ASTM A209 / SA209
ASTM A209 / SA209 Seamless Alloy Steel Tubes
Emirerri Steel offers high-quality ASTM A209 / SA209 seamless alloy steel tubes, designed for high-temperature applications in boilers, superheaters, and heat exchangers. Our tubes are engineered to deliver strength, durability, and excellent heat resistance, making them ideal for power generation and industrial applications.
What is ASTM A209 / SA209?
ASTM A209 / SA209 specifies seamless carbon-molybdenum alloy steel tubes suitable for high-temperature service. These tubes are widely used in power plants, petrochemical industries, and industrial boilers. They are manufactured using a seamless process and can be hot-finished or cold-finished, ensuring superior dimensional accuracy and mechanical properties.
The key alloying element in these grades is molybdenum, which improves strength, creep resistance, and high-temperature performance.
Grades Available
Grade T1
A standard seamless carbon-molybdenum alloy steel tube with carbon content of 0.10–0.20%.Grade T1a
This seamless alloy steel tube has a slightly higher carbon content of 0.15–0.25%, offering increased strength for demanding applications.Grade T1b
Designed with a maximum carbon content of 0.14%, this grade provides an excellent balance of strength and corrosion resistance.
ASTM A209 / SA209 Gr T1
ASTM A209 / SA209 Gr T1a
ASTM A209 / SA209 Gr T1b
ASTM A209 Gr T1A Heat Exchange Tube
ASTM A209 / SA209 Sizes
| Nominal Tube Size (inch) | Outside Diameter (OD) | Minimum Wall Thickness (WT) |
|---|---|---|
| 1/2″ | 0.500 / 12.7 mm | 0.035 / 0.9 mm |
| 3/4″ | 0.750 / 19.05 mm | 0.049 / 1.25 mm |
| 1″ | 1.000 / 25.4 mm | 0.065 / 1.65 mm |
| 1 1/4″ | 1.250 / 31.8 mm | 0.083 / 2.11 mm |
| 1 1/2″ | 1.500 / 38.1 mm | 0.095 / 2.41 mm |
| 2″ | 2.000 / 50.8 mm | 0.109 / 2.77 mm |
| 2 1/2″ | 2.500 / 63.5 mm | 0.120 / 3.05 mm |
| 3″ | 3.000 / 76.2 mm | 0.134 / 3.40 mm |
| 4″ | 4.000 / 101.6 mm | 0.187 / 4.75 mm |
| 5″ | 5.000 / 127.0 mm | 0.250 / 6.35 mm |
Key Characteristics
High-Temperature Performance – Maintains mechanical strength at elevated temperatures, suitable for boilers and superheaters.
Seamless Manufacturing – Made via seamless process, available in hot-finished or cold-finished forms.
Molybdenum Alloying – Enhances creep strength, heat resistance, and durability.
Corrosion Resistance – Offers good resistance to oxidation in high-temperature environments.
Applications
Power Plants – Boiler tubes and superheater tubes for high-pressure and high-temperature environments.
Industrial Boilers – Seamless alloy steel tubes for thermal and mechanical applications.
Petrochemical Industry – Heat exchanger tubes and process piping exposed to high temperature.