Alloy Steel Pipe Manufacturer in India

In high-temperature and high-pressure industrial systems, material performance is critical to operational safety and efficiency. As a leading Alloy Steel Pipe Manufacturer in India, CEBEX STEEL INDIA delivers precision-engineered alloy steel pipes designed for demanding environments such as power plants, refineries, petrochemical facilities, and boiler systems.

Alloy steel pipes are enhanced with elements such as chromium, molybdenum, and nickel, providing superior strength, heat resistance, and corrosion resistance compared to standard carbon steel. These properties make them ideal for applications involving elevated temperatures, pressure fluctuations, and aggressive media.

We manufacture and supply alloy steel pipes in compliance with international standards including ASTM, ASME, DIN, and EN, ensuring consistent quality and global project compatibility.

Alloy Steel Pipes Manufacturer in India – ASTM A335 Seamless Pipes | Cebex Steel India

Why Choose Us as Your Alloy Steel Pipe Supplier?

Selecting a reliable Alloy Steel Pipe Manufacturer in India is essential for ensuring long-term performance and safety in critical applications. CEBEX STEEL INDIA is recognized for its advanced manufacturing capabilities, strict quality control, and global supply expertise.

We manufacture pipes as per ASTM A335, ASTM A213, and ASTM A691 standards, widely used in high-temperature services. Each pipe undergoes rigorous testing including PMI (Positive Material Identification), ultrasonic testing, hydrostatic testing, radiographic testing, and mechanical testing.

We maintain complete traceability through heat numbers and batch records. All products are supplied with EN 10204 3.1 / 3.2 Mill Test Certificates, ensuring compliance with EPC and international project requirements.

Product Overview & Key Features

Feature	Specification / Detail
Product Type	Alloy Steel Pipes
Standards	ASTM A335, ASTM A213, ASTM A691
Pipe Types	Seamless, Welded
Grades	P5, P9, P11, P22, P91, P92
Size Range	½" NB to 48" NB
Schedules	SCH 5 to SCH XXS
Surface Finish	Black, Painted, Shot Blasted
End Type	Plain End, Beveled End

These pipes are engineered for high-temperature strength, creep resistance, and long-term durability in critical industrial applications.

Types of Alloy Steel Pipes We Manufacture

Our product range includes seamless alloy steel pipes for high-pressure and high-temperature applications and welded alloy steel pipes for structural and large-diameter requirements.

Seamless pipes are widely used in boilers, superheaters, and heat exchangers, while welded pipes are suitable for structural and process piping systems. We also provide custom alloy steel pipes tailored to specific project requirements.

Grades, Materials & International Standards

Alloy Steel Pipe Grades

Grade	Standard	Typical Applications
P5	ASTM A335	Refineries, chemical plants
P9	ASTM A335	High-temperature piping
P11	ASTM A335	Power plants, boilers
P22	ASTM A335	Steam lines, pressure systems
P91	ASTM A335	Ultra-supercritical power plants
P92	ASTM A335	Advanced high-temperature service

Applicable Standards

Category	Standards
Pipe Standards	ASTM A335, ASTM A213
ASME Standards	ASME SA335, SA213
Dimensional Standards	ASME B36.10
International Standards	DIN, EN, ISO

Chemical Composition & Mechanical Properties

Chemical Composition Table (% by Weight)

Grade	C	Cr	Mo	Mn
P11	0.05–0.15	1.0–1.5	0.44–0.65	0.30–0.60
P22	0.05–0.15	1.9–2.6	0.87–1.13	0.30–0.60
P91	0.08–0.12	8.0–9.5	0.85–1.05	0.30–0.60

Mechanical Properties Table

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation
P11	415	205	30%
P22	415	205	30%
P91	585	415	20%

Alloy steel pipes offer excellent creep strength, oxidation resistance, and high-temperature stability.

Dimensions, Sizes & Weight Chart

Size (NB)	OD (mm)	Thickness (mm)	Weight (kg/m)
½"	21.3	2.77	1.27
1"	33.4	3.38	2.68
2"	60.3	3.91	5.44
4"	114.3	6.02	15.32
8"	219.1	8.18	43.39

Custom sizes, heavy wall thickness, and large diameter pipes are available.

Applications & Industries Served

Alloy steel pipes are widely used in industries requiring high strength and resistance to elevated temperatures. These include power plants, oil & gas refineries, petrochemical plants, boilers, heat exchangers, and pressure vessels.

Their ability to withstand extreme heat, pressure, and corrosive environments makes them essential for critical industrial operations.

Testing & Quality Assurance

All pipes undergo strict inspection procedures including ultrasonic testing, radiography, hydrostatic testing, PMI, and mechanical testing to ensure compliance with international standards.

Each product is supplied with EN 10204 3.1 / 3.2 certification, ensuring full traceability and quality assurance.

Packing, Delivery & Export Capabilities

Alloy steel pipes are packed using export-grade wooden cases, bundles, and protective coatings to prevent damage and corrosion during transit. Each pipe is marked with grade, size, standard, and heat number.

We provide complete export documentation including test certificates, invoices, packing lists, and certificates of origin for smooth international shipping.

Exporting Alloy Steel Pipes to Africa

As a trusted Alloy Steel Pipe Manufacturer in India, we supply pipes to major industrial and infrastructure projects across Africa.

Our pipes are widely used in Nigeria, Egypt, Kenya, South Africa, and Ethiopia, supporting power generation and oil & gas sectors.

Related Alloy Pipes – Carbon Steel, Stainless Steel, Duplex, Nickel Alloy

In addition to Alloy Steel Pipes, we also manufacture and export Carbon Steel Pipes , Stainless Steel Pipes , Duplex Stainless Steel Pipes , Super Duplex Pipes , Inconel Pipes , and Hastelloy Pipes . These specialty alloy and metal pipes are engineered for extreme environments where superior corrosion resistance, high strength, and temperature stability are required.

Our technical team can guide you in selecting the right pipe grade and specification for your application.

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Why Choose CEBEX STEEL INDIA?

CEBEX STEEL INDIA is known for technical expertise, consistent quality, and reliable global supply. We offer competitive pricing, fast delivery, and strong engineering support for industrial piping requirements.

Frequently Asked Questions (FAQ)

What are alloy steel pipes used for?

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Alloy steel pipes are used in high-temperature and high-pressure applications such as power plants, refineries, boilers, and heat exchangers due to their enhanced strength and heat resistance.

What is ASTM A335 pipe?

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ASTM A335 is a standard specification for seamless alloy steel pipes used in high-temperature service, commonly in power plants and industrial piping systems.

Which alloy steel grade is best for high-temperature applications?

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Grades such as P91 and P92 are widely used for high-temperature applications due to their excellent creep strength and thermal stability.

What testing is performed on alloy steel pipes?

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Testing includes ultrasonic testing, radiographic testing, hydrostatic testing, PMI, and mechanical testing to ensure performance and compliance.

Can you supply custom alloy steel pipes?

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Yes, we manufacture pipes as per client drawings and specifications, including custom sizes, wall thicknesses, and heat treatment requirements.

What industries use alloy steel pipes?

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Industries such as power generation, oil & gas, petrochemical, and heavy engineering rely on alloy steel pipes for high-performance applications.

Do you provide certification with alloy steel pipes?

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Yes, all pipes are supplied with EN 10204 3.1 / 3.2 Mill Test Certificates and inspection reports.