Alloy C22 Seamless Tubes

Alloy C22 seamless tube is a cylindrical hollow component made from a corrosion-resistant nickel-chromium-molybdenum alloy, specifically designed to transport fluids or gases in highly corrosive environments. These tubes are known for their exceptional resistance to a wide range of chemical substances, including oxidizing and reducing agents. Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd., a leading tubes manufacturer and supplier based in Chon Buri, Thailand, offers high-quality Alloy C22 seamless tubes widely used in industries such as chemical processing, marine, pharmaceuticals, and pollution control. Our Alloy seamless tubes are available in various sizes and pressure ratings to meet the performance needs of critical industrial applications.

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Product Overview: Alloy C22 Seamless Tubes

Alloy C22 Seamless Tubes are advanced, high-performance tubes offering excellent resistance to corrosion, pitting, and stress-corrosion cracking, especially in high-temperature settings. Compared to other alloys like C4 and C276, these tubes perform better in aggressive chemical environments and withstand extreme pressure and temperature conditions. Meeting global industry standards like ASTM B622, DIN 2.4602 and UNS N06022, these tubes provide engineers and purchasers with a dependable solution. Common uses include heat exchangers, reactors and piping systems, where strength under stress is essential. The Alloy C22 Seamless Tubing is a trusted choice for industries requiring durable materials in the most challenging conditions. This seamless tubing is also known for its weldability which makes it a reliable choice for demanding welded systems.

Benefits of Using Alloy C22 Seamless Tubes

Benefits of Alloy C22 seamless tube include localized corrosion protection, Chemical Compatibility, and Versatility.

Excellent protection against pitting, crevice corrosion, and stress-corrosion in harsh chemical and marine environments.

Maintains superior strength and stability when exposed to high temperature airs and extreme operating conditions.

Designed for long service life with exceptional resistance to wear, deformation and environmental damage.

Offers outstanding resistance to a wide range of aggressive chemicals, including oxidizing and reducing agents.

Provides excellent toughness and mechanical stability under high-pressure, temperature and corrosive settings.

Ideal for various chemical process applications, including heat exchangers, reactors, piping systems and marine equipment.

Why Choose Thaida for Your Alloy C22 Seamless Tubes Needs?

We are the best ASTM B622 Alloy C22 Seamless Tubes Supplier in Thailand, delivering superior quality products tailored to your needs. Our Alloy tubes are available in various thicknesses, diameters and finishes that meet customer requirements. We ensure precision manufacturing, strict quality control and on-time delivery for every order.

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ASTM B622 Alloy C22 Seamless Tubes Specification

The specification of Alloy C22 seamless tubes such as size range, outer diameter, wall thickness, length, surface finish, and available schedules.

ASTM/ ASME Specification	ASTM B622 / ASME SB622
Shapes	Alloy UNS N06022 Round, Rectangular, Square
Manufacturing Type	Seamless
Thickness Range	SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS
Swg & Bwg	10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Standard	SUS, JIS, AISI, ASTM, GB, DIN, EN
Delivery Condition	Annealed and Pickled (AP), Bright Annealed (BA), Cold Drawn, MF
Value Added Services	Cutting Beveling Threading Draw & Expansion as per required Size & Length Ultrasonic Testing Annealed & Pickled Bending Destructive and Non-Destructive
END	Plain End, Beveled End, Treaded Alloy C22 Tubes

Alloy C22 Seamless Tubing Chemical Composition

The tube composition includes the blend of elements like nickel, chromium, molybdenum, iron, cobalt and others used in the alloy.

Ni	C	Mo	Mn	Si	Fe	P	S	Co	Cr
Balance	0.010 maximum	12.5 - 14.5	0.50 maximum	0.08 maximum	2 - 6	0.02 maximum	0.02 maximum	2.5 maximum	20 - 22.5

ASTM B622 Alloy C22 Seamless Tube Mechanical Properties

The table covers essential mechanical data including tensile strength, yield strength, elongation percentage and hardness values.

Density	Melting Range	Yield Stress (0.2% Offset)	Tensile Stress	Elongation
8.69 g/cm³	1399 °C (2550 °F)	Psi - 45,000 , MPa - 310	Psi - 100,000 , MPa - 690	45%

Alloy NW 6022 Seamless Tube Equivalent Properties

The global equivalents and standards such as UNS numbers, DIN, ASTM specifications, and trade names of these tubes across various systems are mentioned.

NICKEL ALLOY	UNS	DIN / WERKSTOFF NR.	AFNOR	EN	JIS	BS	GOST
Alloy C22	N06022	2.4602	-	NiCr21Mo14W	NW 6022	-	-

Alloy C22 Seamless Tubes Manufacturing Process

The manufacturing of Alloy C22 seamless tube follows a five-step process, ensuring compliance with industry standards.

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 C22 Seamless Tubes

Alloy C22 seamless tubes find their most extensive use in the chemical processing sector, where they are essential for transporting corrosive liquids and gases. These tubes are commonly integrated into heat exchangers, reactors, and piping systems exposed to aggressive chemicals like hydrochloric acid, chlorine, and sulfuric compounds. It is also utilized in industries such as pharmaceuticals, marine engineering, and environmental systems

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 is equivalent to Alloy C22 material?

Alloy C22, also known as Alloy 22, is equivalent to UNS N06022 and WERKSTOFF NR. 2.4602. It corresponds to JIS NW 6022 and EN NiCr21Mo14W standards. For product forms, typical specifications include ASTM B575 for sheets and ASTM B622/B829 or DIN 17751 for seamless pipes and tubes.

Why choose Alloy C22 seamless tubes over welded tubes?

Alloy C22 seamless tubes are preferred for high-pressure, high-temperature, and corrosive environments due to their one-piece construction, offering up to 20% higher pressure resistance, superior corrosion resistance, and greater reliability. They ensure smooth internal surfaces and integrity under extreme conditions, making them ideal for chemical and marine applications, while welded tubes are more cost-effective for low-pressure or longer-length requirements.

Which industries use Alloy C22 Seamless Tubes?

Alloy C22 seamless tubes are widely used across industries such as chemical, petrochemical, pharmaceutical, power generation, oil and gas, pulp and paper, waste treatment, marine, and aerospace. Their exceptional resistance to corrosion, even in harsh environments with oxidizing and reducing agents, makes them ideal for critical applications involving acids, seawater, and high temperatures.

What makes Alloy C22 different from other Alloy grades?

Alloy C-22 stands out from other grades like C-276 due to its higher chromium content (about 22%) and added tungsten, offering superior resistance to oxidizing acids, chlorides, and localized corrosion. It provides excellent protection against pitting, crevice corrosion, and stress corrosion cracking, while maintaining strong performance in reducing environments and outstanding weldability, making it an improved alternative to Alloy C-276 in aggressive conditions.

What is c22 alloy tube?

Alloy C22 tubes are nickel-chromium-molybdenum alloy tubes known for exceptional corrosion resistance in both oxidizing and reducing environments. It offers high strength, excellent weldability, and resistance to pitting, crevice corrosion, and stress corrosion cracking. making it ideal for demanding applications in chemical processing, power generation, and marine industries.

What are the advantages of alloy c22 tube?

Alloy C22 tubes combine exceptional corrosion resistance with high-temperature strength and excellent mechanical properties. It resists pitting, crevice corrosion, and stress corrosion cracking while maintaining stability under extreme conditions. With good fabricability and weldability, these tubes are preferred for demanding applications in chemical processing, pharmaceuticals, and waste treatment industries.

What is the temperature limit for alloy c22?

Alloy C22 can be used up to 1250°F (677°C) in oxidizing environments and up to 2000°F (1095°C) in reducing conditions, while also performing well at temperatures as low as -450°F (-268°C). Operating above 1250°F in oxidizing conditions can lead to detrimental phase formation, but the alloy maintains excellent corrosion resistance and stability across this wide temperature range.