ASTM A269 1/2" X BWG 20 Stainless Steel Welded Tubes Grade TP304 / 304L
Precision tubes are finished up by bright annealing or special cold drawing. Precision tubes corresponds to the usage in which a high surface quality and excellent dimensional accuracy are demanded for nuclear power, for the semiconductor, for the medical treatment and for food etc
Instrumentation Tubing / Hydraulic Tubing Size Range:
Outside Diameter: 1/16” through 4.00”
Wall Thickness: .010” through .250”
Welded Stainless Steel Instrumentation Tubing:
Governing Production Specifications – ASTM A249 and ASTM A269
Seamless Stainless Steel instrumentation Tubing:
Governing Production Specifications – ASTM A213 (average wall) and ASTM A269
Specification:
| Chemical Composition (%) | Cr | Ni | C | Mo | Si | P | S |
| T304/L | 18.0 – 20.0 | 8.0 – 12.0 | 0.03 (max) | – | 1.0 (max) | 0.045 (max) | .030 (max |
| T316/L | 16.0 – 18.0 | 10.0 – 14.0 | 0.03 (max) | 2.0 – 3.0 | 1.0 (max) | 0.045 (max) | .030 (max) |
Available tube product forms
Straight
Coiled
Seamless
Seam welded and cold redrawn
Seam welded, cold redrawn and annealed
Typical Applications
Moisture seperator reheaters
Feedwater tubes
Stator bars
Heat exchangers
Features:
1. Dual Certified Austenitic 316/316L Stainless Steel
2. Annealed Instrumentation Grade Tubing
3. Complies to / Exceeds ASTM A269 Standard
4. Chemically Cleaned and Passivated
5. Available in sizes from 1/4” to 1-1/2” OD
6. Metric Sizes Available
7. Minimum 2.5% Molybdenum by Weight
8. Good resistance to attacks in acidic environments
9. Good resistance to pitting in neutral chloride-bearing solutions
10. Good resistance to Stress Corrosion Cracking
11. Good weldability
12. Surface - Polished to 320 grit
13. Hardness of not more than Rb 90
| Description | OD (mm) | Wall Thickness (mm) | Bar | Available Lengths |
| 6 x 1 mm | 6 mm | 1 mm | 428 | 3 Metre & 6 Metre Lengths |
| 6 x 1.5 mm | 6 mm | 1.5 mm | 627 | 3 Metre & 6 Metre Lengths |
| 6 x 2 mm | 6 mm | 2 mm | 942 | 3 Metre Lengths |
| 8 x 1 mm | 8 mm | 1 mm | 321 | 3 Metre & 6 Metre Lengths |
| 8 x 1.5 mm | 8 mm | 1.5 mm | 472 | 3 Metre & 6 Metre Lengths |
| 8 x 2 mm | 8 mm | 2 mm | 706 | 3 Metre Lengths |
| 10 x 1 mm | 10 mm | 1 mm | 257 | 3 Metre & 6 Metre Lengths |
| 10 x 1.5 mm | 10 mm | 1.5 mm | 385 | 3 Metre & 6 Metre Lengths |
| 10 x 2 mm | 10 mm | 2 mm | 564 | 3 Metre Lengths |
| 12 x 1 mm | 12 mm | 1 mm | 210 | 3 Metre Lengths |
| 12 x 1.5 mm | 12 mm | 1.5 mm | 321 | 3 Metre & 6 Metre Lengths |
| 12 x 2 mm | 12 mm | 2 mm | 420 | 3 Metre Lengths |
| 15 x 1 mm | 15 mm | 1 mm | 200 | 3 Metre Lengths |
| 15 x 1.5 mm | 15 mm | 1.5 mm | 257 | 3 Metre & 6 Metre Lengths |
| 15 x 2 mm | 15 mm | 2 mm | 376 | 3 Metre Lengths |
| 16 x 1.5 mm | 16 mm | 1.5 mm | 235 | 3 Metre & 6 Metre Lengths |
| 16 x 2 mm | 16 mm | 2 mm | 321 | 3 Metre Lengths |
| 18 x 1.5 mm | 18 mm | 1.5 mm | 235 | 3 Metre Lengths |
| 18 x 2 mm | 18 mm | 2 mm | 314 | 3 Metre Lengths |
| 20 x 1.5 mm | 20 mm | 1.5 mm | 212 | 3 Metre Lengths |
| 20 x 2 mm | 20 mm | 2 mm | 257 | 3 Metre & 6 Metre Lengths |
| 20 x 3 mm | 20 mm | 3 mm | 424 | 3 Metre Lengths |
| 22 x 1.5 mm | 22 mm | 1.5 mm | 193 | 3 Metre Lengths |
| 22 x 2 mm | 22 mm | 2 mm | 256 | 3 Metre Lengths |
| 25 x 1.5 mm | 25 mm | 1.5 mm | 169 | 3 Metre & 6 Metre Lengths |
| 25 x 2 mm | 25 mm | 2 mm | 226 | 3 Metre Lengths |
| 25 x 2.5 mm | 25 mm | 2.5 mm | 210 | 3 Metre Lengths |
| 25 x 3 mm | 25 mm | 3 mm | 339 | 3 Metre Lengths |
| 28 x 2 mm | 28 mm | 2 mm | 201 | 3 Metre Lengths |
| 30 x 3 mm | 30 mm | 3 mm | 257 | 3 Metre & 6 Metre Lengths |
| 35 x 3 mm | 35 mm | 3 mm | 242 | 3 Metre Lengths |
| 42 x 3 mm | 42 mm | 3 mm | 201 | 3 Metre Lengths |
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ASTM A269 1/2" X BWG 20 Stainless Steel Welded Tubes Grade TP304 / 304L Images
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