Alloy C4 Seamless Tubes

Q: What are the main advantages of Alloy C4 Seamless Tubes?

Alloy C4 seamless tubes offer excellent resistance to corrosion in both oxidizing and reducing environments. They handle acids such as hydrochloric, sulfuric, and nitric effectively. These tubes also provide high strength, durability, and long service life, making them reliable in demanding industrial conditions.

Q: What is Alloy C4 tube used for?

Alloy C4 tubes are used to transport aggressive chemicals, acids, and high-temperature fluids. Industries such as chemical processing, petrochemical, and industrial reactors rely on them for safe, efficient, and long-term performance under harsh conditions.

Q: What differentiates Alloy C4 from other Alloy grades like C22 or C276?

Alloy C4 contains more molybdenum, giving it better resistance to oxidizing acids than C276. C22 performs well in both oxidizing and reducing agents but may have slightly lower resistance in chloride-rich environments. Each grade is chosen based on the specific chemical exposure and required corrosion resistance.

Q: What is the difference between Alloy C and C4 tubes?

Alloy C refers to a general family of nickel-molybdenum alloys, while Alloy C4 is a more specialized grade engineered for enhanced performance in oxidizing acid and chloride-rich environments. It offers improved corrosion resistance and stability for demanding chemical processes.

Q: What is the temperature limit for Alloy C4?

Alloy C4 tubes can operate continuously at temperatures up to 1000°F (540°C). Performance may vary depending on factors such as chemical exposure, pressure, and operating environment. Proper selection ensures maximum service life and operational safety.

Alloy C4 Seamless Tubes offer excellent chemical stability and mechanical properties. Compared to C276, Alloy C4 offers superior resistance to stress-corrosion cracking and better performance in high-temperature air, making it ideal for aggressive chemical process applications. These Alloy tubes are highly resistant to oxidation, pitting and corrosion, ensuring long-lasting durability even in harsh environments. With a high temperature tolerance up to 1000°C, Alloy C4 tubes excel in high-pressure and high-temperature settings. Manufactured according to industry standards like ASTM B622, DIN 2.4610 and UNS N06455, Alloy C4 Seamless Tubing is available in various diameters, thicknesses and finishes, ensuring versatility and customization for different applications.

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Product Overview: Alloy C4 Seamless Tubes

Alloy C4 Seamless Tubes are made from a nickel-molybdenum-chromium alloy, providing excellent chemical stability and mechanical properties. Compared to C276, Alloy C4 offers superior resistance to stress-corrosion cracking and better performance in high-temperature airs, making it ideal for aggressive chemical process applications. These tubes are highly resistant to oxidation, pitting and corrosion, ensuring long-lasting durability even in harsh environments. With a high temperature tolerance up to 1000°C, Alloy C4 tubes excel in high-pressure and high-temperature settings. Manufactured according to industry standards like ASTM B622, DIN 2.4610 and UNS N06455, Alloy C4 Seamless Tubing is available in various diameters, thicknesses and finishes, ensuring versatility and customization for different applications.

Benefits of Using Alloy C4 Seamless Tubes

The benefits of Alloy C4 tube include its superior weldability, oxidation resistance, and mechanical strength.

Excellent resistance to oxidizing and reducing agents ensures long-lasting performance in corrosive environments.

These tubes perform efficiently at elevated temperatures without compromising structural integrity.

Alloy C4 seamless tubing has highly durable construction ensures extended service life even under extreme conditions.

Compatible with a wide range of aggressive chemicals and process media.

These tubes offer superior mechanical strength for high-pressure and heavy-duty applications.

Suitable for use across diverse industries including chemical processing, power and aerospace.

Why Choose Thaida for Your Alloy C4 Seamless Tubes Needs?

Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd. is a trusted ASTM B622 Alloy C4 seamless tubes supplier in Thailand, known for quality and reliability. Our tubes are available in various thicknesses, diameters and finishes to meet customer requirements. With prompt delivery and precision manufacturing, we ensure top-tier products for every application.

Speak with our specialists regarding your Alloy C4 Seamless Tubes needs.

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ASTM B622 Alloy C4 Seamless Tubes Specification

The table below outlines key specifications including standards, dimensions, sizes and forms for alloy C4 seamless tubes.

Standard	ASTM B622 / ASME SB622
Nominal Size	1/8" to 12" (custom sizes available)
Wall Thickness	Sch 5S, 10S, 40S, 80S or custom
Manufacturing Method	Seamless
Length	Single Random, Double Random, or Cut Length
Delivery Condition	Annealed and Pickled, Bright Annealed, Cold Drawn
End Finish	Plain End, Beveled End, or Threaded
Test Certificates	EN 10204 3.1 / 3.2, NABL Approved Lab Report, Third Party Inspection
Marking	ASTM B622, UNS N06455, Size, Heat No., Manufacturer's Name or Logo
Packaging	Standard Export Packing - PE Wrapping, Wooden Boxes or Bundles

Alloy C4 Seamless Tubing Chemical Composition

This table presents the chemical composition of alloy C4 tubing, detailing the percentage of each element used.

Ni	Cr	Mo	Fe	C	Mn	Si	P	S	Co
65.0 min	14.0 – 18.0	14.0 – 17.0	5.0 max	0.015 max	1.0 max	0.08 max	0.04 max	0.03 max	2.0 max

Alloy C4 Seamless Tubes Mechanical Properties

The table below highlights the mechanical properties such as tensile strength, yield strength and elongation of alloy C4 tubes.

Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
8.64 g/cm³	1370 – 1443 °C	690 MPa (100,000 psi)	310 MPa (45,000 psi)	40%

Alloy C4 Seamless Tubes Manufacturing Process

There are 5 steps involved in the Alloy C4 Seamless Tubing manufacturing process which are given below.

1. Raw Material Selection
High-quality alloy billets and strips are carefully selected for superior strength and corrosion resistance.

2. Tube 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 Alloy C4 Seamless Tubes

Alloy C4 seamless tubes are primarily used in the chemical processing industry for handling aggressive media like acids and chlorides. These tubes are widely utilized in heat exchangers, reactors, and evaporators where resistance to strong oxidizing agents and localized corrosion is critical. Alloy C4 seamless tubes are primarily used in the chemical processing industry for handling aggressive media like acids and chlorides. These tubes are widely utilized in heat exchangers, reactors, and evaporators, where resistance to strong oxidizing agents and localized corrosion is critical.

Chemical and Petrochemical Industry

Oil and Gas Industry

Pharmaceutical & Biotechnology

Power Generation & Heat Exchange

Marine & Shipbuilding

Automotive & Aerospace Industry

Water Treatment & Plumbing

Construction & Infrastructure

Aerospace & Defense

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FAQ

What are the main advantages of Alloy C4 Seamless Tubes?

Alloy C4 tubes offer excellent resistance to corrosion in both oxidizing and reducing environments. They handle acids such as hydrochloric, sulfuric, and nitric effectively. These tubes also provide high strength, durability, and long service life, making them reliable in demanding industrial conditions.

What is Alloy C4 tube used for?

These tubes are used to transport aggressive chemicals, acids, and high-temperature fluids. Industries such as chemical processing, petrochemical, and industrial reactors rely on them for safe, efficient, and long-term performance under harsh conditions.

What are the advantages of Alloy C4 tubes?

Alloy C4 resists pitting, crevice corrosion, and stress corrosion cracking. It maintains strength at high temperatures and handles harsh chemical environments efficiently. These properties make C4 tubes ideal for extreme industrial applications where reliability is critical.

What differentiates C4 from other Alloy grades like C22 or C276?

C4 contains more molybdenum, giving it better resistance to oxidizing acids than C276. C22 performs well in both oxidizing and reducing agents but may have slightly lower resistance in chloride-rich environments. Each grade is chosen based on the specific chemical exposure.

What is the difference between Alloy C and C4 tubes?

Alloy C is a general category of nickel-molybdenum alloys. C4 is a specialized version designed for better performance in oxidizing acid and chloride-rich environments. It offers enhanced corrosion resistance for challenging chemical processes.

Which industries benefit most from Alloy C4 Seamless Tubes?

Chemical, petrochemical, pharmaceutical, power generation, and marine industries benefit the most. Any industry dealing with corrosive chemicals, high pressures, or elevated temperatures finds C4 tubes essential for reliable operation.

What is the temperature limit for Alloy C4?

C4 tubes can operate up to 1000°F (540°C) continuously. Actual performance depends on chemical exposure, pressure, and operational conditions. Proper selection ensures safety, longevity, and reliable operation.