ASTM A213 Alloy Steel Tube refers to seamless steel pipes made of T-Grade alloy steel materials that meet ASTM A213 standards. These steel pipes are mainly designed for high temperature services, especially equipment such as boilers, superheaters and heat exchangers. ASTM A213 alloy steel tubes are used in aircraft structures, buildings, automobile wheel covers, conveyor belts and electrical appliances. Alloy steel tubes have excellent ductility and toughness even at low temperatures, and weldability is also very good.

ZIZI produces high-quality ASTM A213 alloy steel tubes that meet ASTM A213 standard specifications for seamless ferritic and austenitic alloy steel boiler, superheater and heat exchanger tubes. The product has excellent high temperature resistance, corrosion resistance and pressure resistance, and is an ideal choice for high temperature and high pressure environments such as boilers, superheaters and heat exchangers.

Alloy Steel Tube Size & Grades

Processing Method:	Seamless and Welded
Size Range	1/8” – 48” / DN6 – 1200
Thickness Schedule	SCH 20- SCH 160, XXS
Length	6m or 12 m or Random
Standard	ASME B36.10
Surface Treatment	Blasting and Painting, Epoxy Powder FBE, 2PE, 3PE Coating
Material Grade	A213 T11 / T12 / T22 / T5 / T9 / T91 / T92. 15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5

ASTM A213 Equivalent Standards

Standard	Name
ASTM A213	Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A209	Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes
ASTM A335	Seamless Ferritic Alloy-Steel Pipe for High-Temperature Services
DIN17175	Heat Resitant Seamless Steel Pipeline
GB/T5310	Seamless High Pressure Boiler Tubes

What are the grades of ASTM A213?

ASTM A213 / ASME SA213 covers seamless ferritic and austenitic alloy steel tubes used in boilers, superheaters, and heat exchangers for high-temperature and high-pressure applications.

These grades are low-alloy ferritic steels with good high-temperature strength and oxidation resistance.

Grade	Chemical Composition Highlights	Key Features	Applications
T1	0.24% C, 0.30–0.80% Mn, 0.44–0.65% Mo	Basic grade, moderate strength	Low-pressure boilers
T2	0.10–0.20% C, 0.30–0.61% Mn, 0.44–0.65% Mo	Improved strength over T1	Power plants
T5	4.00–6.00% Cr, 0.45–0.65% Mo	High oxidation resistance	Steam boilers, heat exchangers
T9	8.00–10.00% Cr, 0.90–1.10% Mo	High creep resistance	High-pressure boilers
T11	1.00–1.50% Cr, 0.44–0.65% Mo	Moderate strength, easy weldability	Industrial boilers
T12	0.80–1.25% Cr, 0.44–0.65% Mo	Slightly better oxidation resistance than T11	Heat exchangers, refinery piping
T22	1.90–2.60% Cr, 0.87–1.13% Mo	Higher strength, oxidation resistance	Superheaters, power plants
T23	1.90–2.60% Cr, 0.05–0.30% Mo, 0.20–0.30% V, 0.03–0.07% Nb	Higher strength than T22	High-pressure boilers
T24	2.00–2.50% Cr, 0.90–1.10% Mo, 0.20–0.30% V, 0.03–0.07% Nb	High creep and oxidation resistance	Ultra-supercritical boilers
T91	8.00–9.50% Cr, 0.85–1.05% Mo, 0.18–0.25% V, 0.06–0.10% Nb	High strength, superior oxidation resistance	Power generation, oil refineries
T92	8.50–9.50% Cr, 0.30–0.60% Mo, 0.15–0.25% V, 0.03–0.07% Nb, 0.45–0.65% W	Higher creep and thermal efficiency than T91	Ultra-supercritical boilers

ASTM A213 Seamless Tube Chemical Composition

CHEMICAL	C	Mn	P	S	Si	Cr	Mo
ASTM A213 T5 MIN	–	0.3	–	–	–	4	0.45
ASTM A213 T5 MAX	0.15	0.6	0.025	0.025	0.5	6	0.65
ASTM A213 T9 MIN	–	0.3	–	–	0.25	8	0.9
ASTM A213 T9 MAX	0.15	0.6	0.025	0.025	1	10	1.1
ASTM A213 T11 MIN	0.05	0.3	–	–	0.5	1	0.44
ASTM A213 T11 MAX	0.15	0.6	0.025	0.025	1	1.5	0.65
ASTM A213T12 MIN	0.05	0.3	–	–		0.8	0.44
ASTM A213T12 MAX	0.15	0.61	0.025	0.025	0.5	1.25	0.65
ASTM A213 T22 MIN	0.05	0.3	–	–	–	1.9	0.87
ASTM A213 T22 MAX	0.15	0.6	0.025	0.025	0.5	2.6	1.13
ASTM A213 T91 MIN	0.07	0.3	–	–	0.2	8	0.85
ASTM A213 T91 MAX	0.14	0.6	0.02	0.01	0.5	9.5	1.05

ASTM A213 Seamless Tube Mechanical Property

Steel Grade	T. S	Y. P	Elongation	Hardness
T5	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T9	≥ 415MPa	≥ 205MPa	≥ 30%	179HBW(89HRB)
T11	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T12	≥ 415MPa	≥ 220MPa	≥ 30%	163HBW(85HRB)
T22	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T91	≥ 585MPa	≥ 415MPa	≥ 20%	250HBW(25HRB)

Performance Characteristics

High strength: T-Grade alloy steel pipes can still maintain high strength at high temperatures, can withstand the pressure brought by high temperature and high pressure media, and ensure the safe operation of the pipeline system.

Good toughness: With good impact toughness, it can prevent the pipeline from brittle fracture due to impact or vibration within the normal working temperature range.

Creep resistance: ASTM A213 alloy steel tube have excellent creep resistance under high temperature and long-term load, which can effectively delay material deformation and extend the service life of the pipeline.

High temperature oxidation resistance: Under the action of chromium and other elements, a stable oxide film is formed, which can be used for a long time in a high temperature environment of 500-650℃, resisting high temperature oxidation and steam corrosion.

Thermal conductivity: The thermal conductivity is moderate, which is conducive to heat transfer. In heat exchange equipment such as boilers, it can effectively transfer heat to the medium and improve heat exchange efficiency.

Thermal expansion coefficient: The thermal expansion coefficient matches well with other metal materials. During temperature changes, it works with other components to reduce stress concentration caused by thermal expansion and contraction.

Alloy Steel Pipe Dimensions

DN	NPS	OD	SCH10	SCH20	SCH30	STD	SCH40	SCH60	XS	SCH80
6	1/8	10.3	1.24	–	1.45	1.73	1.73	–	2.41	2.41
8	1/4	13.7	1.65	–	1.85	2.24	2.24	–	3.02	3.02
10	3/8	17.1	1.65	–	1.85	2.31	2.31	–	3.2	3.2
15	1/2	21.3	2.11	–	2.41	2.77	2.77	–	3.73	3.73
20	3/4	26.7	2.11	–	2.41	2.87	2.87	–	3.91	3.91
25	1	33.4	2.77	–	2.9	3.38	3.38	–	4.55	4.55
32	1 1/4	42.2	2.77	–	2.97	3.56	3.56	–	4.85	4.85
40	1 1/2	48.3	2.77	–	3.18	3.68	3.68	–	5.08	5.08
50	2	60.3	2.77	–	3.18	3.91	3.91	–	5.54	5.54
65	2 1/2	73	3.05	–	4.78	5.16	5.16	–	7.01	7.01
80	3	88.9	3.05	–	4.78	5.49	5.49	–	7.62	7.62
90	31/2	101.6	3.05	–	4.78	5.74	5.74	–	8.08	8.08
100	4	114.37	3.05	–	4.78	6.02	6.02	–	8.56	8.56

ASTM A213 Tubes Permissible Variations in 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

ASTM A213 Seamless Tubes Permissible Variation in 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

Application of Alloy Seamless Steel Pipe

Electric power industry

Thermal power plant

Nuclear power plant

Petrochemical and oil refining industry

Heating furnace tube

Heat exchanger tube

High-pressure transmission pipeline

Other high-temperature and high-pressure industries

Pharmaceutical equipment

Food processing

Industrial boiler

Our Products and Services

Shanghai Zhucheng Pipe Fittings Manufacturing Co., Ltd. specializes in providing ASTM A213 T-Grade alloy steel pipes, with a wide range of grades and specifications to choose from, strictly controlled in accordance with standards, and undergoing strict testing and perfect quality management to help you with high temperature and high pressure projects:

Complete brand and specification inventory

Can be sized and customized according to design requirements

Complete testing and factory inspection

Supporting solution design and technical support

You can get an offer for products in below material forms:

-Pipe and Tube (EN 10216-5, ASTM A213, ASTM A249, A312, A790,)

-Forged Fitting and Flange (ASTM A182 , ASTM A105,ASTM B564 )

-Butt Weld Fittings (ASTM A234, ASTM A403,ASTM A815)

-Round bar , Billet (ASTM A276, ASTM A479)

– Plate, Sheet, Strip(ASTM A240, EN 10028-7, A480)

-Bolting, Nuts（ASTM A193, A194, A320）

ASTM A213 Alloy Steel Tube Exported Countries

We Export ASTM A213 Alloy Steel Tube to Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Cambodia, Argentina, Bolivia, Brazil, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Jamaica, Bahamas, Denmark, Norway, Germany, France,Italy, United Kingdom, Spain, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Finland, Ireland, Croatia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan,  Europe, Africa, Asia, North America, South America, Middle East.etc