ASTM A213 T9 Seamless Alloy Steel Pipe

High-temperature Boiler Tubing

Astm a213 t9 seamless alloy tubes offer excellent corrosion resistance and creep strength, ideal for high-temperature applications in boilers, superheaters, and heat exchangers in power plants and petrochemical industries.

ASTM A213 T9 Tubes Seamless Alloy Steel Tubes Chrome Moly Tubes Corrosion Resistance +2 More

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ASTM A213 T9 Seamless Alloy Steel Pipe

High-temperature Boiler Tubing

ASTM A213 T9 Tubes Seamless Alloy Steel Tubes Chrome Moly Tubes Corrosion Resistance +2 More

Download

ASTM A213 T9 Seamless Alloy Steel Pipe is designed for high-temperature service in boilers, superheaters, and heat exchangers. Composed of 8.00–10.00% chromium and 0.90–1.10% molybdenum, this alloy provides excellent strength and corrosion resistance under elevated temperatures.

Manufactured according to ASTM A213 and ASME SA213 standards, T9 pipes undergo rigorous quality control, including tensile, hardness, and hydrostatic testing, ensuring reliability in demanding environments. The seamless construction enhances durability, reducing the risk of failure under thermal stress.

These pipes are suitable for bending, flanging, and welding, with recommended preheating and post-weld heat treatment to maintain structural integrity. Available in various sizes and wall thicknesses, they cater to diverse industrial requirements.

Applications: Power plants, petrochemical industries, and other sectors requiring high-temperature and pressure-resistant piping systems.

ASTM A213 T9 Chemical Composition (%)
Element	Composition
Carbon (C)	≤ 0.15
Manganese (Mn)	0.30–0.60
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.025
Silicon (Si)	0.25–1.00
Chromium (Cr)	8.00–10.00
Molybdenum (Mo)	0.90–1.10

ASTM A213 T9 Mechanical Properties
Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 30%
Hardness	≤ 179 HB

What are ASTM A213 Alloy Tubes?

ASTM A213 is a specification for seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes. These tubes are designed to withstand high temperatures and pressures, making them ideal for use in power generation and petrochemical applications.

Common grades include T91, T92, T11, T12, and T22, each offering unique properties for specific applications. The tubes are manufactured to stringent quality standards, ensuring reliability and performance in demanding environments.

High-Temperature Resistance

Withstands thermal shock and operates at temperatures up to 650°C for grades like T91 and T92.

Corrosion Resistance

Excellent oxidation and corrosion resistance in aggressive chemical and petrochemical environments.

Seamless Construction

Seamless tubing ensures high structural integrity under pressure and temperature variations.

Superior Strength

Improved creep strength and mechanical performance for long-term use in power plants.

Versatile Applications

Suitable for HRSGs, heat exchangers, boilers, and instrumentation systems in multiple industries.

Easy Fabrication

Supports efficient welding and forming for field installation and system integration.

ASTM A213 specifies seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes designed for high-temperature service.

It covers alloy steel tubes such as grades P1, P2, P5, P9, P11, P22, P91, and stainless steel grades like TP304, TP316, TP321, etc.

Used primarily in boilers, superheaters, heat exchangers, power plants, petrochemical industries, refineries, and pressure vessels operating at elevated temperatures.

Typically seamless manufacturing by hot extrusion or hot rolling, followed by heat treatment to ensure proper mechanical properties.

They are suitable for continuous operation in temperatures typically ranging from ambient up to 700°C or higher, depending on the alloy grade.

The tubes must pass strict chemical composition, mechanical properties, dimensional tolerances, and non-destructive testing (NDT) as per the ASTM A213 standard.

Yes, these tubes are designed to withstand high pressures found in boilers and heat exchangers.

Tests include tensile testing, hardness testing, flattening, flaring, and sometimes hydrostatic or nondestructive testing such as ultrasonic or eddy current.

ASTM A213 tubes come in various outer diameters, wall thicknesses, and lengths to fit different industrial requirements.

Yes, but welding procedures must comply with recommended guidelines for each alloy grade to avoid cracking or property degradation.

They offer superior high-temperature strength, corrosion resistance, and proven reliability in demanding industrial applications.

Through alloying elements such as chromium, molybdenum, and nickel, which form protective oxide layers against oxidation and chemical attack.

Yes, stainless steel variants such as TP304, TP316 are included in ASTM A213 for corrosion-resistant applications.

Usually supplied in a fully heat-treated condition to meet mechanical property requirements.

Yes, manufacturers can provide custom dimensions, heat treatments, or surface finishes to meet specific client needs.

ASTM A213 mainly covers tubes for boilers and heat exchangers, often seamless and heat-treated; ASTM A335 focuses more on seamless ferritic alloy steel pipes for high-temperature service, especially in power plants.

Stored in dry, covered areas to prevent corrosion and physical damage before installation.

Standards like ASTM A269, ASTM A192, and ASTM A210 are related and sometimes cross-referenced depending on the application.

Applications of ASTM A213 T9 Seamless Alloy Steel Pipe

ASTM A213 T9 Seamless Alloy Steel Pipe are widely used in various industries due to their excellent high-temperature and high-pressure performance.

Power Generation Plants

Utilized in boilers, superheaters, and reheaters within steam power plants due to their high-temperature resistance and durability.

Petrochemical Facilities

Employed in refineries and chemical plants for transporting high-temperature fluids and gases, ensuring safety and efficiency.

Heat Exchangers

Ideal for use in heat exchangers where thermal stability and corrosion resistance are critical under fluctuating temperatures.

Boilers and Superheaters

Commonly used in high-pressure boilers and superheaters, offering excellent performance under extreme thermal conditions.

Oil and Gas Industry

Applied in the extraction and processing of oil and gas, handling high-pressure and high-temperature fluids effectively.

Chemical Processing Equipment

Suitable for equipment in chemical industries where resistance to corrosive substances and high temperatures is essential.

ASTM A213 T9 Seamless Alloy Steel Pipe

ASTM A213 T9 Seamless Alloy Steel Pipe

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