ASTM A213 T22 Tubes Manufacturer and Supplier

ASTM A213 T22 tubes are seamless 2.25Cr-1Mo chrome-moly alloy steel tubes intended for high-temperature boiler, superheater, and heat-exchanger applications. The T22 grade (UNS K21590) designates a low-alloy steel with 1.90–2.60% chromium and 0.87–1.13% molybdenum, specifically formulated to endure long-term high-temperature operation in boiler, superheater, and heat-exchanger systems. These tubes are manufactured in accordance with ASTM A213 / ASME SA-213.

The higher chromium and molybdenum content in T22 compared to lower-Cr grades such as T11 gives this alloy superior creep strength and oxidation resistance at temperatures approaching 600 oC. Minimum tensile strength is 415 MPa (60 ksi), yield strength is 205 MPa (30 ksi), and maximum hardness is 163 HB.

Sachiya Steel is a leading manufacturer and supplier of ASTM A213 T22 seamless alloy steel tubes from our base in Mumbai, India. Founded in the year 2005, we stock and export these tubes in Grade T22, a 2.25Cr-1Mo chrome-molybdenum ferritic alloy. We carry outside diameters from 6.35 mm to 101.6 mm, wall thicknesses from 0.4 mm to 12.7 mm, and lengths up to 25 metres in cold-drawn form. Both hot-finished and cold-drawn seamless tubes are available from our warehouse.

T22 boiler tubes comply with ASME BPVC Section I and Section VIII for elevated-temperature pressure service. Primary industries include power generation, oil and gas refining, and petrochemical processing. Sachiya Steel holds ISO 9001, ISO 14001, and ISO 45001 certifications, and we provide mill test certificates to EN 10204 3.1/3.2 with every shipment.

This page details the following sections for the SA213 T22 tube

Specifications
Pricing
Chemical Composition
Mechanical Properties
Equivalent Designation
Industrial Applications
Grade Comparison
Shipping & Packaging
Frequently Asked Questions

ASTM A213 / ASME SA-213 T22 Tube Specifications

The specifications of ASTM A213 T22 tubes, including standards, surface finish and forms, are listed below.

Parameter	Details
Standards	ASTM A213 / ASME SA-213
Size Range	1/8" NB to 5" NB (10.3 mm OD to 127 mm OD)
Wall Thickness	0.4 mm to 12.7 mm
Length	Single Random, Double Random, or Cut Length (Up to 25 meters)
End Type	Plain End (PE), Bevelled End (BE), Threaded
Surface Finish	Black, Pickled & Oiled, Bright Annealed, Shot Blasted
Form	Seamless (Hot Finished / Cold Drawn)

ASTM A213 T22 Tube Sizes and Dimensions

The size and dimensions of ASTM A213 T22 Tube are listed in the table given below.

Parameter	Details
Outer Diameter (OD)	6.35 mm to 101.6 mm
Wall Thickness	0.4 mm to 12.7 mm
Schedules	SCH 20 to SCH XXS
Length	Custom lengths up to 25 metres (cold-drawn form)

Outside Diameter and Tolerances

The ASTM A213 T22 Tube outside diameter and tolerance are listed in the table given below.

Manufacturing Process	OD Range	Tolerance
Cold Drawn	Below 25.4 mm	± 0.10 mm
Hot Rolled	Up to 101.6 mm	+0.40 mm / -0.80 mm

Wall Thickness and Tolerances

The wall thickness and tolerances of ASTM A213 T22 Tube is specified in the table given below.

Manufacturing Process	OD Range	Wall Thickness Tolerance
Cold Drawn	Up to 38.1 mm	+20% / -0
Hot Finished	Varies (as per wall)	+28% to +40% / -0

ASTM A213 T22 Tube Price

ASTM A213 T22 tube prices range from ₹90 to ₹350 per kilogram in India and $1 to $5 per kilogram, depending on size, schedule, quantity, and mill origin. Smaller diameters command higher per-ton pricing due to manufacturing complexity. Contact our sales team for a current quotation.

Chemical Composition of ASTM A213 T22 Tubes

The chemical composition of ASTM A213 T22 Tubes, along with their proportions, is listed in the table below. Chromium forms a stable oxide layer that resists steam-side oxidation and magnetite scale formation in boiler tubing. Molybdenum strengthens the ferritic matrix against creep deformation under sustained thermal loads.

CarbonC

0.05 - 0.15

ManganeseMn

0.30 - 0.60

PhosphorusP

0.025 max

SulfurS

0.025 max

SiliconSi

0.50 max

ChromiumCr

1.90 - 2.60

MolybdenumMo

0.87 - 1.13

Mechanical Properties of ASTM A213 T22 Tubes

The mechanical properties of ASTM A213 T22 tubes, including tensile strength and elongation, are listed below. The 30% elongation figure confirms that T22 tubes retain sufficient ductility for cold bending and tube expansion during boiler assembly

415/60

MPa (ksi)

Tensile Strength (min)

205/30

MPa (ksi)

Yield Strength (min)

Elongation in 2" (min)

163

Hardness (max)

Property	Value
Tensile Strength (min)	415 MPa (60 ksi)
Yield Strength (min)	205 MPa (30 ksi)
Elongation in 2" (min)	30%
Hardness (max)	163 HB

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Equivalent Designations

ASTM A213 T22 is known by several international designations. The table below lists the most common equivalents for global procurement.

Standard	Designation
UNS	K21590
EN 10216-2	10CrMo9-10
W.Nr.	1.7380
JIS G3462	STBA 24
GB 5310	12Cr2MoG
BS 3059 Part 2	Grade 622
NFA 49-213	TU 10CD9.10

ASTM A213 T22 Tube Industrial Applications

ASTM A213 T22 tubes are used in boilers, superheaters, reheaters, and heat exchangers operating at temperatures up to approximately 600°

Power Generation and Boiler Systems

T22 chrome moly tubes are the standard material for superheater and reheater elements in subcritical and some supercritical power plant boilers.

Oil and Gas Refineries

Alloy T22 tubes act as vital components in refinery process heaters and hydrogen-service heat exchangers, delivering consistent, dependable performance at elevated operating temperatures.

Petrochemical and Chemical Plants

SA-213 T22 tubes are used in fired heaters, waste heat boilers, and reboiler bundles within petrochemical complexes.

ASTM A213 T22 vs T11 vs T91 Grade Comparison

The table below compares Grade T11, T22 and Grade T91 in terms of maximum service temperatures and creep resistance.

Property	T11 (1.25Cr-0.5Mo)	T22 (2.25Cr-1Mo)	T91 (9Cr-1Mo-V)
Chromium	1.00 - 1.50%	1.90 - 2.60%	8.00 - 9.50%
Molybdenum	0.44 - 0.65%	0.87 - 1.13%	0.85 - 1.05%
Max Service Temp (approx.)	565 °C	600 °C	650 °C
Creep Resistance	Lowest	Intermediate	Highest
Relative Cost	Lowest	Mid-range	Highest

Shipping & Packaging

Heavy-duty wooden boxes Packing

Export Packaging Standard

We strictly follow seaworthy export handling standards to protect ASTM A213 T22 Tubes from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

Heavy-duty wooden boxes with moisture barrier lining
HDPE stretch film wrapping on all bundles
Plastic end caps on threaded and plain-end pipes
Silica gel desiccants to minimize moisture exposure
ISPM-15 fumigated wooden packaging for export

Tube Bundle Yard Staging

Container End-Cap Protection

Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies Alloy steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

USA
Canada

Frequently Asked Questions

What is the ASTM A213 T22 Tube Specification?+

ASTM A213 T22 covers seamless ferritic alloy steel tubes for boiler, superheater, and heat-exchanger service. T22 is a 2.25Cr-1Mo grade (UNS K21590) with a minimum tensile strength of 415 MPa, a yield of 205 MPa, and 30% elongation.

What is the hardness of ASTM A213 T22 Tubes?+

The maximum allowable hardness for ASTM A213 T22 tubes is 163 HB (Brinell) per the ASTM A213 specification.

What is the difference between T11 and T22 Tube material?+

T11 is a 1.25Cr-0.5Mo alloy suitable for use at temperatures up to around 565°C, whereas T22 is a 2.25Cr-1Mo alloy intended for service up to roughly 600°C. Due to its higher chromium and molybdenum content, T22 offers better resistance to creep and oxidation.

What is the temperature range for SA213 T22 tubes?+

ASTM A213 / ASME SA-213 T22 tubes are designed for continuous service up to approximately 600°C (1100 to 1200 °F). It maintains good creep strength and oxidation resistance throughout that range.

What welding electrode is used for T22 Tube Material?+

T22 tubes are welded using ER90S-B3 (GTAW/TIG filler) and E9018-B3 (SMAW electrode) per AWS A5.5/A5.28. Post-weld heat treatment at 675 to 730 °C is required after welding T22 material.