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