ASTM A209 seamles alloy steel pipe is made from carbon-molybdenum alloy steel. The addition of molybdenum enhances the material's high temperature strength and corrosion resistance.
SA209 pipe is produced using a seamless manufacturing process that ensures a continuous and uniform structure without welds. This seamless structure is important for applications involving high temperatures and pressures.
ASTM A209 alloy steel pipe is commonly used in the construction of boilers, superheaters, and heat exchangers in power plants and other industrial settings.
The ASTM A209 standard specifies various grades and categories of alloy steel pipe. The different grades indicate changes in chemical composition and mechanical properties, while the grades indicate heat treatment conditions.
Typical grades and categories of ASTM A209 structural seamless pipe: T1a, T1b, T2, T11, T12, T22 Grades: Grades 1 and 2 represent different heat treatment conditions. Stage 1 pipes are annealed or normalized, while Stage 2 pipes are fully or isothermally annealed after the final cold working process.
Chemical Composition of ASTM A209 Alloy Pipe
|
C |
Mn |
P |
S |
Si |
Mo |
|
|
T1 |
0.10-0.20 |
0.30-0.80 |
0.025 |
0.025 |
0.10-0.50 |
0.44-0.65 |
|
0.15-0.25 |
0.30-0.80 |
0.025 |
0.025 |
0.10-0.50 |
0.44-0.65 |
|
|
T1b |
0.14 |
0.30-0.80 |
0.025 |
=.025 |
0.10-0.50 |
0.44-0.65 |
Mechanical Properties of ASME SA209 Seamless Pipe
|
Grade |
T1 |
T1a |
T1b |
|
Tensile Strength min Ksi(Mpa) |
55(380) |
60(415) |
43(365) |
|
Yield Strength Min Ksi(Mpa) |
30(205 |
32(220) |
28(195) |
|
Elongation in 2in or 50mm min% |
30 |
30 |
30 |
ASTM A209 GR T1 Alloy Steel Seamless Pipes
ASTM A209 /A209M ASME SA209 pipes shall be manufactured by seamless process and shall be hot worked or cold worked as specified.
Standard: ASTM A209 /A209M, ASME SA209.
Size: 12.7 to 127 mm.
Wall thickness: 0.9 to 12.7 mm.
Length: Single random length/Double random length or as per customer's actual requirements.
Grade: T1, T1a, T1b.
Size: 12.7 to 127 mm.
Wall thickness: 0.9 to 12.7 mm.
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