ASTM A209 T1 alloy steel boiler tubes are used in high temperature and high pressure applications such as boilers, superheaters, heat exchangers and similar equipment in power plants and industrial environments.
There are several grades in the A209 specification, including T1, T1a, T1b.
T1 grade ASTM A209 alloy steel boiler tubes are composed of a specific steel alloy containing elements such as carbon, manganese, phosphorus, sulfur, silicon, chromium and molybdenum. Among them, the addition of molybdenum significantly improves the material's high temperature strength and corrosion resistance.
ASTM A209 T1 steel boiler tubes are available in a variety of sizes, typically ranging from 1/2 inch to 5 inches (12.7 to 127 mm) in outside diameter, with a minimum wall thickness of up to 0.035 inches (0.89 mm).
During the manufacturing process, these pipes undergo a series of heat treatment steps, including full annealing or isothermal annealing, normalizing and tempering or stress relieving to ensure stable and optimized performanc
Chemical Composition of ASTM A209 T1 Seamless Boiler Tube
| Grade | C | Si | Mn | P | S | Mo | Cr |
| T1 | 0.10-0.20 | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
Physical Properties of SA209 Alloy Steel Boiler Tubes
| physical properties | numerical value |
|---|---|
| density | Approximately 7.85 grams/cubic centimeter |
| Specific heat capacity | about 0.46 kJ/(g·℃) |
| Thermal conductivity | 15 W/(m·℃) |
| Elastic Modulus | 200 GPa |
| Poisson's ratio | 0.29 |
A209 T1 steel boiler tubes
Tolerances of Length
| Method of Manufacture |
Specified Outside Diameter, in.[mm] |
Cut Length, in. [mm] | |
| Over | Under | ||
| Seamless, hot-finished | All sizes | 3 ⁄ 16 [5] | 0 [0] |
| Seamless, cold-finished | Under 2 [50.8] | 1 ⁄ 8 [3] | 0 [0] |
| 2 [50.8] or over | 3 ⁄ 16 [5] | 0 [0] | |
| 2 [50.8] or over | 3 ⁄ 16 [5] | 0 [0] | |
Additional Info
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
Founded in 2008, Gnee Company is a professional manufacturer and service provider of various special seamless steel pipes, specializing in the production of fluid pipes, boiler pipes, alloy structural pipes, automobile pipes, marine pipes, etc. We have advanced production equipment, sufficient inventory, and many partners.
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