SA209 T1a / T1 Boiler Super-Heater Seamless Alloy Steel Tube
Standard: ASTM A209 /A209M, ASME SA209.
Description Name: ASTM A209 / ASME SA209 T1, T1a, T1b Seamless tubes, ASTM A209 T1 Superheater tubes, ASME SA209 T1 Superheater tubes. ASTM A209 T1 boiler tubes, ASTM A209 T1a Tubes, ASTM A209 T1b Tubes, Seamless superheater tubes, Boiler tubes.
Size:12.7 to 127 mm.
Wall Thickness: 0.9 to 12.7mm.
Shape: Round.
The tube be 100% eddy current tested
Ultrasonic test is as option
Straightness ≤1mm/1000mm
Roughness: Ra ≤0.8
Length: Single random length/ Double random length or as customer’s actual request.
Grade: T1, T1a, T1b.
Referenced Documents:
ASTM A1016/A 1016M 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 | / |
All 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 |
Test
- One flattening test shall be made on specimens from each of two tubes from each lot or fraction thereof.
- One flaring test shall be made on specimens from each of two tubes from each lot or fraction thereof.
- For tension and hardness tests, the term lot applies to all tubes prior to cutting, of the same nominal diameter and wall thickness that are produced from the same heat of steel.
Tubes shall be delivered with square cut ends. The ends are free of excessive burrs.
The tubes are bundled in the waterproof plastic sheet and packed in the wooden cases
The case is most suitable for hanging by forklift.
EN10204-3.1 MTC shall be issued
EN10204-3.2 MTC is as option
LIAOCHENG KUNCHENG PIPE CO.,LTD.
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Honed Tube : JIS STKM13C, DIN ST52, SAE1020 ,DIN CK45 etc.
Alloy Seamless Tube: ASME SA-335 (P5, P9, P11, P22 P91) A213 -T22/T12 etc.
Hollow seamless bar :AISI 4130 ,ASTM 4140 etc.
Carbon steel pipe :ASTM A106 Gr.B
Stainless steel pipe : 304, 316, 316L & H grades etc.
Hollow section :S235JR, S275JR, S355JR, P265GH, P355N
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