ASTM A213 T24 Seamless Alloy Steel Tube

High-temperature Ferritic Tube

Astm a213 t24 seamless alloy steel tubes provide superior high-temperature strength and oxidation resistance, ideal for boiler and heat exchanger applications in power plants and petrochemical industries.

ASTM A213 T24 Seamless Alloy Steel Tube Ferritic Alloy Tube High-Temperature Tube +2 More

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ASTM A213 T24 Seamless Alloy Steel Tube

High-temperature Ferritic Tube

ASTM A213 T24 Seamless Alloy Steel Tube Ferritic Alloy Tube High-Temperature Tube +2 More

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ASTM A213 T24 Seamless Alloy Steel Tube is a ferritic alloy steel tube engineered for high-temperature service, offering excellent oxidation resistance and mechanical strength. It is widely used in boilers, superheaters, and heat exchangers in power generation, petrochemical, and industrial applications.

The alloy contains approximately 2.25% chromium and 1% molybdenum, enhancing its high-temperature corrosion resistance compared to carbon steel tubes. Its seamless construction ensures durability under high pressure and temperature environments, making it suitable for demanding industrial conditions.

Manufactured according to ASTM A213/ASME SA213 standards, these tubes undergo rigorous quality testing including tensile strength, hardness, and hydrostatic tests. Available in a variety of sizes and wall thicknesses, ASTM A213 T24 tubes offer versatile solutions for heat-resistant piping systems.

The tubes demonstrate excellent creep strength and oxidation resistance up to temperatures of about 600°C. They are also suitable for welding, bending, and forming, facilitating installation and fabrication in complex piping layouts.

ASTM A213 T24 Chemical Composition (%)
Element	Composition Range
Carbon (C)	0.05 - 0.15
Manganese (Mn)	0.30 - 0.60
Phosphorus (P)	≤0.025
Sulfur (S)	≤0.025
Silicon (Si)	0.40 - 0.60
Chromium (Cr)	2.00 - 2.50
Molybdenum (Mo)	0.85 - 1.10

ASTM A213 T24 Mechanical Properties
Property	Typical Value
Tensile Strength (MPa)	415 - 585
Yield Strength (MPa)	205 - 310
Elongation (%)	≥20
Hardness (HB)	≤200

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.

Benefits of ASTM A213 Alloy Tubes

Key advantages that make ASTM A213 alloy tubes a preferred choice in high-temperature and corrosive environments.

High Temperature Resistance

Maintains structural integrity under extreme heat, ideal for boilers, heat exchangers, and superheaters.

Superior Corrosion Resistance

Chromium and molybdenum ensure excellent resistance to oxidation and chemical attack in aggressive media.

Enhanced Mechanical Strength

Offers high tensile and yield strength, ensuring safe performance under high pressure and temperature.

Extended Service Life

Durable construction and corrosion resistance extend operational life and minimize maintenance downtime.

Excellent Dimensional Accuracy

Precision manufacturing ensures uniform wall thickness and surface finish, optimizing heat transfer and fit.

Versatility Across Applications

Widely used in power generation, petrochemical, and thermal processing industries due to its performance and reliability.

Technical Specifications

Dimensions and performance data for ASTM A213 tubes and pipes.

Chemical Composition (% by weight) of Different Grades
Grade	UNS	C	Mn	P	S	Si	V	B	Nb	N	Al	W
T2	K11547	0.10–0.20	0.30–0.61	0.025	0.025B	0.10–0.30	–	–	–	–	–	–
T5	K41545	0.15	0.30–0.60	0.025	0.025	0.5	–	–	–	–	–	–
T5b	K51545	0.15	0.30–0.60	0.025	0.025	1.00–2.00	–	–	–	–	–	–
T5c	K41245	0.12	0.30–0.60	0.025	0.025	0.5	–	–	–	–	–	–
T9	K90941	0.15	0.30–0.60	0.025	0.025	0.25–1.00	–	–	–	–	–	–
T11	K11597	0.05–0.15	0.30–0.60	0.025	0.025	0.50–1.00	–	–	–	–	–	–
T12	K11562	0.05–0.15	0.30–0.61	0.025	0.025B	0.5	–	–	–	–	–	–
T17	K12047	0.15–0.25	0.30–0.61	0.025	0.025	0.15–0.35	0.15	–	–	–	–	–
T21	K31545	0.05–0.15	0.30–0.60	0.025	0.025	0.50–1.00	–	–	–	–	–	–
T22	K21590	0.05–0.15	0.30–0.60	0.025	0.025	0.5	–	–	–	–	–	–
T23	K40712	0.04–0.10	0.10–0.60	0.03	0.01	0.5	0.20–0.30	0.0010–0.006	0.02–0.08	0.015	0.03	1.45–1.75
T24	K30736	0.05–0.10	0.30–0.70	0.02	0.01	0.15–0.45	0.20–0.30	0.0015–0.007	–	0.012	0.02	–
T36	K21001	0.10–0.17	0.80–1.20	0.03	0.025	0.25–0.50	0.02	–	0.015–0.045	0.02	0.05	–
T91	K90901	0.07–0.14	0.30–0.60	0.02	0.01	0.20–0.50	0.18–0.25	–	0.06–0.10	0.030–0.07	0.02	–
T92	K92460	0.07–0.13	0.30–0.60	0.02	0.01	0.5	0.15–0.25	0.001–0.006	0.04–0.09	0.030–0.07	0.02	1.5–2.00
T122	K91271	0.07–0.14	0.7	0.02	0.01	0.5	0.15–0.30	0.0005–0.005	0.04–0.10	0.040–	0.02	1.50–2.50
T911	K91061	0.09–0.13	0.30–0.60	0.02	0.01	0.10–0.50	0.18–0.25	0.0003–0.006	0.06–0.10	0.040–0.09	0.02	0.90–1.10

Mechanical Properties of ASTM A213M-09
Grade	Tensile Strength (MPa)	Yield Point (MPa, min)	Elongation (%, min)	Impact (J, min)	Hardness (HRB, max)
A213 T2 / SA213 T2	≥415	205	–	–	85
A213 T11 / SA213 T11	≥415	205	–	–	85
A213 T22 / SA213 T22	≥415	205	–	–	85
A213 T23 / SA213 T23	≥510	400	20	–	97
A213 T24 / SA213 T24	≥585	415	20	–	25
A213 T91 / SA213 T91	≥585	415	20	–	25
A213 T911 / SA213 T911	≥620	440	20	–	25
A213 T92 / SA213 T92	≥620	440	20	–	25
A213 T122 / SA213 T122	≥620	400	20	–	25
TP304H	≥515	205	35	–	90
TP316H	≥515	205	35	–	90
TP321H	≥515	205	35	–	90
TP347H	≥515	205	35	–	90
S30432	≥590	235	35	–	95
TP310HCbN	≥655	295	30	–	100

Notes:

A. Values are maximums unless otherwise specified as a range or minimum.
B. It is permissible to order T2 and T12 with a sulfur content of 0.045 max. See Clause 16.3.
C. Alternatively, minimum hardness of 275 HV may be used in lieu of the elongation ratio. This applies after austenitizing and before tempering.
Hardness Testing: Two samples per heat treatment lot must be tested, and results recorded in the material test report.

Heat Treatment and Grain Size Requirements^A
Grade	UNS Number	Heat Treat Type	Austenitizing / Solutioning Temp. °F [°C]	Cooling Media	Annealing / Tempering Temp. °F [°C]	ASTM Grain Size
T2	K11547	Full or Isothermal Anneal	–	–	–	–
		Normalize and Temper	–	–	–	–
		Subcritical Anneal	–	–	1200 to 1350 [650 to 730]	–
T5	K41545	Full or Isothermal Anneal	–	–	–	–
		Normalize and Temper	–	–	1250 [675]	–
T23	K40712	Normalize and Temper	1900–1975 [1040–1080]	–	1350–1470 [730–800]	–
T91	K90901	Normalize and Temper	1900–1975 [1040–1080]	–	1350–1470 [730–800]	–

Notes:

^A Heat treatment temperatures are as per ASTM A213M-09 standard. If only a minimum is shown, it is not a range.
“–” indicates not specified or not required in the standard.
Always refer to official standard for complete context.

Size Range & Dimensions for ASTM A213 Tubes
Parameter	Range	Standard
Inside Diameter	1/8" to 5"	3.2 mm to 127 mm
Wall Thickness	0.015" to 0.500"	0.4 mm to 12.7 mm
Length	5–7 m / 9–13 m	SRL / DRL
Schedule	40 to 160	STD, XS, XXS

Performance Parameters
Property	Value	Unit
Max Service Temperature	650	°C
Tensile Strength	415–690	MPa
Yield Strength	205–520	MPa
Elongation	20–30	%

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 T24 Seamless Alloy Steel Tube

ASTM A213 T24 Seamless Alloy Steel Tube 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 T24 Seamless Alloy Steel Tube

ASTM A213 T24 Seamless Alloy Steel Tube

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