Monel K500 Seamless Tubes Manufacturer and Supplier Thailand

Monel K500 Seamless Tubes is a high-performance nickel-copper alloy tube that combines excellent corrosion resistance with enhanced strength and durability—ideal for challenging environments such as marine, chemical, and oil & gas industries. Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd., based in Chon Buri, is a trusted producer of precision-engineered Monel K500 seamless tubes that meet international standards such as ASTM B163. With a strong commitment to quality, customization, and global delivery, we provide dependable tubing solutions for high-stress applications.

What Are Monel K500 Seamless Tubes?

Monel K500 seamless tubes have small amounts of aluminum and titanium which is a unique composition that significantly increases strength, hardness, and resistance to corrosion, erosion, and wear. The Monel K500 material is also non-magnetic and maintains excellent performance under extreme conditions such as high pressure and elevated temperatures, making it ideal for demanding applications.

Commonly produced to standards, these Monel tubes are trusted in industries like marine engineering, chemical processing, and oil & gas. The seamless construction of these tubes eliminates the risk of weak points or weld defects, offering superior pressure resistance and structural integrity over welded options.

Available in a wide range of dimensions and thicknesses, including ASTM B163 UNS N05500 Thin Wall Tubing, Nickel K500 CDW Tubes, and Alloy K500 Cold Drawn Seamless Tubes, they are preferred for critical systems requiring reliable and long-lasting performance.

k500-tube

Key Features of Monel K500 Seamless Tubes

N05500 Nickel Alloy Seamless Tubes combine exceptional corrosion resistance with enhanced strength, making them ideal for high-performance and demanding environments. The seamless construction further ensures consistency in pressure ratings and structural integrity.

corrosion resistance

High Corrosion Resistance

Monel K500 seamless tubes excel in resisting corrosion from seawater, acids, alkalis, and other harsh chemicals. This makes them highly effective in environments prone to oxidative damage, ensuring a longer lifespan and reduced need for replacements.

Hygienic Properties

Excellent Weldability

These tubes are highly weldable with minimal risk of cracking, even under high thermal stress. Their ability to be welded using conventional techniques ensures ease of fabrication, enabling manufacturers to create custom products without the risk of compromising the material’s integrity.

Durability and Strength

Good Strength at High Temperatures

Monel K500 retains its mechanical strength and hardness in high-temperature environments, withstanding temperatures up to 480°C (900°F). This ensures reliable performance even under heat cycling or thermal shock conditions.

 

Environmental Sustainability

Superior Resistance to Pitting and Crevice Corrosion

With its unique alloy composition, Monel K500 offers superior resistance to pitting and crevice corrosion, which are common in materials exposed to chlorides and other corrosive agents.

Industry Certifications & Compliance

Durability in Harsh Environments

The combination of strength, corrosion resistance, and non-magnetic properties ensures that Monel K500 seamless tubes perform reliably in a variety of harsh conditions, including exposure to strong acids, saltwater, and high-pressure environments. Its durability contributes to minimising downtime and maintenance.

Global Exports Expertise

Non-Magnetic

As a non-magnetic material, Monel K500 is immune to the effects of external magnetic fields, ensuring stable and predictable performance in sensitive applications, such as electrical systems or other non-magnetic industrial setups.

Low Maintenance

Formability

Monel K500 offers excellent formability, allowing for easy cold working and shaping into various configurations. This ensures flexibility during manufacturing and enables the production of custom-designed tubes for specific applications without compromising strength or durability.

Versatility

Low Maintenance

The high resistance to corrosion, wear, and environmental stress ensures that Monel K500 tubes require minimal maintenance throughout their lifecycle. 

Why Choose Thaida For ASTM B163 UNS N05500 Monel K500 Seamless Tubes

We are a trusted supplier of ASTM B163 UNS N05500 Monel K500 Seamless Tubes, offering certified quality and reliability for demanding industries. With quality certified assurance, we ensure compliance with international standards and provide custom sizes, fast delivery, and exceptional technical support. Our extensive experience serving oil & gas, marine, and chemical sectors makes Thaida the preferred partner for high-performance materials.

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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Standard Specification of Monel K500 Seamless Tubes

Monel K500 seamless tube specifications detail dimensions, Marking, standard codes, length options, and surface finish types.

Monel K500 Tubing Standards ASTM B163 / ASME SB163
Monel K500 Seamless Tubes Size 3.35 mm OD To 101.6 mm OD
Marking All Alloy Monel K500 Tubing are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Alloy K500 Tubing Length Single Random, Double Random, Standard & Cut length Tubes
Monel 2.4375 Tubing Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Form Round, Rectangular, Square etc
Types of Monel grade K500 Tubing Seamless
Monel 2.4375 Tubes wall thickness 0.020" –0.220", (special wall thicknesses available)
Monel grade K500 Tubes End Plain End, Beveled End, Treaded Tubes

Chemical Composition of K500 Monel Seamless Tubes

This chemical composition of the K500 Monel Seamless Tubes table includes key elements like chromium, nickel, and carbon.

Grade C Mn Si S Cu Fe Ni
Monel K500 0.25 max 1.5 max 0.5 max 0.010 max 27.00 – 33.00 0.5 – 2 63.00 min

The mechanical properties table for Alloy K500 Tubes covers tensile strength, yield strength, elongation, and other metrics below.

Alloy K500 Element Alloy K500 Density Alloy K500 Melting Point Alloy K500 Tensile Strength Alloy K500 Yield Strength (0.2% Offset) Elongation
Monel K500 Pipes/ Tubes 8.44 g/cm³ 1350 °C (2460 °F) Psi – 160000 , MPa – 1100 Psi – 115000 , MPa – 790 20%

This table shows the various schedules and sizes available for UNS N05500 tubing, providing detailed information on the pressure ratings and wall thicknesses:

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

The following table presents a list of equivalent standards for ASME SB165 Monel K500 Seamless Tubes, ensuring compatibility with other high-performance tubing materials:

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
Monel K500 N05500 2.4375

The pressure rating of ASTM B163 UNS N05500 tubing varies depending on its dimensions and wall thickness, providing high pressure endurance in critical applications. See the table for detailed pressure ratings:

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

Monel K500 Seamless Tubes Manufacturing Process

Following are the 5 steps involved in the Monel K500 Seamless Tubes 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. Pipes Formation
The selected raw material is formed into pipes using seamless extrusion methods, depending on the application.

3. Heat Treatment
Pipes undergo required controlled heat treatment to enhance mechanical properties and relieve internal stresses.

4. Cold Working and Finishing
After heat treatment, pipes are cold-worked for better surface finish, dimensional accuracy and improved strength.

5. Quality Control and Testing
Every pipe is thoroughly inspected and tested to ensure it meets international quality standards for performance and reliability.

Applications Of Monel K500 Seamless Tubes

Monel K500 seamless tubes are used in the marine and offshore oil & gas industry for critical components exposed to seawater and harsh environments. These tubes are extensively utilized in pump shafts, heat exchangers, valve parts, and seawater piping systems. It is also used in chemical processing plants for handling aggressive acids, and in aerospace systems for fuel and hydraulic lines where strength and corrosion resistance are crucial.

Marine & Shipbuilding

Oil and Gas Industry

Chemical and Petrochemical Industry

Power Generation & Heat Exchange

Aerospace & Defense

Automotive and Transportation

Construction and Architecture

Food and Beverage Industry

Pharmaceutical & Biotechnology

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FAQ

What industries use Monel K500 Seamless Tubes?

Monel K500 tubes are used in marine engineering, chemical processing, oil and gas, aerospace, and power plants. They are ideal for high-strength piping, seawater systems, and other corrosive environments where both toughness and durability are required.

K500 is stronger than Monel 400 due to precipitation hardening while still maintaining corrosion resistance. It is preferred in applications where higher strength and durability under stress are critical.

They maintain strength under high loads, pressure, and repeated mechanical stress. Precipitation hardening allows the tubes to resist deformation and retain structural integrity over time.

Seamless tubes have no weld seam, which makes them stronger, safer under high pressure, and more reliable under mechanical stress. They also offer smoother fluid flow and lower risk of leaks.

Monel K500 has a typical hardness of 250–300 HB in the annealed condition. After precipitation hardening, hardness increases to 350–400 HB, making it highly durable in demanding applications.

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