensuring their reliability.

Monel Tubes

Specific Advantages of Monel Tubes

The specific advantages of Monel Tubes include corrosion resistance, strength, and thermal stability.

corrosion resistance

High Corrosion Resistance

Monel tubes exhibit outstanding corrosion resistance, particularly in seawater and acidic environments, ensuring long service life.

Hygienic Properties

Resistance to High Temperatures

It retains strength and stability at elevated temperatures, offering consistent performance in heat-intensive conditions.

Durability and Strength

High Strength

These tubes maintain excellent strength even under high-stress conditions, making it suitable for structural and pressure-related uses.

Environmental Sustainability

Easy Machining

Monel tubes are relatively easy to machine and form, allowing for efficient processing and customization.

Low Maintenance

Good Mechanical Properties

Monel tubing provides a reliable balance of toughness, elasticity, and durability across various temperatures and pressures.

Low Maintenance

Non-Magnetic

Naturally non-magnetic, Monel tubing is ideal for applications where magnetic interference must be avoided.

Low Maintenance

Welding and Fabrication

Monel can be readily welded and fabricated using conventional techniques, enabling seamless integration into complex systems.

Why Choose Thaida for Monel Tubes in Thailand? – Trusted Quality & Supply

Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd. is a trusted Monel tube supplier in Thailand, recognized for certified production processes and compliance with international standards such as ASTM and ASME. With technical expertise, we ensure precision manufacturing, on-time delivery, and responsive customer support. Whether you need standard sizes or custom solutions, we deliver quality assured Monel tubing tailored to meet your project requirements, both locally and internationally.
Competitive Pricing

Competitive Pricing

Global Exports Expertise

Global Exports Expertise

Large Inventory & Fast Dispatch

Large Inventory & Fast Dispatch

Custom Sizes & Finishes

Custom Sizes & Finishes

Industry Certifications & Compliance

Industry Certifications & Compliance

Long service life in harsh conditions

Advanced Production Technology

After-Sales Support, Service- Technical Support

After-Sales Support, Service- Technical Support

In-House Testing & Full Traceability

In-House Testing & Full Traceability

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Specification Of Monel Alloy Tubing

Below is the specification table for Monel alloy tubing, highlighting its size, dimensions, and standards for various industrial uses.

Standard ASTM B163/ ASME SB163
End Screwed, Beveled, Threaded, Plain
Schedule Thickness Ranges Supplier in SCH XS, SCH 40, SCH 80S, SCH 5, SCH 80, SCH XXS, SCH 160, SCH10, All Schedules
Length Single Random, Double Random, Cut to length
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Type Seamless
Sizes 6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
Surface Finish 2B, No.1, No.4, No.8 Mirror Finish
Form Square, Rectangular, Round Etc.
Delivery Condition Annealed & Pickled, Bright & Annealed, etc

Different Types of Monel Tubes Available in Thailand

There are various types of Monel tubes each tailored to meet specific industrial needs and applications.

At Thaida, we only provide high-quality monel seamless tubes.

Seamless Monel Tubes

Seamless Monel Tubes

These tubes are manufactured without any weld seams, ensuring exceptional strength and corrosion resistance, ideal for high-pressure and high-temperature applications.

ASTM B163 Monel Tubing

ASTM B163 Monel Tubing

Monel tubing meeting ASTM B163 standards, known for its excellent resistance to corrosion in marine, chemical, and heat exchange applications.

ASTM B165 Monel Seamless Tubes

ASTM B165 Monel Seamless Tubes

Monel tubes are manufactured according to ASTM B165 standards, offering excellent performance and resistance to extreme conditions.

Monel Instrumentation Tubing

ASTM B163 Monel Instrument Tubing

Monel tubes are used for instrumentation, designed to provide precise and reliable performance in critical systems and environments.

Monel Rectangle Tubes

Monel Rectangle Tubes

Monel tubes with a rectangular cross-section, designed for applications requiring strength and optimal flow characteristics in custom spaces.

Monel Alloy Coil Tubes

Monel Alloy Coil Tubes

Coiled Monel alloy tubing, ideal for flexible and high-resistance applications in fluid and gas transport systems.

Monel Square Tubes

Monel Square Tubes

Square-shaped Monel tubes, offering reliable performance in structural and mechanical applications where high corrosion resistance is crucial.

Monel Bourdon Tube

Monel Bourdon Tubes

These tubes are used in Bourdon tube pressure gauges, offering high strength and resistance to corrosion in harsh conditions.

AR 15 Monel Alloy Gas Tubes

AR 15 Monel Alloy Gas Tubes

Specialized Monel alloy gas tubes for AR-15 rifles, offering superior strength and corrosion resistance under high-pressure conditions.

Monel Capillary Tubes

Monel Capillary Tubes

Monel tubes with small diameters, suitable for precise fluid handling and used in instrumentation and chemical processing.

ASTM B163 Monel Coiled Tubing

ASTM B163 Monel Coiled Tubing

Flexible Monel tubing in coiled form, often used in high-pressure fluid and gas systems that require flexibility and durability.

Small Diameter Monel Tubing

Small Diameter Monel Tubing

Monel tubing with very small diameters, providing precision and reliability for applications in tight spaces or delicate systems.

Chemical Composition Of Monel Steel Tubing

The Monel tube chemical composition table highlights essential elements such as chromium, nickel, carbon, and manganese levels.

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

The mechanical properties table for Monel Tubes covers tensile strength, yield strength, elongation, and other metrics below.

Tensile Strength, Ultimate Tensile Strength, Yield Elongation At Break
550 MPa 240 MPa 48%

The pressure rating of cold-rolled Monel coiled tubing depends on dimensions and wall thickness, designed for high-pressure operations in critical systems.

Tube O.D.
(in.)
Wall Thickness of Tubes (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

The pressure rating for Monel Tubes includes max operating pressure at different temperatures and schedules.

Tube O.D. Wall Thickness of Tubing (Inches)
Size (Inches) .028 .035 .049 .065 .083 .095 .109 .120
1/8 Inch 8000 10450
1/4 Inch 3750 4800 7000 9800 NOTE: use tubing with wall thickness outside of gray screened area for light gas services
3/8 Inch 3100 4450 6150
1/2 Inch 2300 3300 4450
3/4 Inch 2250 3050 4000 4600
1 Inch 2250 2900 3400 3900 4350

Monel tubing is manufactured as per international standards such as ASTM B165, ASTM B165, and ASME SB specifications to ensure consistent quality and performance.

ASTM USA American Society of Mechanical Engineers
AISI USA Acronym of American Iron and Steel Institute
JIS JP Japanese Industrial Standards
DIN GER Deutsches Institut für Normung e.V.
UNS USA Unified Numbering System

As a trusted Monel tubing supplier, we offer a broad range of gauge thicknesses to suit various industrial needs, ensuring flexibility and precision in application.

GAUGE TYPICAL VALUE (INCH) THICKNESS RANGE (INCH)
22 0.0028 0.0025 - 0.0029
20 0.0035 0.0031 - 0.0035
19 0.0042 0.0038 - 0.0042
18 0.0049 0.0044 - 0.0049
17 0.0058 0.0053 - 0.0058
16 0.0065 0.0060 - 0.0065
15 0.0072 0.0066 - 0.0074
14 0.0083 0.0075 - 0.0085
13 0.0095 0.0087 - 0.0097
12 0.0109 0.0101 - 0.0111
11 0.012 0.0112 - 0.0122
10 0.0134 0.0126 - 0.0136
9 0.0148 0.0140 - 0.0150
8 0.0165 0.0157 - 0.0167
7 0.018 0.0175 - 0.0185

The standard weights of Monel steel tubing are based on outer diameter and wall thickness, essential for accurate system design and load calculations.

DIMENSIONS WEIGHT PER WALL DIMENSIONS WEIGHT PER WALL
(MILLIMETER) METER (KG) (MILLIMETER) (MILLIMETER) METER (KG) (MILLIMETER)
12.07 x 12.07 0.044 1.020 40 x40 1.049 1.020
0.055 1.050 1.085 1.050
15 x 15 0.053 1.020 2.045 2.000
0.065 1.050 3.075 3.000
20 x 20 0.071 1.020 50 x50 2.032 1.050
0.088 1.050 3.008 2.000
1.019 2.000 4.065 3.000
25 x 25 0.092 1.020 60 x60 3.071 2.000
1.014 1.050 5.049 3.000
1.049 2.000 70 x70 6.053 3.000
2.020 3.000 80 x80 4.098 2.000
30 x 30 1.010 1.020 7.053 3.000
1.037 1.050 100 x 100 6.040 2.000
1.084 2.000 9.053 3.000
2.072 3.000      

Manufacturing Process Of Monel Tubes

Following are the 5 steps involved in the monel tube manufacturing process to achieve high-quality output.

Monel Seamless Tubes Manufacturing Process

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.

Applications Of Monel Tubes

Monel tubes are primarily used in the marine industry for seawater applications such as heat exchangers, condensers, and piping systems due to their exceptional resistance to saltwater corrosion. Beyond marine use, Monel tubes are also utilized in the chemical processing industry for handling acidic and alkaline substances, as well as in oil and gas sectors for sour gas service and offshore installations where durability under extreme conditions is essential.

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

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FAQ Of Monel Tubes

What industries use Monel Tubes?

Monel tubes are widely used in marine engineering, chemical processing, oil and gas, and power plants. They are also common in seawater piping, desalination units, and aerospace components. Any industry that needs strong corrosion resistance benefits from Monel tubes.

A Monel tube is a nickel-copper alloy tube known for high strength, durability, and excellent corrosion resistance. It comes in popular grades like Monel 400 and Monel K-500, each suited for specific chemical or marine applications.

Monel tubes resist corrosion in seawater, acids, and alkalis far better than stainless steel. They also maintain strength under high-temperature and high-pressure conditions, making them more reliable for harsh environments.

Monel tubes are used in seawater piping, chemical reactors, heat exchangers, condensers, and marine hardware. They also serve in oil and gas pipelines, aerospace systems, and desalination units where corrosion is a concern.

They retain strength and resist oxidation at high temperatures up to about 1000°F (540°C), depending on the grade. Monel maintains durability and performance even in hot, corrosive conditions.

Monel tubes provide excellent corrosion resistance, strong mechanical strength, and long service life. They resist pitting, crevice corrosion, and stress cracking, reducing maintenance and downtime in tough environments.

Monel K-500 includes small amounts of aluminum and titanium, which allow precipitation hardening. This makes it stronger than Monel 400 while keeping its excellent corrosion resistance intact.

Monel tubes do not rust in seawater or most chemical environments. However, prolonged exposure to very strong oxidizing acids or extremely high temperatures may cause surface oxidation.

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