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Specification

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Chemical Composition

ASTM A213 Alloy Steel T9 Tubes are seamless ferritic alloy steel tubes manufactured with approximately 9% chromium and 1% molybdenum for high-temperature service. Also known as ASTM A213 Gr T9 Alloy Steel Tubes or ASME SA213 Grade T9 Seamless Tubes, they are widely used in boilers, superheaters, heat exchangers, power plants, petrochemical facilities, and refineries due to their excellent oxidation resistance, creep strength, corrosion resistance, and long service life under elevated temperatures.

Detailed Information

ASME SA213 Grade T9 Seamless Tube | UNS K90941 Alloy Steel Tubes

We are a trusted ASTM A213 T9 tube supplier, offering premium-quality seamless alloy steel tubing for demanding industrial applications. As an experienced ASTM A213 Gr T9 alloy steel tube manufacturer, we supply products that comply with ASTM and ASME standards while meeting the strict quality expectations of global industries.

Our ASTM A213 Alloy Steel T9 Tubes are manufactured using high-grade chromium-molybdenum alloy steel, providing excellent mechanical strength, creep resistance, and oxidation resistance at elevated temperatures. These properties make them ideal for boilers, superheaters, reheaters, condensers, pressure vessels, and heat exchangers operating in harsh environments.

As a reliable ASME SA213 T9 tube exporter, we supply tubes in multiple dimensions, wall thicknesses, and finishes for domestic as well as international projects. Every tube undergoes rigorous quality inspections, dimensional verification, and testing to ensure dependable performance throughout its service life.

Whether you require SA213 T9 seamless tubes, ASTM A213 T9 high temperature seamless tubes, or ASTM A213 T9 cold drawn seamless tubing, we can provide customized solutions suitable for your project requirements.

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New York City, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, Austin, Jacksonville, Fort Worth, Columbus, Charlotte, San Francisco, Indianapolis, Seattle, Denver, Washington, Boston, El Paso, Nashville, Detroit, Oklahoma City, Portland, Las Vegas, Memphis, Louisville, Baltimore, Milwaukee, Albuquerque, Tucson, Fresno, Mesa, Sacramento, Atlanta, Kansas City, Colorado Springs, Omaha, Raleigh, Miami, Long Beach, Virginia Beach, Oakland, Minneapolis, Tulsa, Tampa, Arlington, New Orleans, Wichita, Bakersfield, Cleveland, Aurora, Anaheim, Honolulu, Santa Ana, Riverside, Corpus Christi, Lexington, Henderson, Stockton, Saint Paul, Cincinnati, St. Louis, Pittsburgh, Greensboro, Lincoln, Anchorage, Plano, Orlando, Irvine, Newark, Durham, Chula Vista, Toledo, Fort Wayne, St. Petersburg, Laredo, Jersey City, Chandler, Madison, Lubbock, Scottsdale, Reno, Buffalo, Gilbert, Glendale, North Las Vegas, Winston-Salem, Chesapeake, Norfolk, Fremont, Garland, Irving, Hialeah, Richmond, Boise, Spokane, Baton Rouge, Tacoma, San Bernardino, Modesto, Fontana, Des Moines, Moreno Valley, Santa Clarita, Fayetteville, Birmingham, Oxnard, Rochester, Port St. Lucie, Grand Rapids, Huntsville, Salt Lake City, Frisco, Yonkers, Amarillo, Glendale, Huntington Beach, McKinney, Montgomery, Augusta, Aurora, Akron, Little Rock, Tempe, Columbus, Overland Park, Grand Prairie, Tallahassee, Cape Coral, Mobile, Knoxville, Shreveport, Worcester, Ontario, Vancouver, Sioux Falls, Chattanooga, Brownsville, Fort Lauderdale, Providence, Newport News, Rancho Cucamonga, Santa Rosa, Peoria, Oceanside, Elk Grove, Salem, Pembroke Pines, Eugene, Garden Grove, Cary, Fort Collins, Corona, Springfield, Jackson, Alexandria, Hayward, Clarksville, Lakewood, Lancaster, Salinas, Palmdale, Hollywood, Springfield, Macon, Kansas City, Sunnyvale, Pomona, Killeen, Escondido, Pasadena, Naperville, Bellevue, Joliet, Murfreesboro, Midland, Rockford, Paterson, Savannah, Bridgeport, Torrance, McAllen, Syracuse, Surprise, Denton, Roseville, Thornton, Miramar, Pasadena, Mesquite, Olathe, Dayton, Carrollton, Waco, Orange, Fullerton, Charleston, West Valley City, Visalia, Hampton, Gainesville, Warren, Coral Springs, Cedar Rapids, Round Rock, Sterling Heights, Kent, Columbia, Santa Clara, New Haven, Stamford, Concord, Elizabeth, Athens, Thousand Oaks, Lafayette, Simi Valley, Topeka, Norman, Fargo, Wilmington, Abilene, Odessa, Columbia, Pearland, Victorville, Hartford, Vallejo, Allentown, Berkeley, Richardson, Arvada, Ann Arbor, Rochester, Cambridge, Sugar Land, Lansing, Evansville, College Station, Fairfield, Clearwater, Beaumont, Independence, Provo, West Jordan, Murrieta, Palm Bay, El Monte, Carlsbad, North Charleston, Temecula, Clovis, Springfield, Meridian, Westminster, Costa Mesa, High Point, Manchester, Pueblo, Lakeland, Pompano Beach, West Palm Beach, Antioch, Everett, Downey, Lowell, Centennial, Elgin, Richmond, Peoria, Broken Arrow, Miami Gardens, Billings, Jurupa Valley, Sandy Springs, Gresham, Lewisville, Hillsboro, Ventura, Greeley, Inglewood, Waterbury, League City, Santa Maria, Tyler, Davie, Lakewood, Daly City, Boulder, Allen, West Covina, Sparks, Wichita Falls, Green Bay, San Mateo, Norwalk, Rialto, Las Cruces, Chico, El Cajon, Burbank, South Bend, Renton, Vista, Davenport, Edinburg, Tuscaloosa, Carmel, Spokane Valley, San Angelo, Vacaville, Clinton, Bend, Woodbridge.

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ASTM A213 T9 Alloy Steel Seamless Tube Specifications

Specifications	:	ASTM A213 Gr. T9
Dimensions	:	ASTM
Size	:	1/8″NB TO 30″NB IN
Schedule	:	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type	:	Seamless
Length	:	Single Random, Double Random & Cut Length
Form	:	Round, Square, Rectangular, Hydraulic Etc
End	:	Plain End, Beveled End, Treaded

T9 Alloy Steel Seamless Tubes Chemical Composition

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Mo, %
0.15 max	0.30-0.60	0.025 max	0.025 max	0.25-1.00	8.0-10.0	0.90-1.10

Alloy T9 Tubes Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS
A213 T9	1.7386	S50400

Alloy Steel UNS S50400 Seamless Tubes Mechanical Properties

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
415 min	205 min	30 min	179 max

Alloy Steel A213 T9 Seamless Tubing Tolerance

Outside Diameter	OD Tolerance	WT Tolerance	Ovality Tolerance	Cut Length Tolerance
OD≤ 12, 7 mm	± 0, 13 mm	± 15 %	–	+ 3, 18 mm, – 0 mm
12, 7 mm < OD ≤ 38, 1 mm	± 0, 13 mm	± 10 %	max, 1, 65 mm	+ 3, 18 mm, – 0 mm
38, 1 mm < OD ≤ 88, 9 mm	± 0, 25 mm	± 10 %	max, 2, 41 mm	+ 4, 76 mm, – 0 mm

Alloy Steel T9 Outside Diameter

Hot rolled	Outside Diameter, mm	Tolerance, mm
	OD≤101.6	+0.4/-0.8
	101.6＜OD≤190.5	+0.4/-1.2
	190.5＜OD≤228.6	+0.4/-1.6
Cold Drawn	Outside Diameter, mm	Tolerance, mm
	OD＜25.4	±0.10
	25.4≤OD≤38.1	±0.15
	38.1＜OD＜50.8	±0.20
	50.8≤OD＜63.5	±0.25
	63.5≤OD＜76.2	±0.30
	76.2≤OD≤101.6	±0.38
	101.6＜OD≤190.5	+0.38/-0.64
	190.5＜OD≤228.6	+0.38/-1.14

Grade T9 Tubing Wall thickness

Hot rolled	Outside Diameter, mm	Tolerance, %
	OD≤101.6, WT≤2.4	+40/-0
	OD≤101.6, 2.4＜WT≤3.8	+35/-0
	OD≤101.6, 3.8＜WT≤4.6	+33/-0
	OD≤101.6, WT>4.6	+28/-0
	OD>101.6, 2.4＜WT≤3.8	+35/-0
	OD>101.6, 3.8＜WT≤4.6	+33/-0
	OD>101.6, WT>4.6	+28/-0
Cold Drawn	Outside Diameter, mm	Tolerance, %
	OD≤38.1	+20/-0
	OD>38.1	+22/-0

Types of Alloy Steel T9 Tube

Alloy Steel T9 Tubes	T9 Alloy Steel A213 Tube
Alloy Steel SA213 grade T9 Tubes	Alloy Steel SA213 T9 Alloy Steel Seamless Tube
High-Pressure T9 Boiler Tube	ASME SA213 T9 Alloy Steel Rectangular Tube
SA213 T9 Seamless Alloy Tube	Alloy Steel UNS K90941 Heater Tube
ASME SA213 T9 Chrome Moly Seamless Tube	IBR Alloy Steel T9 Tubes
Alloy Steel T9 Custom Tubes	ASME SA / Alloy Steel SA213 T9 Tubes
Alloy Steel Grade T9 Round Tube	SA213 T9 Tubes Suppliers
Alloy A213 T9 Seamless Square Tube	ASME SA213 T9 Alloy Steel Seamless Tube
AISI T9 ERW Tube	Alloy Steel SA213 T9 Tubes
Alloy steel SA 199 T9 material	Alloy-Steel Heat-Exchanger Tube
Alloy Steel ASME SA213 T9 square cylinder Tube	High Pressure T9 Boiler Tube
Alloy Steel SA213 T9 Chrome Moly Tubing	Alloy Steel SA213 Grade T9 Hydraulic Tube
Alloy Steel T9 Cold Rolled Coiled Tube	Alloy Steel T9 ERW Tubes
Alloy Steel SA213 T9 EFW Tubes,	Alloy Steel SA213 T9 Round Tubes
Alloy Steel SA213 T9 Square Tubes	ASTM A213 T9 Alloy Steel High Pressure Tube
ASTM SA213m T9 square pipe	Alloy Steel SA213 T9 Electropolish Tube
Alloy Steel SA213 T9 Custom Tubes	SA213 T9 Alloy Steel Tube
ASTM A213 T9 Tube Material	ASTM A213 T9 Tubes
Sa213 T9 Thermal Conductivity Tubes	ASTM A213 T9 Tubing
Astm A213 Grade T9 Tubes	Astm A213 T9 Tubes
Sa213 T9 Material	Asme Sa213 Grade T9 Tubes
Astm Sa213 T9 Tubes	Astm A213 Gr T9 Tubes
Sa213 T9 Tubes	Tubo A213 T9 Tubes
Sa213 T9 Seamless Alloy Tube	ASTM A213 T9 Boiler Tube
Astm A213 T9 Tubes	Sa213 T9 Tubing
SA213 T9 Tubes	ASTM A213 T9 Steel Tubes
Sa 213 Gr T9 Tubes	Sa213 T9 Tubes
Asme Sa213 T9 Tubes	ASTM A213 T9 Boiler Tube

Features & Benefits of ASTM A213 Grade T9 Alloy Steel Tubes

Our ASTM A213 Alloy Steel T9 Tubes offer several advantages for high-temperature industrial systems:

Excellent creep resistance at elevated temperatures
Superior oxidation resistance
High tensile and yield strength
Outstanding resistance to thermal fatigue
Excellent weldability and fabrication properties
Long operational life in severe environments
Good resistance to steam oxidation
Reliable performance in pressure equipment
Tight dimensional tolerances
Smooth internal and external surface finish

These benefits make ASTM A213 T9 seamless tubing a preferred choice for critical thermal processing equipment.

Applications of ASTM A213 T9 Tubes

Because of their exceptional heat resistance and mechanical strength, ASTM A213 Grade T9 alloy steel tubes are widely used in:

Thermal Power Plants
Nuclear Power Plants
Petrochemical Industries
Oil & Gas Processing Plants
Refineries
Chemical Processing Plants
Fertilizer Industries
Boiler Manufacturing
Heat Exchanger Manufacturing
Superheater Systems
Pressure Vessel Fabrication
Steam Piping Systems
Energy Generation Plants
Industrial Furnace Equipment

SA213 T9 Tube Weight

Size NPS	Pi O.D.	Wall Thickness	Pipe I.D.	Weight per Foot	Standard to XXHY	Schedule Pipe #	Section Modulus	Gallon Capacity Per Linear Foot
1/2	0.84	0.109	0.622	0.85	STD	40	.0407	.0158
		0.147	0.546	1.09	XHY	80	.0478	.0122
		0.188	0.464	1.31		160	.0528	.0088
		0.294	0.252	1.72	XXHY		.0577	.0026
3/4	1.05	0.113	0.824	1.13	STD	40	.0705	.0277
		0.154	0.742	1.48	XHY	80	.0853	.0225
		0.219	0.612	1.95		160	.1006	.0153
		0.308	0.434	2.44	XXHY		.1103	.0077
1	1.315	0.133	1.049	1.68	STD	40	.1328	.0449
		0.179	0.957	2.17	XHY	80	.1606	.0374
		0.250	0.815	2.85		160	.1904	.0271
		0.358	0.599	3.66	XXHY		.2136	.0146
1 1/4	1.66	0.140	1.380	2.27	STD	40	.2346	.0777
		0.191	1.278	3.00	XHY	80	.2913	.0666
		0.250	1.160	3.77		160	.3421	.0549
		0.382	0.896	5.22			.4110	.0328
1 1/2	1.90	0.145	1.610	2.72	STD	40	.3262	.1058
		0.200	1.500	3.63	XHY	80	.4118	.0918
		0.281	1.338	4.86		160	.5079	.0730
		0.400	1.100	6.41			.5977	.0494
2	2.375	0.109	2.157	2.64		10	.4205	.1898
		0.154	2.067	3.66	STD	40	.5606	.1743
		0.218	1.939	5.03	XHY	80	.7309	.1534
		0.250	1.875	5.68			.8045	.1434
		0.281	1.813	6.29			.8666	.1344
		0.344	1.687	7.47		160	.9806	.1161
		0.436	1.503	9.04	XXHY		1.1043	.0922
2 1/2	2.875	0.120	2.635	3.53		10	.6870	.2833
		0.203	2.469	5.80	STD.	40	1.0640	.2487
		0.216	2.443	6.14			1.1169	.2435
		0.250	2.375	7.02			1.2468	.2301
		0.276	2.323	7.67	XHY	80	1.3386	.2202
		0.375	2.125	10.02		160	1.6371	.1842
		0.552	1.771	13.71	XXXHY		1.9971	.1280
3	3.50	0.120	3.260	4.34			1.0411	.4336
		0.156	3.188	5.58			1.3122	.4147
		0.172	3.156	6.12			1.4265	.4064
		0.188	3.124	6.66			1.5342	.3984
		0.216	3.068	7.58	STD.	40	1.7241	.3840
		0.250	3.000	8.69			1.9372	.3672
		0.281	2.938	9.67			2.1207	.3521
		0.300	2.900	10.26	XHY	80	2.2253	.3431
		0.438	2.624	14.34		160	2.8774	.2811
		0.600	2.300	18.6	XXHY		3.4243	.2158
3 1/2	4.0	0.120	3.760	4.98		10	1.3776	.5768
		0.226	3.548	9.12	STD.	140	2.3939	.5136
		0.250	3.500	10.02			2.6001	.4998
		0.281	3.438	11.17			2.8562	.4821
		0.318	3.364	12.52	XHY	80	3.1400	.4617
		0.636	2..728	22.87	XXHY		4.8795	.3085
4	4.5	0.120	4.260	5.62		10	1.7612	.7404
		0.156	4.188	7.24			2.2354	.7156
		0.188	4.124	8.67			2.6296	.6942
		0.203	4.094	9.32			2.8173	.6838
		0.219	4.062	10.02			3.0184	.6725
		0.237	4.026	10.80	STD.	40	3.2145	.6613
		0.250	4.000	11.36			3.3611	.6528
		0.281	3.938	12.67		60	3.7021	.6326
		0.312	3.876	13.97			4.0273	.6126
		0.337	3.826	15.00	XHY	80	4.2713	.5972
		0.438	3.624	19.02		120	5.1790	.5361
		0.531	3.438	22.53		160	5.8997	.4822
		0.674	3.152	27.57	XXHY		6.7927	.4054
5	5.563	0.188	5.187	10.80			4.1161	1.0979
		0.219	5.125	12.51			4.7279	1.0716
		0.258	5.047	14.63	STD.	40	5.4500	1.0391
		0.281	5.001	15.87			5.8644	1.0204
		0.312	4.939	17.51			6.4074	.99647
		0.344	4.875	19.19			6.9358	.9696
		0.375	4.813	20.80	XHY	80	7.4300	.9449
		0.500	4.563	27.06		120	9.2534	.8495
		0.625	4.313	32.99		160	10.7976	.7590
		0.750	4.063	38.59	XXHY		12.0954	.6734
6	6.625	0.109	6.407	7.59		5	3.5769	1.6748
		0.134	6.357	9.30		10	4.3475	1.6488
		0.156	6.313	10.79			5.0107	1.6260
		0.188	6.249	12.94			5.9351	1.5937
		0.203	6.219	13.94			6.3804	1.5780
		0.219	6.187	15.00			6.8261	1.5620
		0.250	6.125	17.04			7.6905	1.5306
		0.280	6.065	18.99	STD.	40	8.4958	1.5008
		0.312	6.001	21.06			9.3416	1.4688
		0.344	5.937	23.10			10.111	1.4391
		0.375	5.875	25.05			10.893	1.4082
		0.432	5.761	28.60	XHY	80	12.224	1.3541
		0.500	5.625	32.74			13.711	1.2909
		0.562	5.501	36.43		120	14.9806	1.2346
		0.625	5.375	40.09			16.1821	1.1787
		0.719	5.187	45.39		160	17.8243	1.0977
		0.864	4.897	53.21	XXHY		20.025	.9784
		1.000	4.625	60.13			21.7719	.8727
		1.125	4.375	66.14			23.1237	.7809

Related Alloy Steel Tubes Grades

Why Choose Us as Your ASTM A213 T9 Tube Supplier?

Selecting the right supplier is essential for maintaining the reliability and safety of high-temperature systems. We focus on delivering products that meet international quality standards while ensuring timely deliveries and responsive technical support.

Why customers choose us:

Extensive inventory for quick dispatch
Experienced ASTM A213 T9 tube supplier
Trusted ASTM A213 Gr T9 alloy steel tube manufacturer
Reliable ASME SA213 T9 tube exporter
Competitive pricing
Third-party inspection available
Complete mill test certificates (EN 10204 3.1)
Custom lengths and sizes
Worldwide shipping
Strict quality assurance procedures

Every order is carefully inspected to ensure compliance with ASTM and ASME specifications before dispatch.

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