we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
we have obtained ISO 9001, ISO 14001, ISO 45001, CE, AAA-level credit rating certification, etc.
ASME SA209/SA209M T1, T1a, T1b is the standard applicable to seamless carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes.
ASME SA209/SA209M tubes shall be made by the seamless process and shall be either hot-finished or cold finished as specified.
ASME SA209/SA209M covers several grades of minimum- wall-thickness, seamless, carbon-molybdenum alloy-steel, boiler and superheater tubes.
ASME SA209/SA209M covers tubes 1⁄2 to 5 in. [12.7 to 127 mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness.
Size:12.7 to 127 mm.
Wall Thickness: 0.9 to 12.7mm.
Shape: Round.
Length: Single random length/ Double random length or as customer’s actual request.
Grade: T1, T1a, T1b.
ASME SA209/SA209M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain- less Steel Tubes.
Chemical Composition (%)
|
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 |
/ |
|
T1a |
0.15-0.25 |
0.10-0.50 |
0.30-0.80 |
≤0.025 |
≤0.025 |
0.44-0.65 |
/ |
|
T1b |
0.14max |
0.10-0.50 |
0.30-0.80 |
≤0.025 |
≤0.025 |
0.44-0.65 |
/ |
Mechanical Properties
Tensile Requirements and Hardness
|
Mechanical Properties |
||||
|
Grade |
Tensile |
Yield |
Elongation |
Hardness |
|
Strength (Mpa) |
Strength (Mpa) |
(%) |
(HRB) |
|
|
T1 |
≥380 |
≥205 |
≥30 |
≤80 |
|
T1a |
≥365 |
≥195 |
≥30 |
≤81 |
|
T1b |
≥415 |
≥220 |
≥30 |
≤77 |
Flattening Test – One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Test – One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
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