ASTM A249 TP316L BA Stainless Steel Welded Tube For Boiler and Heat Exchanger
ASTM A249 TP316L Bright Annealed Stainless Steel Welded Tube Heat Exchanger Tube
A249 TP316L refers to a specific type of stainless steel tube commonly used in various industries, particularly in applications requiring resistance to corrosion and high temperatures. It has below good properties:
Properties
-
Corrosion Resistance:
- Excellent resistance to pitting and crevice corrosion, particularly in chloride environments.
-
High-Temperature Strength:
- Maintains good mechanical properties at elevated temperatures.
-
Weldability:
- Good weldability in various welding processes; commonly used in welded applications.
-
Durability:
- Offers strong mechanical properties, making it suitable for structural applications.
-
Formability:
- Can be easily formed and fabricated into various shapes and size
ASTM A249 TP316L Stainless Steel Welded Tube Equivalent Grade
| JIS | WNR. / DIN | UNS | AISI | EN |
| SUS316L | 1.4404 | S 31603 | 316L | 02Cr17Ni12Mo2 |
ASTM A249 TP316L Stainless Steel Welded Tube Mechanical Properties
| Tensile Stress (Mpa) | Yield Stress (Mpa) | Elongation (%) | Elongation (%) | |
|---|---|---|---|---|
| SA 249 316L | 485 | 170 | 35 | 25 |
| 1.4404 | 490-690 | 190 | 40 | 30 |
ASTM A249 TP316L Stainless Steel Welded Tube Chemical Composition
| SA 249 | C | Mn | P | S | Si | Ni | Cr | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| 316L | 0.035 | 2.00 | 0.045 | 0.030 | 1.0 | 10-14 | 16-18 | 2-3 | |
| 1.4404 | 0.03 | 2.00 | 0.040 | 0.015 | 1.0 | 10-13 | 16.5-18.5 | 2-2.5 | 0.11 |
Dimensional Tolerences--all dimensions in inches (mm)
| Size OD | Nominal Wall | Outside Diameter | Length | Wall |
| 1/2" (12.7) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 3/4" (19.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1" (25.4) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1-1/2" (38.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2" (50.8) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2-1/2" (63.5) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 3" (76.2) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 4" (101.6) | 0.083" (2.11) | +/-0.015" (0.38) | +1/8" (3.18) - 0 | +/-10.0% |
| 6" (152.4) | 0.083" (2.11) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 6" (152.4) | 0.109" (2.77) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 8" (203.2) | 0.109" (2.77) | +0.061" (1.55)/-0.031" (0.79) | +1" (25.4) - 0 | +/-10.0% |
Applications
- Heat Exchangers/superheater: Particularly used in heat exchangers due to its ability to resist oxidation and corrosion at elevated temperatures.
- Boiler
- Chemical Processing: Suitable for handling a wide range of chemicals.
- Food and Beverage Industry: Common in applications where hygiene and corrosion resistance are essential.
- Pharmaceuticals: Used in systems needing a clean and sterile environment.
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